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1.
Ann Biomed Eng ; 50(4): 401-412, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35201548

RESUMO

A recent innovation in scoliosis monitoring is the use of ultrasonography, which provides true 3D information in one scan and does not emit ionizing radiation. Measuring the severity of scoliosis on ultrasonographs requires identifying lamina pairs on the most tilted vertebrae, which is difficult and time-consuming. To expedite and automate measurement steps, this paper detailed an automatic convolutional neural network-based algorithm for identifying the laminae on 3D ultrasonographs. The predicted laminae were manually paired to measure the lateral spinal curvature on the coronal view, called the Cobb angle. In total, 130 spinal ultrasonographs of adolescents with idiopathic scoliosis recruited from a scoliosis clinic were selected, with 70 for training and 60 for testing. Data augmentation increased the effective training set size to 140 ultrasonographs. Semi-automatic Cobb measurements were compared to manual measurements on the same ultrasonographs. The semi-automatic measurements demonstrated good inter-method reliability (ICC3,1 = 0.87) and performed better on thoracic (ICC3,1 = 0.91) than lumbar curves (ICC3,1 = 0.81). The mean absolute difference and standard deviation between semi-automatic and manual was 3.6° ± 3.0°. In conclusion, the semi-automatic method to measure the Cobb angle on ultrasonographs is feasible and accurate. This is the first algorithm that automates steps of Cobb angle measurement on ultrasonographs.


Assuntos
Escoliose , Coluna Vertebral , Adolescente , Humanos , Redes Neurais de Computação , Reprodutibilidade dos Testes , Escoliose/diagnóstico por imagem , Coluna Vertebral/diagnóstico por imagem , Ultrassonografia/métodos
2.
Tomography ; 8(3): 1270-1276, 2022 05 06.
Artigo em Inglês | MEDLINE | ID: mdl-35645391

RESUMO

The relationship between the anorectal angle (ARA) and the levator ani muscle (LAM) is well known. In this study, we aimed to demonstrate that the ARA changes when LAM avulsion occurs after vaginal delivery. This was a secondary, observational retrospective study with data obtained from three previous studies. Using transperineal ultrasound, the presence of avulsion was assessed when abnormal insertion of the LAM was observed in three central slices. In addition, the ARA was assessed in the midsagittal plane (at rest, in Valsalva and at maximum contraction) as the angle between the posterior border of the distal part of the rectum and the central axis of the anal canal. The ARA was higher in patients with bilateral LAM avulsion than in patients without LAM avulsion at rest (131.8 ± 14.1 vs. 136.2 ± 13.8), in Valsalva (129.4 ± 15.5 vs. 136.5 ± 14.4) and at maximum contraction (125.7 ± 15.5 vs. 132.3 ± 13.2). The differences between both groups expressed as the odds ratio (OR) adjusted for maternal age were 1.031 (95% confidence interval (CI), 1.001-1.061; p = 0.041) at rest, 1.036 (95% CI, 1.008-1.064; p = 0.012) in Valsalva and 1.031 (95% CI, 1.003-1.059; p = 0.027) at maximum contraction. In conclusion, LAM avulsion produces an increase in the ARA at rest, during contraction and in Valsalva, especially in cases of bilateral LAM avulsion.


Assuntos
Canal Anal , Diafragma da Pelve , Canal Anal/diagnóstico por imagem , Parto Obstétrico , Feminino , Humanos , Diafragma da Pelve/diagnóstico por imagem , Gravidez , Estudos Retrospectivos , Ultrassonografia
3.
Phys Med Biol ; 67(13)2022 Jun 22.
Artigo em Inglês | MEDLINE | ID: mdl-35654033

RESUMO

Objective. Arterial dispersion ultrasound vibrometry (ADUV) relies on the use of guided waves in arterial geometries for shear wave elastography measurements. Both the generation of waves through the use of acoustic radiation force (ARF) and the techniques employed to infer the speed of the resulting wave motion affect the spectral content and accuracy of the measurement. In particular, the effects of the shape and location of the ARF beam in ADUV have not been widely studied. In this work, we investigated how such variations of the ARF beam affect the induced motion and the measurements in the dispersive modes that are excited.Approach.The study includes an experimental evaluation on an arterial phantom and anin vivovalidation of the observed trends, observing the two walls of the waveguide, simultaneously, when subjected to variations in the ARF beam extension (F/N) and focus location.Main results.Relying on the theory of guided waves in cylindrical shells, the shape of the beam controls the selection and nature of the induced modes, while the location affects the measured dispersion curves (i.e. variation of phase velocity with frequency or wavenumber, multiple modes) across the waveguide walls.Significance.This investigation is important to understand the spectral content variations in ADUV measurements and to maximize inversion accuracy by tuning the ARF beam settings in clinical applications.


Assuntos
Técnicas de Imagem por Elasticidade , Acústica , Técnicas de Imagem por Elasticidade/métodos , Imagens de Fantasmas , Ultrassonografia
4.
BMC Endocr Disord ; 22(1): 145, 2022 May 31.
Artigo em Inglês | MEDLINE | ID: mdl-35642030

RESUMO

BACKGROUND: To evaluate the diagnostic value of American College of Radiology (ACR) score and ACR Thyroid Imaging Report and Data System (TI-RADS) for benign nodules, medullary thyroid carcinoma (MTC) and papillary thyroid carcinoma (PTC) through comparing with Kwak TI-RADS. METHODS: Five hundred nine patients diagnosed with PTC, MTC or benign thyroid nodules were included and classified into the benign thyroid nodules group (n = 264), the PTC group (n = 189) and the MTC group (n = 56). The area under the curve (AUC) values were analyzed and the receiver operator characteristic (ROC) curves were drawn to compare the diagnostic efficiencies of ACR score, ACR TI-RADS and KWAK TI-RADS on benign thyroid nodules, MTC and PTC. RESULTS: The AUC values of ACR score, ACR TI-RADS and Kwak TI-RADS for distinguishing malignant nodules from benign nodules were 0.914 (95%CI: 0.886-0.937), 0.871 (95%CI: 0.839-0.899) and 0.885 (95%CI: 0.854-0.911), respectively. In distinguishing of patients with MTC from PTC, the AUC values of ACR score, ACR TI-RADS and Kwak TI-RADS were 0.650 (95%CI: 0.565-0.734), 0.596 (95%CI: 0.527-0.664), and 0.613 (95%CI: 0.545-0.681), respectively. The AUC values of ACR score, ACR TI-RADS and Kwak TI-RADS for the discrimination of patients with MTC, PTC or benign nodules from patients without MTC, PTC or benign nodules were 0.899 (95%CI: 0.882-0.915), 0.865 (95%CI: 0.846-0.885), and 0.873 (95%CI: 0.854-0.893), respectively. CONCLUSION: The ACR score performed the best, followed ex aequo by the ACR and Kwak TI-RADS in discriminating patients with malignant nodules from benign nodules and patients with MTC from PTC.


Assuntos
Radiologia , Neoplasias da Glândula Tireoide , Nódulo da Glândula Tireoide , Carcinoma Neuroendócrino , Humanos , Estudos Retrospectivos , Câncer Papilífero da Tireoide/diagnóstico por imagem , Neoplasias da Glândula Tireoide/diagnóstico por imagem , Neoplasias da Glândula Tireoide/patologia , Nódulo da Glândula Tireoide/diagnóstico por imagem , Nódulo da Glândula Tireoide/patologia , Ultrassonografia/métodos , Estados Unidos
5.
Sensors (Basel) ; 22(11)2022 May 26.
Artigo em Inglês | MEDLINE | ID: mdl-35684646

RESUMO

The COVID-19 pandemic has brought unprecedented extreme pressure on the medical system due to the physical distance policy, especially for procedures such as ultrasound (US) imaging, which are usually carried out in person. Tele-operation systems are a promising way to avoid physical human-robot interaction (pHRI). However, the system usually requires another robot on the remote doctor side to provide haptic feedback, which makes it expensive and complex. To reduce the cost and system complexity, in this paper, we present a low-cost, easy-to-use, dual-mode pHRI-teleHRI control system with a custom-designed hybrid admittance-force controller for US imaging. The proposed system requires only a tracking camera rather than a sophisticated robot on the remote side. An audio feedback is designed for replacing haptic feedback on the remote side, and its sufficiency is experimentally verified. The experimental results indicate that the designed hybrid controller can significantly improve the task performance in both modes. Furthermore, the proposed system enables the user to conduct US imaging while complying with the physical distance policy, and allows them to seamlessly switch modes from one to another in an online manner. The novel system can be easily adapted to other medical applications beyond the pandemic, such as tele-healthcare, palpation, and auscultation.


Assuntos
COVID-19 , Robótica , COVID-19/diagnóstico por imagem , Retroalimentação , Humanos , Pandemias , Robótica/métodos , Ultrassonografia
6.
Comput Math Methods Med ; 2022: 3232670, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35693258

RESUMO

This study was aimed at investigating the effect of an optimized image processing algorithm in ultrasound images and the influence of resection of lumbar disc nucleus pulposus in spinal surgery under the guidance of ultrasound images on the neurological safety of patients. A total of 60 patients with lumbar disc herniation were selected and divided randomly into the control group and observation group. Patients from the control group were treated with resection of lumbar disc nucleus pulposus by an X-ray-guided foraminal microscope, and patients from the observation group underwent the ultrasound image-guided surgeries with an optimized image processing algorithm. Then, the treatment of patients from the two groups was compared. The results showed that the radiotherapy time in the control group was 120 ± 6.3 min and the radiotherapy dose was 129 ± 10.3 min/sec, while the radiotherapy time in the observation group was 4.5 ± 1.2 min and the radiotherapy dose was 22 ± 7.7 min/sec. The time and dose of radiotherapy in the observation group were significantly lower than those in the control group (P < 0.05). In the control group, the numbers of significant effective cases, effective cases, and ineffective cases were 8, 16, and 6, respectively, while those in the observation group were 12, 18, and 0, respectively. The comparison between the groups showed that the number of effective cases and the number of effective cases in the observation group were significantly higher than those in the control group, and the number of ineffective cases was significantly lower than that in the control group (P < 0.05). In conclusion, ultrasound-guided percutaneous foraminal lumbar discectomy could improve patients' clinical symptoms, promote clinical efficacy, and reduce postoperative pain symptoms, thereby accelerating the postoperative rehabilitation of patients. Moreover, it was extremely safe for the nerves.


Assuntos
Discotomia Percutânea , Vértebras Lombares , Núcleo Pulposo , Algoritmos , Discotomia Percutânea/efeitos adversos , Discotomia Percutânea/métodos , Humanos , Vértebras Lombares/diagnóstico por imagem , Vértebras Lombares/cirurgia , Núcleo Pulposo/diagnóstico por imagem , Núcleo Pulposo/cirurgia , Resultado do Tratamento , Ultrassonografia
7.
Ir Med J ; 115(5): 598, 2022 May 25.
Artigo em Inglês | MEDLINE | ID: mdl-35696288

RESUMO

Aims Developmental dysplasia of the hip (DDH) is an important cause of disability in children and young adults. Early diagnosis and treatment can help avoid more invasive interventions and long-term morbidity. This study examines the ultrasound screening programme conducted in University Hospital Waterford (UHW), and the outcomes for infants with DDH in the Southeast of Ireland. Methods We conducted an audit of all the DDH screening ultrasounds performed in UHW in the year 2020, a total of 992 infants. Data included referral and ultrasound times, screening results, interventions, and outcomes. Results Of those screened, 255 (26%) were referred to the Orthopaedic clinic, with a significant female majority of nearly 3:1. At the time of writing, only two infants were ultimately referred for further management of persistent DDH, the rest being successfully treated by less invasive interventions such as harnessing and bracing. There were no babies scanned within the recommended 6 weeks who later presented with a dislocated hip or required tertiary referral for DDH management. Conclusion The ultrasound screening programme in UHW is shown to be successful in the prompt diagnosis and early treatment of DDH. This plays a significant role in avoiding the lifelong disabling outcomes of untreated DDH, and the invasive surgical procedures required in the management of late-stage disease.


Assuntos
Displasia do Desenvolvimento do Quadril , Luxação Congênita de Quadril , Criança , Feminino , Luxação Congênita de Quadril/diagnóstico por imagem , Luxação Congênita de Quadril/epidemiologia , Luxação Congênita de Quadril/terapia , Humanos , Lactente , Recém-Nascido , Triagem Neonatal/métodos , Exame Físico/métodos , Ultrassonografia
8.
Pediatr Int ; 64(1): e15206, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35704459

RESUMO

BACKGROUND: Small bowel capsule endoscopy (SBCE) for Crohn's disease is useful; however, its use has some limitations, such as invasiveness when endoscopic assistance is required in patients who cannot swallow the capsule, and the burden of interpretation on a physician. In contrast, intestinal ultrasonography (IUS) is a non-invasive modality for children. The purpose of this study is to evaluate the accuracy of IUS for pediatric patients with established Crohn's disease. METHODS: Small bowel capsule endoscopy and IUS findings from the same period in pediatric patients with established Crohn's disease were analyzed retrospectively. First, we compared the Lewis score (LS), small bowel endoscopic activity, and IUS findings by small bowel wall thickness (SBWT) and mesenteric lymph node size (MLNS). Second, we compared the performance of IUS findings with those of some biomarkers. RESULTS: In 22 procedures, SBWT and MLNS were correlated with LS (r = 0.52, P < 0.05, and r = 0.45, P < 0.05, respectively). Small bowel wall thickness, erythrocyte sedimentation rate, and fecal calprotectin levels had the highest accuracy (81.8%, 81.8%, and 81.8%, respectively). The combination of SBWT and MLNS had the highest positive predictive value and negative predictive value (100% and 83.3%, respectively). CONCLUSIONS: Intestinal ultrasonography findings, including SBWT and MLNS, are useful for monitoring small bowel lesions in pediatric patients with established Crohn's disease. We suggest first evaluating small bowel inflammation by IUS in pediatric patients with Crohn's disease before SBCE because IUS is less invasive than SBCE.


Assuntos
Endoscopia por Cápsula , Doença de Crohn , Endoscopia por Cápsula/métodos , Criança , Doença de Crohn/diagnóstico por imagem , Humanos , Estudos Retrospectivos , Ultrassonografia
9.
Zhongguo Dang Dai Er Ke Za Zhi ; 24(5): 591-595, 2022 May 15.
Artigo em Chinês | MEDLINE | ID: mdl-35644202

RESUMO

OBJECTIVES: To study the clinical characteristics of ultrasound-guided central venous catheterization at various sites in infants with shock, and to explore how to quickly select the site for central venous puncture in infants with shock. METHODS: The medical data of 112 infants who were diagnosed with shock and underwent central venous catheterization in the Pediatric Intensive Care Unit, Dongguan Children's Hospital Affiliated to Guangdong Medical University, from January 2016 to December 2020 were reviewed retrospectively. The patients were divided into an ultrasound group (n=70) and a body surface location group (n=42) according to whether the catheterization was carried out under ultrasound guidance. The application of ultrasound-guided catheterization at various sites in infants was summarized and analyzed, and the success rate of one-time puncture, overall success rate, catheterization time, and complications were compared between these sites. RESULTS: Compared with the body surface location group, the ultrasound group had a significantly higher success rate of one-time puncture, a significantly shorter catheterization time, and a significantly reduced incidence rate of complications in internal jugular vein and femoral vein catheterizations (P<0.05). In the ultrasound group, the proportion of internal jugular vein catheterization was the highest (51%, 36/70), followed by femoral vein catheterization (33%, 23/70), and subclavian vein catheterization (16%, 11/70). For the comparison between different puncture sites under ultrasound guidance, internal jugular vein catheterization showed the shortest time of a successful catheterization [5.5 (5.0, 6.5) minutes] (P<0.05). There was no significant difference in the incidence rate of complications among the different puncture sites groups (P>0.05). CONCLUSIONS: In infants with shock, ultrasound-guided internal jugular vein catheterization can be used as the preferred catheterization method for clinicians.


Assuntos
Cateterismo Venoso Central , Cateterismo Venoso Central/efeitos adversos , Criança , Humanos , Lactente , Veias Jugulares/diagnóstico por imagem , Estudos Retrospectivos , Ultrassonografia , Ultrassonografia de Intervenção
10.
Med Sci Monit ; 28: e936368, 2022 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-35668611

RESUMO

BACKGROUND The aim of this study was to investigate the performance of Chinese Thyroid Imaging Reporting and Data System (C-TIRADS) category combined with contrast-enhanced ultrasound (CEUS) in diagnosing thyroid cancer. MATERIAL AND METHODS From October 2020 to March 2021, 116 thyroid nodules from 113 patients who underwent conventional ultrasound and CEUS examinations at the General Hospital of Northern Theater Command were reviewed. In the conventional ultrasound examination, thyroid nodules were categorized by C-TIRADS. The nodules were reclassified based on CEUS scoring, then a combined diagnosis was made. The pathological results were taken as the criterion standard. To compare the diagnostic performance of the 3 methods according to the receiver operating characteristic curves produced for thyroid nodules. RESULTS After chi-square test, the 7 characteristics of enhancement patterns, internal homogeneity, wash-in, wash-out, ring enhancement, morphology, and contrast agent retention characteristics (CAR) were statistically different between malignant and benign tumors; A high diagnostic performance was demonstrated by C-TIRADS combined with CEUS in diagnosing thyroid cancer. The area under the curve (AUC), the sensitivity, and the specificity of C-TIRADS combined with CEUS for diagnosing thyroid cancer were 0.918 (95% CI: 0.852-0.961), 80.9% (95% CI: 69.1-89.8%), and 90.6% (95% CI: 79.3-96.9%), respectively. The AUC of C-TIRADS alone was significantly lower than that of C-TIRADS combined with CEUS (P=0.0056), while there was no significant difference between CEUS and C-TIRADS combined with CEUS (P=0.59). CONCLUSIONS The combined method of C-TIRADS and CEUS, with reduced rate of thyroid nodule biopsy and clinical application value, has higher diagnostic accuracy than the single diagnosis method.


Assuntos
Neoplasias da Glândula Tireoide , Nódulo da Glândula Tireoide , Diagnóstico Diferencial , Humanos , Estudos Retrospectivos , Neoplasias da Glândula Tireoide/diagnóstico por imagem , Neoplasias da Glândula Tireoide/patologia , Nódulo da Glândula Tireoide/diagnóstico por imagem , Nódulo da Glândula Tireoide/patologia , Ultrassonografia/métodos
11.
Comput Math Methods Med ; 2022: 9128208, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35669363

RESUMO

This research aimed to explore the curative effect of short-term insulin pump in the treatment of type 2 diabetes mellitus (T2DM) patients with lower extremity arterial disease (LEAD) based on ultrasonography. 422 patients (220 males and 202 females) with T2DM in the hospital were selected, and they were randomly divided into control group (n = 211, oral hypoglycemic drugs or diet control, appropriate exercise to lower blood glucose) and experimental group (n = 211, insulin pump was used to reduce blood glucose). After 2 weeks, the therapeutic effect was evaluated by ultrasonography. The results showed that after two weeks of treatment, the difference in lumen intima between the two groups was statistically significant (P < 0.05). The intima-media thickness (IMT) values of the experimental group were 0.83 ± 0.03 mm, 0.62 ± 0.03 mm, and 0.41 ± 0.04 mm, respectively, which were significantly different from those of the control group (1.62 ± 0.54 mm, 1.23 ± 0.14 mm, and 0.78 ± 0.11 mm) (P < 0.05). There was obvious difference in low-density lipoprotein cholesterol (LDL-C) level between the experimental group (2.22 ± 0.46 mmol/L) and the control group (3.21 ± 0.62 mmol/L) (P < 0.05). The LEAD score of the experimental group was 5.51 ± 1.11, which was significantly different from that of the control group (7.08 ± 2.73) (P < 0.05). There was clear difference in LEAD score between the two groups under different course of disease (CD) (P < 0.05). Studies indicated that short-term application of insulin pump therapy could effectively improve the pathological changes of lower limbs in patients with T2DM, which had clinical application value.


Assuntos
Diabetes Mellitus Tipo 2 , Insulinas , Glicemia , Espessura Intima-Media Carotídea , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/tratamento farmacológico , Feminino , Humanos , Insulina , Insulinas/uso terapêutico , Extremidade Inferior/patologia , Masculino , Ultrassonografia
15.
Curr Opin Crit Care ; 28(3): 322-330, 2022 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-35653254

RESUMO

PURPOSE OF REVIEW: Due to heart, lung and diaphragm interactions during weaning from mechanical ventilation, an ultrasound integrated approach may be useful in the detection of dysfunctions potentially leading to weaning failure. In this review, we will summarize the most recent advances concerning the ultrasound applications relevant to the weaning from mechanical ventilation. RECENT FINDINGS: The role of ultrasonographic examination of heart, lung and diaphragm has been deeply investigated over the years. Most recent findings concern the ability of lung ultrasound in detecting weaning induced pulmonary edema during spontaneous breathing trial. Furthermore, in patients at high risk of cardiac impairments, global and anterolateral lung ultrasound scores have been correlated with weaning and extubation failure, whereas echocardiographic indexes were not. For diaphragmatic ultrasound evaluation, new indexes have been proposed for the evaluation of diaphragm performance during weaning, but further studies are needed to validate these results. SUMMARY: The present review summarizes the potential role of ultrasonography in the weaning process. A multimodal integrated approach allows the clinician to comprehend the pathophysiological processes of weaning failure.


Assuntos
Respiração Artificial , Desmame do Respirador , Extubação , Diafragma/diagnóstico por imagem , Humanos , Respiração Artificial/efeitos adversos , Ultrassonografia/métodos , Desmame do Respirador/efeitos adversos , Desmame do Respirador/métodos
16.
Radiol Clin North Am ; 60(4): 605-616, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35672093

RESUMO

Knee osteoarthritis is rising in prevalence, and more imaging studies are being requested to evaluate these patients. Although conventional radiographs of the knee are the most widely requested and available studies, other imaging modalities such as MRI, CT, and ultrasound may also be used. This article reviews commonly used imaging modalities, advantages and limitations of each, and their clinical applicability in diagnosing and monitoring knee osteoarthritis. New and advanced imaging techniques are also discussed as possible methods of early diagnosis and improved understanding of osteoarthritis pathophysiology.


Assuntos
Osteoartrite do Joelho , Humanos , Articulação do Joelho/diagnóstico por imagem , Imageamento por Ressonância Magnética/métodos , Osteoartrite do Joelho/diagnóstico por imagem , Radiografia , Ultrassonografia/métodos
17.
BMC Surg ; 22(1): 221, 2022 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-35672718

RESUMO

BACKGROUND: The purpose of the present study was to evaluate the clinical effectiveness of ultrasonography-guided needle release of A1 pulley combined with corticosteroid injection by comparing it with ultrasound-guided needle release of the A1 pulley alone. METHODS: A total of 49 patients (55 fingers, thumb) with trigger fingers were included in this retrospective study. Twenty-seven fingers were treated with ultrasound-guided needle release of the A1 pulley alone (monotherapy group), and 28 fingers were treated with needle release of the A1 pulley combined with corticosteroid injection (combination group). Visual analog scale (VAS), Froimson scale, postoperative recurrence rate, and thickness of A1 pulley at baseline, Week-2, Week-12, and Month-6 were recorded. RESULTS: Higher clinical cure rates were observed in the combination group at Week-2 after treatment among patients with the Froimson scale Grade III and IV (p < 0.05). Among Froimson scale Grade IV patients, the combination group had a significantly thinner thickness of A1 pulley and better articular pain relief at Week-2 (all p < 0.05). No significant differences were found in the clinical cure rate, the thickness of the A1 pulley, articular pain relief, and recurrence rate between the two groups at Week-12 and Month-6 (all p > 0.05). CONCLUSIONS: Ultrasonography-guided needle release of A1 pulley plus corticosteroid injection was superior to ultrasonography-guided A1 pulley needle release alone during early-stage treatment of severe patients with trigger fingers. Moreover, ultrasonography-guided A1 pulley needle release combined with corticosteroid injection narrows the thickness of the A1 pulley. It is necessary to carry out preoperative evaluation and individualized treatment for patients of various severities.


Assuntos
Dedo em Gatilho , Corticosteroides/uso terapêutico , Humanos , Dor , Estudos Retrospectivos , Dedo em Gatilho/diagnóstico por imagem , Dedo em Gatilho/tratamento farmacológico , Dedo em Gatilho/cirurgia , Ultrassonografia , Ultrassonografia de Intervenção
18.
Medicine (Baltimore) ; 101(24): e29505, 2022 Jun 17.
Artigo em Inglês | MEDLINE | ID: mdl-35713460

RESUMO

BACKGROUND: Earlier studies have shown that the superb microvascular imaging (SMI) can detect tumor angiogenesis to distinguish thyroid nodules, but there is no systematic review. This meta-analysis aimed to identify the accuracy of ultrasound SMI for the diagnosis of thyroid nodules. METHODS: We searched PubMed, Cochrane Library, and CBM databases. A meta-analysis was conducted using STATA version 14.0 and Meta-Disc version 1.4 software. We calculated the summary statistics for sensitivity, specificity, positive and negative likelihood ratio (LR+/LR-), diagnostic odds ratio, and the synthetic receiver operating characteristic curve. Data will be pooled by either a fixed-effects model or a random-effects model according to the results of heterogeneity identification. RESULTS: 11 studies that met the inclusion criteria were included in this meta-analysis. The quality assessment of the study of diagnostic accuracy studies scores of all included studies were ≥22. A total of 1003 thyroid malignant nodules and 957 thyroid benign nodules were assessed. The main outcome included: the pooled sensitivity was 0.81 (95% confidence intervals (CI) = 0.79-0.84), and the pooled specificity was 0.86 (95% CI = 0.84-0.88); the pooled LR+ was 5.79 (95% CI = 4.44-7.54), and the pooled negative LR- was 0.23 (95% CI = 0.20-0.26); the pooled diagnostic odds ratio of SMI in the diagnosis of thyroid nodules was 26.84 (95% CI = 19.13-37.60). The area under the synthetic receiver operating characteristic curve was 0.89 (95% CI = 0.86-0.91). We found no evidence for publication bias (t = 0.72, P = .49). CONCLUSION: Our meta-analysis indicates that SMI may have high diagnostic accuracy in distinguishing benign and malignant thyroid nodules. SYSTEMATIC REVIEW REGISTRATION: INPLASY202080084.


Assuntos
Nódulo da Glândula Tireoide , Diagnóstico Diferencial , Humanos , Razão de Chances , Curva ROC , Sensibilidade e Especificidade , Nódulo da Glândula Tireoide/diagnóstico por imagem , Nódulo da Glândula Tireoide/patologia , Ultrassonografia/métodos
20.
Comput Intell Neurosci ; 2022: 3557994, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35720883

RESUMO

This study was aimed to explore the anesthesia, analgesia, and nursing intervention scheme for elderly patients undergoing the operation of intertrochanteric fracture of femur under the guidance of ultrasound optimized by blind deblurring algorithm. Fifty elderly patients undergoing intertrochanteric femoral surgery were randomly enrolled into control group (tracheal intubation intravenous anesthesia + routine nursing) and experimental group (ultrasound-guided nerve block anesthesia + comprehensive nursing based on blind deblurring algorithm), with 25 patients in each group. The effects of anesthesia and recovery were evaluated in the two groups. The results showed that the image evaluation index of blind deblurring algorithm was superior to other algorithms (BM3D, DnCNN, and Red-Net), which improved the quality of ultrasound imaging and was more conducive to intraoperative anesthesia guidance. At the beginning and end of intubation and operation, the fluctuation range of mean arterial pressure (MAP) and heart rate (HR) in the experimental group was lower than that in the control group. The maintenance time of sensory and motor anesthesia block (7.53 ± 1.47 h, 5.45 ± 1.36 h) was longer than that of control group (3.38 ± 1.26 h, 3.02 ± 1.31 h). Visual Analogue Scale/Score (VAS) scores at 6 h, 12 h, and 24 h after surgery were lower than those in the control group. The effective rate of nursing and the incidence of complications (92% and 8%) were better than the control group (80% and 16%), and the difference was statistically significant (P < 0.05). In summary, the optimization effect of blind deblurring algorithm was good, which can improve the quality of ultrasound-guided surgery and help in the smooth implementation of surgery. Moreover, nerve block anesthesia and comprehensive nursing were of great value in postoperative analgesia and recovery of patients.


Assuntos
Anestesia , Fraturas do Quadril , Idoso , Algoritmos , Fêmur , Fraturas do Quadril/diagnóstico por imagem , Fraturas do Quadril/cirurgia , Humanos , Ultrassonografia
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