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1.
Ultrasound Obstet Gynecol ; 64(4): 538-549, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-38477149

RESUMEN

OBJECTIVES: To externally and prospectively validate the International Ovarian Tumor Analysis (IOTA) Simple Rules (SRs), Logistic Regression model 2 (LR2) and Assessment of Different NEoplasias in the adneXa (ADNEX) model in a Portuguese population, comparing these approaches with subjective assessment and the risk-of-malignancy index (RMI), as well as with each other. This study also aimed to retrospectively validate the IOTA two-step strategy, using modified benign simple descriptors (MBDs) followed by the ADNEX model in cases in which MBDs were not applicable. METHODS: This was a prospective multicenter diagnostic accuracy study conducted between January 2016 and December 2021 of consecutive patients with an ultrasound diagnosis of at least one adnexal tumor, who underwent surgery at one of three tertiary referral centers in Lisbon, Portugal. All ultrasound assessments were performed by Level-II or -III sonologists with IOTA certification. Patient clinical data and serum CA 125 levels were collected from hospital databases. Each adnexal mass was classified as benign or malignant using subjective assessment, RMI, IOTA SRs, LR2 and the ADNEX model (with and without CA 125). The reference standard was histopathological diagnosis. In the second phase, all adnexal tumors were classified retrospectively using the two-step strategy (MBDs + ADNEX). Sensitivity, specificity, positive and negative predictive values, positive and negative likelihood ratios and overall accuracy were determined for all methods. Receiver-operating-characteristics curves were constructed and corresponding areas under the curve (AUC) were determined for RMI, LR2, the ADNEX model and the two-step strategy. The ADNEX model calibration plots were constructed using locally estimated scatterplot smoothing (LOESS). RESULTS: Of the 571 patients included in the study, 428 had benign disease and 143 had malignant disease (prevalence of malignancy, 25.0%), of which 42 had borderline ovarian tumor, 93 had primary invasive adnexal cancer and eight had metastatic tumors in the adnexa. Subjective assessment had an overall sensitivity of 97.9% and a specificity of 83.6% for distinguishing between benign and malignant lesions. RMI showed high specificity (95.6%) but very low sensitivity (58.7%), with an AUC of 0.913. The IOTA SRs were applicable in 80.0% of patients, with a sensitivity of 94.8% and specificity of 98.6%. The IOTA LR2 had a sensitivity of 84.6%, specificity of 86.9% and an AUC of 0.939, at a malignancy risk cut-off of 10%. At the same cut-off, the sensitivity, specificity and AUC for the ADNEX model with vs without CA 125 were 95.8% vs 98.6%, 82.5% vs 79.7% and 0.962 vs 0.960, respectively. The ADNEX model gave heterogeneous results for distinguishing between benign masses and different subtypes of malignancy, with the highest AUC (0.991) for discriminating benign masses from primary invasive adnexal cancer Stages II-IV, and the lowest AUC (0.696) for discriminating primary invasive adnexal cancer Stage I from metastatic lesion in the adnexa. The calibration plot suggested underestimation of the risk by the ADNEX model compared with the observed proportion of malignancy. The MBDs were applicable in 26.3% (150/571) of cases, of which none was malignant. The two-step strategy using the ADNEX model in the second step only, with and without CA 125, had AUCs of 0.964 and 0.961, respectively, which was similar to applying the ADNEX model in all patients. CONCLUSIONS: The IOTA methods showed good-to-excellent performance in the Portuguese population, outperforming RMI. The ADNEX model was superior to other methods in terms of accuracy, but interpretation of its ability to distinguish between malignant subtypes was limited by sample size and large differences in the prevalence of tumor subtypes. The IOTA MBDs are reliable in identifying benign disease. The two-step strategy comprising application of MBDs followed by the ADNEX model if MBDs are not applicable, is suitable for daily clinical practice, circumventing the need to calculate the risk of malignancy in all patients. © 2024 International Society of Ultrasound in Obstetrics and Gynecology.


Asunto(s)
Enfermedades de los Anexos , Neoplasias Ováricas , Ultrasonografía , Humanos , Femenino , Portugal , Estudios Retrospectivos , Estudios Prospectivos , Persona de Mediana Edad , Enfermedades de los Anexos/diagnóstico por imagen , Ultrasonografía/métodos , Adulto , Neoplasias Ováricas/diagnóstico por imagen , Neoplasias Ováricas/patología , Neoplasias Ováricas/clasificación , Neoplasias Ováricas/sangre , Sensibilidad y Especificidad , Anciano , Antígeno Ca-125/sangre , Curva ROC , Modelos Logísticos , Valor Predictivo de las Pruebas , Reproducibilidad de los Resultados , Diagnóstico Diferencial
2.
Surg Endosc ; 38(7): 3547-3555, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-38814347

RESUMEN

INTRODUCTION: The variety of robotic surgery systems, training modalities, and assessment tools within robotic surgery training is extensive. This systematic review aimed to comprehensively overview different training modalities and assessment methods for teaching and assessing surgical skills in robotic surgery, with a specific focus on comparing objective and subjective assessment methods. METHODS: A systematic review was conducted following the PRISMA guidelines. The electronic databases Pubmed, EMBASE, and Cochrane were searched from inception until February 1, 2022. Included studies consisted of robotic-assisted surgery training (e.g., box training, virtual reality training, cadaver training and animal tissue training) with an assessment method (objective or subjective), such as assessment forms, virtual reality scores, peer-to-peer feedback or time recording. RESULTS: The search identified 1591 studies. After abstract screening and full-texts examination, 209 studies were identified that focused on robotic surgery training and included an assessment tool. The majority of the studies utilized the da Vinci Surgical System, with dry lab training being the most common approach, followed by the da Vinci Surgical Skills Simulator. The most frequently used assessment methods included simulator scoring system (e.g., dVSS score), and assessment forms (e.g., GEARS and OSATS). CONCLUSION: This systematic review provides an overview of training modalities and assessment methods in robotic-assisted surgery. Dry lab training on the da Vinci Surgical System and training on the da Vinci Skills Simulator are the predominant approaches. However, focused training on tissue handling, manipulation, and force interaction is lacking, despite the absence of haptic feedback. Future research should focus on developing universal objective assessment and feedback methods to address these limitations as the field continues to evolve.


Asunto(s)
Competencia Clínica , Procedimientos Quirúrgicos Robotizados , Procedimientos Quirúrgicos Robotizados/educación , Humanos , Entrenamiento Simulado/métodos , Evaluación Educacional/métodos , Realidad Virtual , Animales , Cadáver
3.
Skin Res Technol ; 30(2): e13593, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38279602

RESUMEN

OBJECTIVE: To assess the subjective experiences of patients following monopolar radiofrequency (RF) treatment for facial rejuvenation and anti-aging purposes. METHODS: A study involving 50 female patients (aged 30-70 years, Fitzpatrick skin type III and IV) who received a single session of RF treatment. Exclusion criteria comprised active infections, skin diseases, pregnancy, or history of recent anti-aging treatments. Thirty-four patients completed a 10-question questionnaire after 3 months of treatment. RESULTS: Among the respondents, 82% expressed satisfaction with the RF treatment, reporting significant improvements primarily in the mid and lower face, and eyelids. Mainly, patients noted improvements in skin laxity (52.9%), skin texture (17.6%), and skin tone (11.7%). Notably, 73.5% noticed changes within 1-2 months post-treatment, with the peak effect observed at 1-2 months. Mild complications (swelling and erythema) were reported, usually resolving within a week. The mean pain score was 1.94 (±0.66), indicating mild to moderate discomfort. DISCUSSION: Monopolar RF devices, apply high-frequency electric currents generating heat, stimulating collagen production for skin tightening. This study's unique focus on detailed subjective patient experiences provides insights valuable in clinical settings, aiding clinicians in managing patient expectations and achieving optimal results. The satisfaction rates align with previous findings, emphasizing RF treatment's efficacy in addressing facial laxity, especially in the mid and lower face. Positive feedback extended beyond skin tightening, encompassing skin texture and tone improvements. While the study's observation period was 3 months post-treatment, longer-term studies are warranted for comprehensive assessments. CONCLUSION: The study underscores the efficacy of monopolar RF device, as a non-invasive and effective anti-aging treatment. The findings contribute to diversifying the RF market, potentially aiding clinicians in optimizing patient care. Considering the growing complexity of patient demands and treatment responses, this study serves as a valuable reference for clinicians engaging in RF treatments.


Asunto(s)
Técnicas Cosméticas , Terapia por Radiofrecuencia , Envejecimiento de la Piel , Humanos , Femenino , Rejuvenecimiento , Satisfacción del Paciente , Cara
4.
Child Care Health Dev ; 50(3): e13272, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38706418

RESUMEN

OBJECTIVES: The objective of this study is to assess the concordance and its association with sociocultural background of a four-question survey with accelerometry in a multiethnic adolescent population, regarding sleep components. Based on questions from the Pittsburgh Sleep Quality Index and adapted to a school context, the questionnaire focussed on estimating sleep onset time, wake-up time and sleep duration on both weekdays and weekends. This subjective survey was compared with accelerometry data while also considering the influence of sociocultural factors (sex, place of living, ethnic community and socio-economic status). METHODS: Adolescents aged 10.5-16 years (n = 182) in New Caledonia completed the survey and wore an accelerometer for seven consecutive days. Accelerometry was used to determine sleep onset and wake-up time using validated algorithms. Based on response comparison, Bland-Altman plots provided agreement between subjective answers and objective measures. We categorized participants' answers to the survey into underestimated, aligned and overestimated categories based on time discrepancies with accelerometry data. Multinomial regressions highlighted the sociocultural factors associated with discrepancies. RESULTS: Concordance between the accelerometer and self-reported assessments was low particularly during weekends (18%, 26% and 19% aligned for onset sleep time, wake-up time and sleep duration respectively) compared with weekdays (36%, 53% and 31% aligned, respectively). This means that the overall concordance was less than 30%. When considering the sociocultural factors, only place of living was associated with discrepancies in onset sleep time and wake-up time primarily on weekdays. Rural adolescents were more likely to overestimate both onset sleep time (B = -1.97, p < 0.001) and wake-up time (B = -1.69, p = 0.003). CONCLUSIONS: The study found low concordance between self-assessment and accelerometry outputs for sleep components. This was particularly low for weekend days and for participants living in rural areas. While the adapted four-item questionnaire was useful and easy to complete, caution should be taken when making conclusions about sleep habits based solely on this measurement.


Asunto(s)
Acelerometría , Autoinforme , Humanos , Adolescente , Femenino , Masculino , Niño , Sueño/fisiología , Nueva Caledonia , Calidad del Sueño , Encuestas y Cuestionarios , Factores Socioeconómicos
5.
Rev Infirm ; 73(300): 28-29, 2024 Apr.
Artículo en Francés | MEDLINE | ID: mdl-38643998

RESUMEN

The Neurological Intensive Care Unit (ICU) at Pitié-Salpêtrière Hospital cares for patients with severe brain injuries, which can lead to acute or chronic disorders of consciousness. To assess the patient's state of consciousness, the team relies on precise clinical examination. This article presents the assessment tools used to establish the patient's prognosis.


Asunto(s)
Trastornos de la Conciencia , Humanos , Trastornos de la Conciencia/diagnóstico , Estado de Conciencia
6.
Gynecol Obstet Invest ; 88(2): 116-122, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36716716

RESUMEN

OBJECTIVES: The aim of this study was to evaluate the accuracy of IOTA Simple Rules (SR), IOTA ADNEX model, Risk of Malignancy Index (RMI), and subjective assessment (SA) which is used for adnexal mass assessment in our institution. DESIGN: This is a prospective observational study. PARTICIPANTS/MATERIALS, SETTING, METHODS: We included patients with at least one adnexal mass who needed elective surgical evaluation based on clinical and laboratory findings. Patients admitted to Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, were recruited for the study between January 2019 and June 2021. Level II ultrasonographers performed a gray scale and Doppler exam for each patient. Preoperative classification of adnexal masses (benign or malignant) was performed by SA, the International Ovarian Analysis Group (IOTA) SR, IOTA ADNEX model, and Risk of Malignancy Index (RMI). Postoperatively obtained histological findings were used as a reference. RESULTS: During the study period, we enrolled 179 premenopausal and 217 postmenopausal patients, representing 396 patients in our sample. Prevalence of malignant disease in pre- and postmenopausal groups was 16.2% (29/179) and 41% (89/217), respectively. Malignant disease was diagnosed in 29.8% (118/396) of patients. SA achieved the highest discrimination accuracy between benign and malignant tumors (area under the curve [AUC] of 0.928, 95% CI [0.898-0.952]). For SA, the overall diagnostic accuracy, sensitivity, specificity, positive likelihood ratio (LR+), and negative likelihood ratio (LR-) were 91.4%, 88.1%, 92.8%, 12.25, and 0.13. The AUC for Simple Rules with subjective assessment in inconclusive cases (SR + SA) was 0.912 (95% CI [0.880-0.938]). Regarding SR + SA, diagnostic accuracy, sensitivity, specificity, LR+, and LR- were 92.4%, 88.1%, 94.2%, 15.31, and 0.13. The ADNEX model had the AUC of 0.914 (95% CI [0.882-0.940]). Binary classification using the ADNEX model at a cut-off value of 10% for malignancy had the sensitivity, specificity, LR+ and LR- of 92.4%, 73.0%, 3.42, and 0.10. This resulted in the lowest overall accuracy of 78.8%. The AUC for RMI was 0.854 (95% CI [0.815-0.887]), with overall accuracy, sensitivity, specificity, LR+ and LR- of 82.3%, 73.7%, 86.0%, 5.26, and 0.31. There was no difference in the AUCs of the SA and IOTA models for the whole group, premenopausal, and postmenopausal groups. RMI performed worse compared to SA and the IOTA models. The ADNEX model achieved the highest accuracy at the cut-off value of 35%. LIMITATIONS: The data generalizability is limited by a single institution-dependent sampling. CONCLUSIONS: The IOTA SR and ADNEX model were reliable and comparable with the SA and performed better than the RMI. The IOTA SR model offers the potential for immediate and reliable diagnosis, even in the hands of less experienced ultrasonographers. Both IOTA models studied can be a valuable adjunct to a clinician's decision-making process.


Asunto(s)
Enfermedades de los Anexos , Neoplasias Ováricas , Femenino , Humanos , Enfermedades de los Anexos/diagnóstico por imagen , Enfermedades de los Anexos/cirugía , Diagnóstico Diferencial , Hospitales , Neoplasias Ováricas/diagnóstico por imagen , Neoplasias Ováricas/cirugía , Sensibilidad y Especificidad , Atención Terciaria de Salud , Ultrasonografía , Estudios Prospectivos , Premenopausia , Posmenopausia
7.
J Digit Imaging ; 36(6): 2623-2634, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37550519

RESUMEN

Image quality assessments (IQA) are an important task for providing appropriate medical care. Full-reference IQA (FR-IQA) methods, such as peak signal-to-noise ratio (PSNR) and structural similarity (SSIM), are often used to evaluate imaging conditions, reconstruction conditions, and image processing algorithms, including noise reduction and super-resolution technology. However, these IQA methods may be inapplicable for medical images because they were designed for natural images. Therefore, this study aimed to investigate the correlation between objective assessment by some FR-IQA methods and human subjective assessment for computed tomography (CT) images. For evaluation, 210 distorted images were created from six original images using two types of degradation: noise and blur. We employed nine widely used FR-IQA methods for natural images: PSNR, SSIM, feature similarity (FSIM), information fidelity criterion (IFC), visual information fidelity (VIF), noise quality measure (NQM), visual signal-to-noise ratio (VSNR), multi-scale SSIM (MSSSIM), and information content-weighted SSIM (IWSSIM). Six observers performed subjective assessments using the double stimulus continuous quality scale (DSCQS) method. The performance of IQA methods was quantified using Pearson's linear correlation coefficient (PLCC), Spearman rank order correlation coefficient (SROCC), and root-mean-square error (RMSE). Nine FR-IQA methods developed for natural images were all strongly correlated with the subjective assessment (PLCC and SROCC > 0.8), indicating that these methods can apply to CT images. Particularly, VIF had the best values for all three items, PLCC, SROCC, and RMSE. These results suggest that VIF provides the most accurate alternative measure to subjective assessments for CT images.


Asunto(s)
Procesamiento de Imagen Asistido por Computador , Tomografía Computarizada por Rayos X , Humanos , Tomografía Computarizada por Rayos X/métodos , Procesamiento de Imagen Asistido por Computador/métodos , Algoritmos , Relación Señal-Ruido
8.
Beijing Da Xue Xue Bao Yi Xue Ban ; 55(4): 708-715, 2023 Aug 18.
Artículo en Zh | MEDLINE | ID: mdl-37534656

RESUMEN

OBJECTIVE: To preliminarily establish a category of facial symmetry perception after maxillary reconstruction using anterolateral thigh flap (ALTF) by the methods of stereophotogrammetry and subjective assessment. METHODS: The patients underwent maxillectomy due to neoplasms invasion, and all the maxillary defects were reconstructed using ALTF.Three-dimensional (3D) photographs were captured from the patients with a stereophotogrammatrical camera set-up.In the Geomagic software, the mirror image was created by reflecting along an arbitrary plane outside of the face.After the registration, the postoperative side on the original 3D photograph was segmented into 6 areas.The 3D change of the facial soft-tissue was measured using surface-based color map.Twenty laypeople took part in the study as observers, and they were asked to rate the 3D photographs using 5 point Likert-type scale according to their own aesthetic standard.The soft tissue asymmetry was graded according to the score.The collected data were subjected to statistical analysis using the SPSS 24.0 software. RESULTS: In the study, 44 subjects were recruited (21 males and 23 females, age range from 19 to 79 years).The soft-tissue symmetry was graded into three levels according to the subjective scores.The grade Ⅰ was basically symmetrical.The grade Ⅱ was slightly asymmetrical.The grade Ⅲ was obviously asymmetrical.Statistically significant differences were found in the suborbital (P < 0.05) and zygomatic (P < 0.05) areas when comparing all grades of soft-tissue asymmetry, and in the buccal (P < 0.05) and superiolabial (P < 0.05) areas when comparing grades Ⅰ and Ⅲ.The extent of maxillary defect had significant impact on the symmetry of the midface soft-tissue after maxillary reconstruction. CONCLUSION: Varying extent maxillectomy would result in varying degrees of asymmetry, and cause different grades of symmetry perception even if they had been reconstructed using ALTF.The higher the grade, the worse the symmetry of facial soft-tissue.Suborbital and zygomatic areas were important aesthetic units that affected the facial symmetry perception, followed by buccal and superiolabial areas.The clinicians should pay attention to the soft-tissue support in these areas when reconstructing the maxillary defect, especially large defect with orbital floor involved.


Asunto(s)
Colgajos Tisulares Libres , Procedimientos de Cirugía Plástica , Masculino , Femenino , Humanos , Adulto Joven , Adulto , Persona de Mediana Edad , Anciano , Muslo/cirugía , Colgajos Tisulares Libres/cirugía , Maxilar/cirugía , Percepción
9.
Clin Oral Investig ; 26(1): 863-874, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34263409

RESUMEN

OBJECTIVES: Mandibular advancement devices (MADs) are the main therapeutic alternative to continuous positive airway pressure for obstructive sleep apnea. Our aim was to evaluate the long-term dentoskeletal side effects of MADs and to identify the predictive factors for these side effects. MATERIALS AND METHODS: Patients from the Pays de la Loire cohort treated with a custom-made MAD for at least 1 year were included in this retrospective study. Digital cephalometric analyses were performed at baseline and at follow-up. RESULTS: We included a total of 117 patients, treated with a MAD for a median [interquartile range] of 4.6 [2.6-6.6] years. The main significant side effects were a decrease in overbite (- 0.5 ± 1 mm), overjet (- 0.7 ± 1 mm) and maxillary incisor inclination (- 2.5 ± 2.8°) and an increase in mandibular incisor inclination (+ 2.2 ± 2.7°). Subjective side effects were not linked to the observed dentoskeletal changes. Current smokers were at higher risk of overjet modifications. A pre-existing anterior open-bite was associated with a greater decrease in overbite. Treatment duration was associated with a more pronounced mandibular incisor proclination. Propulsion was negatively associated with maxillary incisor retroclination. CONCLUSIONS: Long-term dentoskeletal side effects were mainly moderate dental side effects. Some predictive factors were shown to be associated with more pronounced changes. Subjective side effects did not appear to be reliable tools to detect dentoskeletal side effects. CLINICAL RELEVANCE: Regular follow-up with clinical examination and regular radiographs is mandatory. The predictive factors could be of interest for a better selection of patients and to individualize follow-up.


Asunto(s)
Avance Mandibular , Apnea Obstructiva del Sueño , Cefalometría , Humanos , Estudios Retrospectivos , Sueño , Apnea Obstructiva del Sueño/terapia
10.
Sensors (Basel) ; 22(23)2022 Nov 23.
Artículo en Inglés | MEDLINE | ID: mdl-36501801

RESUMEN

Recent methods for automatic blood vessel segmentation from fundus images have been commonly implemented as convolutional neural networks. While these networks report high values for objective metrics, the clinical viability of recovered segmentation masks remains unexplored. In this paper, we perform a pilot study to assess the clinical viability of automatically generated segmentation masks in the diagnosis of diseases affecting retinal vascularization. Five ophthalmologists with clinical experience were asked to participate in the study. The results demonstrate low classification accuracy, inferring that generated segmentation masks cannot be used as a standalone resource in general clinical practice. The results also hint at possible clinical infeasibility in experimental design. In the follow-up experiment, we evaluate the clinical quality of masks by having ophthalmologists rank generation methods. The ranking is established with high intra-observer consistency, indicating better subjective performance for a subset of tested networks. The study also demonstrates that objective metrics are not correlated with subjective metrics in retinal segmentation tasks for the methods involved, suggesting that objective metrics commonly used in scientific papers to measure the method's performance are not plausible criteria for choosing clinically robust solutions.


Asunto(s)
Algoritmos , Redes Neurales de la Computación , Proyectos Piloto , Fondo de Ojo , Procesamiento de Imagen Asistido por Computador/métodos
11.
J Therm Biol ; 110: 103335, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36462874

RESUMEN

Working in cold environments can have a variety of negative consequences on health, efficiency, quality, safety, and performance. The present study investigates the risk of cold stress in petroleum transfer centers in Iran's northwestern cold regions. The proposed method by ISO-15743 (E) was used to assess the risk of cold stress. The activity level (M) was calculated using the ISO 8996:2021 standard. The evaluation of local cooling, contact of cold surfaces, and hand and face temperature was performed using ISO 11079, ISO 13732-3, and ISO 9886, respectively. During their work, 28 outdoor site men and mechanics as a case group and 8 operators as a control group put through subjective analysis. According to the findings, the mean Icl,r, IREQmin, and IREQneutral were 1.59 ± 0.33, 2.1 ± 0.44, and 2.43 ± 0.45, respectively. The mean equivalent chill temperature was -13.83 ± 5.45, and workers were at risk of local cooling stress at levels 1 and 2. The case group showed greater losses in finger skin temperatures after short term exposure to extremely cold environments than the control group (P < 0.001). Based on the questionnaire results a significant percentage of workers performing the activity during the winter have more difficulty. Prolonged general and local cold exposure can cause pain, numbness, and frostbite in site men and mechanics. Careful planning, training, extensive distribution of cold protective clothing, rest periods, a relatively short stay in the cold environment, and proper equipment can greatly reduce these hazards.


Asunto(s)
Respuesta al Choque por Frío , Petróleo , Masculino , Humanos , Irán , Medición de Riesgo , Frío
12.
J Obstet Gynaecol ; 42(6): 2260-2264, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35275042

RESUMEN

The aim of this retrospective study was to determine the prevalence of ovarian masses and calculate the diagnostic performance of the pattern recognition approach in ovarian pathology. A total of 1001 patients diagnosed with ovarian mass were included, of which 92.6% were diagnosed with ovarian pathology and the presence of a pathological result, while 7.4% of cases were diagnosed with functional ovarian cyst. The prevalence of ovarian malignancy was 15%. A specific ultrasound diagnosis was suggested in 62.9% of all cases, while sonographers did not explicitly provide a diagnosis in remaining cases. A subjective assessment showed 80.3% sensitivity (95% confidence interval (CI) 68.7-89.1) and 97.6% specificity (95% CI 96-98.6) in differentiating between benign and malignant ovarian masses. The sensitivity and specificity for the diagnosis of endometriotic cyst were 77.03% and 90.63% and 63.19% and 94.3% for mature cystic teratoma, respectively. In conclusion, assessment showed good performance in differentiating between benign and malignant ovarian mass and it was possible to diagnose several specific ovarian tumours. Impact StatementWhat is already known on this subject? Pattern recognition is an acceptable method for classifying ovarian mass, which exhibits specific morphological features on grey-scale ultrasonography, and can be used to predict nature and histological type.What do the results of this study add? Even in the hands of an expert examiner, there were a number of cases in which the diagnoses could not be specifically stated. Pattern recognition correctly classified 90.3% of ovarian masses as either benign or malignant and correctly provided specific histologic diagnoses after exclusion of unspecified diagnosis in 80.6% of all cases. The diagnostic performance of this approach was high in differentiating between benign and malignant ovarian mass and in diagnosing some specific ovarian pathologies.What are the implications of these findings for clinical practice and/or further research? A subjective assessment is simple and easy to use in clinical practice and has shown promising results in classifying benign and malignant ovarian mass. Moreover, it can also be used to make some specific diagnoses. However, specialised and experienced gynaecological ultrasound examiners are required to provide the most accurate diagnosis. Therefore, criteria to describe ultrasound features and convincing operators to make a definite diagnosis as often as possible should be encouraged. A prospective study to verify diagnostic performance of pattern recognition or comparing with other ultrasonographic diagnostic tools should be considered.


Asunto(s)
Enfermedades de los Anexos , Neoplasias Ováricas , Enfermedades de los Anexos/diagnóstico , Diagnóstico Diferencial , Femenino , Hospitales , Humanos , Neoplasias Ováricas/diagnóstico por imagen , Neoplasias Ováricas/epidemiología , Prevalencia , Estudios Prospectivos , Estudios Retrospectivos , Sensibilidad y Especificidad , Tailandia/epidemiología , Ultrasonografía
13.
Ultrasound Obstet Gynecol ; 57(3): 471-477, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-32621381

RESUMEN

OBJECTIVES: To assess the inter-rater agreement and reliability of using subjective pattern recognition for diagnosing endometrial cancer (EC) on ultrasound in women with postmenopausal bleeding (PMB). METHODS: This was a prospective cross-sectional study conducted at a gynecological rapid-access clinic, between October 2016 and December 2017, in which consecutive women with PMB and endometrial thickness of ≥ 4.5 mm on transvaginal ultrasound examination were included. Women on hormone replacement therapy or tamoxifen and those with a history of primary gynecological malignancy were excluded. Two raters independently performed ultrasound examinations, blinded to each other's findings, and classified women as having uniformly thickened endometrium, benign endometrial polyp or EC, using subjective pattern recognition. Inter-rater reliability of ultrasound diagnosis was assessed using Cohen's kappa (κ) statistic. All women subsequently underwent either outpatient endometrial biopsy, hysteroscopy or hysterectomy. RESULTS: Forty women were included in the study, with a median age of 61 (interquartile range (IQR), 57-69) years and a median endometrial thickness of 11.0 (IQR, 6.2-20.3) mm. Final histological analysis confirmed 16 (40%) women with EC, 16 (40%) with benign endometrial polyp, four (10%) with atrophic endometrium, three (8%) with proliferative endometrium and one (3%) with endometrial hyperplasia. Inter-rater agreement for the ultrasound diagnoses of uniformly thickened endometrium, benign endometrial polyp and EC was 14/16 (87.5%), 22/30 (73.3%) and 28/34 (82.4%), respectively; inter-rater reliability was good (κ = 0.69; 95% CI, 0.49-0.88). When the ultrasound diagnoses were grouped as either cancer or no cancer, inter-rater agreement was 85% and inter-rater reliability was good (κ = 0.78; 95% CI, 0.61-0.95). Rater A correctly identified 14/16 cases of EC and Rater B identified 15/16. EC was misdiagnosed as benign polyps on ultrasound in two women by Rater A and in one woman by Rater B. The overall accuracies of Rater A and Rater B in differentiating between benign endometrial pathologies and malignancy were 90% and 90%, respectively. CONCLUSIONS: Our results show good inter-rater reliability of subjective pattern recognition in diagnosing uniformly thickened endometrium, benign endometrial polyp and EC on ultrasound in women with PMB. Our findings should facilitate wider use of subjective pattern recognition in routine clinical practice. © 2020 International Society of Ultrasound in Obstetrics and Gynecology.


Asunto(s)
Detección Precoz del Cáncer/estadística & datos numéricos , Neoplasias Endometriales/diagnóstico por imagen , Ultrasonografía/estadística & datos numéricos , Hemorragia Uterina/diagnóstico por imagen , Hemorragia Uterina/patología , Anciano , Estudios Transversales , Detección Precoz del Cáncer/métodos , Hiperplasia Endometrial/complicaciones , Hiperplasia Endometrial/diagnóstico por imagen , Neoplasias Endometriales/complicaciones , Endometrio/diagnóstico por imagen , Endometrio/patología , Femenino , Humanos , Persona de Mediana Edad , Variaciones Dependientes del Observador , Pólipos/complicaciones , Pólipos/diagnóstico por imagen , Posmenopausia , Estudios Prospectivos , Reproducibilidad de los Resultados , Ultrasonografía/métodos , Enfermedades Uterinas/complicaciones , Enfermedades Uterinas/diagnóstico por imagen , Hemorragia Uterina/etiología
14.
Sensors (Basel) ; 21(8)2021 Apr 19.
Artículo en Inglés | MEDLINE | ID: mdl-33921877

RESUMEN

This paper deals with the impact of content on the perceived video quality evaluated using the subjective Absolute Category Rating (ACR) method. The assessment was conducted on eight types of video sequences with diverse content obtained from the SJTU dataset. The sequences were encoded at 5 different constant bitrates in two widely video compression standards H.264/AVC and H.265/HEVC at Full HD and Ultra HD resolutions, which means 160 annotated video sequences were created. The length of Group of Pictures (GOP) was set to half the framerate value, as is typical for video intended for transmission over a noisy communication channel. The evaluation was performed in two laboratories: one situated at the University of Zilina, and the second at the VSB-Technical University in Ostrava. The results acquired in both laboratories reached/showed a high correlation. Notwithstanding the fact that the sequences with low Spatial Information (SI) and Temporal Information (TI) values reached better Mean Opinion Score (MOS) score than the sequences with higher SI and TI values, these two parameters are not sufficient for scene description, and this domain should be the subject of further research. The evaluation results led us to the conclusion that it is unnecessary to use the H.265/HEVC codec for compression of Full HD sequences and the compression efficiency of the H.265 codec by the Ultra HD resolution reaches the compression efficiency of both codecs by the Full HD resolution. This paper also includes the recommendations for minimum bitrate thresholds at which the video sequences at both resolutions retain good and fair subjectively perceived quality.

15.
Int J Environ Sci Technol (Tehran) ; 18(6): 1591-1616, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-32952577

RESUMEN

This study presents a comprehensive and comparative analysis of weighting and multiple attribute decision-making (MADM) methods in the context of sustainable energy. As the selection problems of energy involve various conflicting attributes, MADM methods have been widely applied in addressing these issues. In this study, six weighting and seven MADM methods that constitute a total of 42 models are implemented to evaluate different weighting and multicriteria decision-making methods and determine the most efficient and sustainable energy option. To determine the weights of economic, environmental, socioeconomic, and technical attributes, two subjective methods-the analytic hierarchy process and best-worst method-and four objective methods-the criteria importance through intercriteria correlation, Shannon's entropy, standard deviation, and mean weight-are used. Thus, both expert evaluations and data-based assessments are considered. Using each attribute weight provided by the six methods, the ranking of electricity generation options for Turkey is obtained through seven MADM methods: the elimination and choice expressing the reality method, the weighted sum method, the weighted product method, the organization, rangement et synthese de donnes relationnelles (ORESTE) method, the technique for order performance by similarity to the ideal solution, the preference ranking organization method for the enrichment of evaluations, and the multiple criteria optimization compromise solution. Rankings obtained from all models are integrated through the Borda, Copeland, and grade average methods. The results indicate that hydro is the optimal electricity generation option, followed by onshore wind, solar PV, geothermal, natural gas, and coal.

16.
Clin Rehabil ; 34(2): 252-262, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-31775541

RESUMEN

OBJECTIVE: The aim of this study is to determine inter-rater, test-retest and intra-rater reproducibility and responsiveness of subjective assessment of upper limb associated reactions in people with acquired brain injury using (1) the 'Qualifiers Scale' of the International Classification of Functioning, Disability and Health Framework, and (2) visually estimated elbow flexion angle during walking. DESIGN: Observational study. SETTING: A brain injury rehabilitation centre, Melbourne, Australia. SUBJECTS: People with acquired brain injury and upper limb associated reactions and experienced neurological physiotherapists. MAIN MEASURES: The Qualifiers Scale applied to individual upper limb joints and global associated reaction on a 5-point scale (0-4), a summed upper limb severity score and visually estimated elbow flexion angle. RESULTS: A total of 42 people with acquired brain injury (mean age: 48.4 ± 16.5 years) were videoed walking at self-selected and fast speeds. A subset of 30 chronic brain injury participants (mean time post injury: 8.2 ± 9.3 years) were reassessed one week later for retest reproducibility. Three experienced neurological physiotherapists (mean experience: 22.7 ± 9.1 years) viewed these videos and subjectively rated the upper limb associated reactions. Strong-to-very strong test-retest, intra- and inter-rater reproducibility was found for elbow flexion angle (ICC > 0.86) and the Qualifiers Scale applied to global and individual upper limb joints (ICC > 0.60). Responsiveness of change from self-selected to fast walking speed (mean increase 0.46 m/s) was highest for elbow flexion angle (effect size = 0.83) and low-to-moderate for the Qualifiers Scale. CONCLUSION: Subjectively rated associated reactions during walking demonstrated strong reproducibility and moderate responsiveness to speed change. The Qualifiers Scale and elbow flexion angle can both subjectively quantify associated reactions during walking in a clinical setting.


Asunto(s)
Lesiones Encefálicas/rehabilitación , Extremidad Superior/fisiopatología , Velocidad al Caminar , Adulto , Australia , Lesiones Encefálicas/fisiopatología , Evaluación de la Discapacidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Modalidades de Fisioterapia , Reproducibilidad de los Resultados
17.
J Ultrasound Med ; 39(5): 939-947, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-31782548

RESUMEN

OBJECTIVES: The study's main aim was to evaluate the relationship between the performance of predictive models for differential diagnoses of ovarian tumors and levels of diagnostic confidence in subjective assessment (SA) with ultrasound. The second aim was to identify the parameters that differentiate between malignant and benign tumors among tumors initially diagnosed as uncertain by SA. METHODS: The study included 250 (55%) benign ovarian masses and 201 (45%) malignant tumors. According to ultrasound findings, the tumors were divided into 6 groups: certainly benign, probably benign, uncertain but benign, uncertain but malignant, probably malignant, and certainly malignant. The performance of the risk of malignancy index, International Ovarian Tumor Analysis assessment of different neoplasias in the adnexa model, and International Ovarian Tumor Analysis logistic regression model 2 was analyzed in subgroups as follows: SA-certain tumors (including certainly benign and certainly malignant) versus SA-probable tumors (probably benign and probably malignant) versus SA-uncertain tumors (uncertain but benign and uncertain but malignant). RESULTS: We found a progressive decrease in the performance of all models in association with the increased uncertainty in SA. The areas under the receiver operating characteristic curve for the risk of malignancy index, logistic regression model 2, and assessment of different neoplasias in the adnexa model decreased between the SA-certain and SA-uncertain groups by 20%, 28%, and 20%, respectively. The presence of solid parts and a high color score were the discriminatory features between uncertain but benign and uncertain but malignant tumors. CONCLUSIONS: Studies are needed that focus on the subgroup of ovarian tumors that are difficult to classify by SA. In cases of uncertain tumors by SA, the presence of solid components or a high color score should prompt a gynecologic oncology clinic referral.


Asunto(s)
Modelos Teóricos , Neoplasias Ováricas/diagnóstico por imagen , Ultrasonografía/métodos , Adulto , Anciano , Diagnóstico Diferencial , Femenino , Humanos , Persona de Mediana Edad , Ovario/diagnóstico por imagen , Valor Predictivo de las Pruebas , Reproducibilidad de los Resultados , Estudios Retrospectivos , Sensibilidad y Especificidad , Incertidumbre
18.
BMC Palliat Care ; 19(1): 143, 2020 Sep 16.
Artículo en Inglés | MEDLINE | ID: mdl-32938447

RESUMEN

BACKGROUND: It is recommended that patients with progressive neurological disease (PND) receive general and specialized palliative care. The purpose of this study was to determine the effect of neuropalliative care on quality of life (QoL) and satisfaction with provided care in both patients with PND in advanced stages of disease and their family caregivers. METHODS: The sample consisted of 151 patients with PND and 140 family caregivers. The PNDQoL questionnaire was used for data collection. Patients and family caregivers completed the questionnaires both before and 3 months after the intervention. RESULTS: Before intervention, there were no statistically significant differences in the individual domains of QoL in patients and family caregivers in either the intervention or the control group. After intervention, differences were identified in the sample of patients in the domains of symptoms burden (p < 0.001), emotional (p < 0 .001), social functioning (p = 0.046), spiritual area (nonreligious) (p = 0.050), and in QoL. In the sample of family caregivers, there were differences in the domains of symptoms burden (p < 0.001), emotional functioning (p = 0.016), spiritual area (nonreligious) (p = 0.042), and in the assessment of health (p = 0.002), and QoL (p = 0.002). Patients and family caregivers from the intervention group evaluated their satisfaction with the quality of care provided significantly more positively in all five analyzed domains. CONCLUSION: The provision of neuropalliative care to patients with advanced stages of PND helped to maintain and slightly improve their QoL, and symptoms burden, and resulted in a more positive assessment of satisfaction with the quality of care provided.


Asunto(s)
Enfermedades del Sistema Nervioso/enfermería , Enfermería en Neurociencias/normas , Cuidados Paliativos/normas , Satisfacción del Paciente , Adulto , Anciano , Anciano de 80 o más Años , Cuidadores/psicología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Enfermedades del Sistema Nervioso/complicaciones , Enfermería en Neurociencias/estadística & datos numéricos , Cuidados Paliativos/métodos , Cuidados Paliativos/psicología , Calidad de Vida/psicología , Encuestas y Cuestionarios
19.
Technol Disabil ; 32(4): 285-294, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-34421288

RESUMEN

BACKGROUND: Dynamic exoskeleton orthoses provide assistance needed to complete movements that would otherwise be impossible after stroke. Beyond the demonstration of their effectiveness, the subjective experience of dynamic orthoses also needs to be considered. OBJECTIVE: To support functional recovery after stroke through the development of Hand-TaPS (Task Practice after Stroke), an instrument to evaluate dynamic hand orthoses in home therapy. METHODS: Dynamic hand orthosis subject matter experts (N = 14), professionals and consumers, considered the items of PYTHEIA, a valid and reliable instrument merging well-tested, assistive technology (AT) assessment items with those tuned to the greater complexity of emerging technologies. Experts reflected on how each item aligned with their personal experience of dynamic orthosis use. Interpretative Phenomenological Analysis guided identification of themes. RESULTS: Four themes (5/20 items) appraised highly relevant for Hand-TaPS. The remaining eight themes (15/20 items) were deemed in need of modification. CONCLUSIONS: Dynamic hand orthoses constitute a special case of AT; the assistance they provide targets therapy, not ADLs. Our work to develop Hand-TaPS provides a clear example of the theoretical difference between rehabilitative and assistive technology and underscores the importance of consideration of how a device is used in its assessment.

20.
Stomatologiia (Mosk) ; 99(2): 50-54, 2020.
Artículo en Ruso | MEDLINE | ID: mdl-32441076

RESUMEN

The aim of the study was providing rationale for using a new form of Ketorol Express for pain relief in outpatient dental practice. The study comprised 85 patients with an average age of 43.2 years, who were prescribed a three-day course of Ketorol Express therapy after a complex traumatic tooth extraction. Three different visual-analog scales were used to assess the severity of pain, the patient's General well-being, and the doctor's General well-being. After treatment with dispersed Ketorol Express tablets, the severity of the pain syndrome decreased from 4 to 1.8 points within three days. Anesthesia occurred on average in 10 minutes. This therapy was safe and well tolerated. There were no one serious adverse events, and no one patient stopped therapy due to side effects.


Asunto(s)
Manejo del Dolor , Dolor Postoperatorio , Adulto , Método Doble Ciego , Humanos , Dimensión del Dolor , Extracción Dental
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