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1.
BMC Pediatr ; 24(1): 215, 2024 Mar 25.
Artigo em Inglês | MEDLINE | ID: mdl-38528506

RESUMO

BACKGROUND: Neonatal respiratory distress syndrome (NRDS) is a prevalent cause of respiratory failure and death among newborns, and prompt diagnosis is imperative. Historically, diagnosis of NRDS relied mostly on typical clinical manifestations, chest X-rays, and CT scans. However, recently, ultrasound has emerged as a valuable and preferred tool for aiding NRDS diagnosis. Nevertheless, evaluating lung ultrasound imagery necessitates rigorous training and may be subject to operator-dependent bias, limiting its widespread use. As a result, it is essential to investigate a new, reliable, and operator-independent diagnostic approach that does not require subjective factors or operator expertise. This article aims to explore the diagnostic potential of ultrasound-based radiomics in differentiating NRDS from other non-NRDS lung disease. METHODS: A total of 150 neonatal lung disease cases were consecutively collected from the department of neonatal intensive care unit of the Quanzhou Maternity and Children's Hospital, Fujian Province, from September 2021 to October 2022. Of these patients, 60 were diagnosed with NRDS, whereas 30 were diagnosed with neonatal pneumonia, meconium aspiration syndrome (MAS), and transient tachypnea (TTN). Two ultrasound images with characteristic manifestations of each lung disease were acquired and divided into training (n = 120) and validation cohorts (n = 30) based on the examination date using an 8:2 ratio. The imaging texture features were extracted using PyRadiomics and, after the screening, machine learning models such as random forest (RF), logistic regression (LR), K-nearest neighbors (KNN), support vector machine (SVM), and multilayer perceptron (MLP) were developed to construct an imaging-based diagnostic model. The diagnostic efficacy of each model was analyzed. Lastly, we randomly selected 282 lung ultrasound images and evaluated the diagnostic efficacy disparities between the optimal model and doctors across differing levels of expertise. RESULTS: Twenty-two imaging-based features with the highest weights were selected to construct a predictive model for neonatal respiratory distress syndrome. All models exhibited favorable diagnostic performances. Analysis of the Youden index demonstrated that the RF model had the highest score in both the training (0.99) and validation (0.90) cohorts. Additionally, the calibration curve indicated that the RF model had the best calibration (P = 0.98). When compared to the diagnostic performance of experienced and junior physicians, the RF model had an area under the curve (AUC) of 0.99; however, the values for experienced and junior physicians were 0.98 and 0.85, respectively. The difference in diagnostic efficacy between the RF model and experienced physicians was not statistically significant (P = 0.24), whereas that between the RF model and junior physicians was statistically significant (P < 0.0001). CONCLUSION: The RF model exhibited excellent diagnostic performance in the analysis of texture features based on ultrasound radiomics for diagnosing NRDS.


Assuntos
Síndrome do Desconforto Respiratório do Recém-Nascido , Humanos , Recém-Nascido , Área Sob a Curva , Síndrome de Aspiração de Mecônio , Radiômica , Síndrome do Desconforto Respiratório do Recém-Nascido/diagnóstico por imagem , Ultrassonografia
2.
J Clin Ultrasound ; 52(4): 470-472, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38288520

RESUMO

Granulomatous orchitis is a relatively rare clinical testicular lesion. The imaging manifestations and clinical symptoms are similar to those of testicular tumors. In order to improve the understanding of this disease, this article reports the ultrasonographic manifestations of a case of granulomatous orchitis and reviews the relevant literature with.


Assuntos
Erros de Diagnóstico , Granuloma , Orquite , Humanos , Orquite/diagnóstico por imagem , Masculino , Granuloma/diagnóstico por imagem , Diagnóstico Diferencial , Testículo/diagnóstico por imagem , Ultrassonografia/métodos , Adulto
3.
Zhong Nan Da Xue Xue Bao Yi Xue Ban ; 49(4): 603-610, 2024 Apr 28.
Artigo em Inglês, Chinês | MEDLINE | ID: mdl-39019789

RESUMO

OBJECTIVES: In clinical ultrasound examinations, it is challenging to perform quality control on the images of each fetal nuchal translucency (NT) and crown-rump length (CRL). However, small measurement differences can increase the probability of false-positive or false-negative diagnosis. Therefore, it is necessary to establish a quality control system for fetal NT examination. This study aims to control the quality of fetal NT and CRL measurements, evaluate the accuracy of ultrasound physicians in early pregnancy NT measurements, and analyze the impact of increased fetal structure screening on the detection rate of chromosomal abnormalities. METHODS: Data were collected from cases before and after 12 months of NT examination quality control, with 2 214 before quality control and 2 538 cases after quality control. Three quality control data metrics were analyzed: NT multiple of median (NT-MoM), standard deviation (SD) of log10MoM [(SD) log10MoM], and the slope of NT on CRL (SNC). The performance of NT measurements was monitored through the individual CRL NT-MoM within the 0.9-1.1 MoM range of the normal median curve, while grouped based on different years of experience (<3 years, 3-6 years, >6 years), and NT-MoM values among these groups were compared. Data on NT thickening, structural anomalies, and chromosomal abnormalities were retrospectively analyzed during the quality control period. RESULTS: According to the curve equation of the American NTQR project group, the NT-MoM value before quality control was 0.921 7 MoM, the (SD) log10MoM value was 0.091 92, and the SNC value was 12.20%. After quality control, the NT-MoM value was 0.948 3 MoM, the (SD) log10MoM value was 0.094 81, and the SNC value was 11.43%. The comparison of NT-MoM values before and after quality control showed a statistically significant difference (P<0.000 1). The comparison of NT-MoM values measured by ultrasound physicians with different years of experience before and after quality control also showed statistically significant differences (P<0.000 1). The NT-MoM values for the 3-6 years and >6 years groups were higher after quality control (P<0.05), while the <3 years group showed no significant difference before and after quality control (P>0.05). After quality control, cases of NT thickening without significant structural abnormalities accounted for 19.05%, NT thickening with structural abnormalities accounted for 47.62%, and NT normal with structural abnormalities accounted for 33.33%. There were 36 cases of fetal heart abnormalities, accounting for 20.34% of the total abnormality rate, with a positive rate of 36% in chromosome tests. CONCLUSIONS: After quality control, ultrasound physicians measure NT more accurately, but differences among measurements remain. Measurements by experienced ultrasound physicians are closer to expected values, usually lower than expected. Monitoring fetal NT and CRL measurements helps improve measurement accuracy. Increasing structural screening during NT examinations, especially for the fetal heart, enhances the detection rate of chromosomal abnormalities.


Assuntos
Estatura Cabeça-Cóccix , Medição da Translucência Nucal , Controle de Qualidade , Ultrassonografia Pré-Natal , Humanos , Medição da Translucência Nucal/normas , Feminino , Gravidez , Ultrassonografia Pré-Natal/métodos , Ultrassonografia Pré-Natal/normas , Aberrações Cromossômicas/embriologia , Adulto
4.
BMC Pregnancy Childbirth ; 23(1): 354, 2023 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-37189095

RESUMO

OBJECTIVE: To evaluate the diagnostic accuracy of ultrasound and in the diagnosis of Placenta accreta spectrum (PAS). DATA SOURCES: Screening of MEDLINE, CENTRAL, other bases from inception to February 2022 using the keywords related to placenta accreta, increta, percreta, morbidly adherent placenta, and preoperative ultrasound diagnosis. STUDY ELIGIBILITY CRITERIA: All available studies- whether were prospective or retrospective- including cohort, case control and cross sectional that involved prenatal diagnosis of PAS using 2D or 3D ultrasound with subsequent pathological confirmation postnatal were included. Fifty-four studies included 5307 women fulfilled the inclusion criteria, PAS was confirmed in 2025 of them. STUDY APPRAISAL AND SYNTHESIS METHODS: Extracted data included settings of the study, study type, sample size, participants characteristics and their inclusion and exclusion criteria, Type and site of placenta previa, Type and timing of imaging technique (2D, and 3D), severity of PAS, sensitivity and specificity of individual ultrasound criteria and overall sensitivity and specificity. RESULTS: The overall sensitivity was 0.8703, specificity was 0.8634 with -0.2348 negative correlation between them. The estimate of Odd ratio, negative likelihood ratio and positive likelihood ratio were 34.225, 0.155 and 4.990 respectively. The overall estimates of loss of retroplacental clear zone sensitivity and specificity were 0.820 and 0.898 respectively with 0.129 negative correlation. The overall estimates of myometrial thinning, loss of retroplacental clear zone, the presence of bridging vessels, placental lacunae, bladder wall interruption, exophytic mass, and uterovesical hypervascularity sensitivities were 0.763, 0.780, 0.659, 0.785, 0.455, 0.218 and 0.513 while specificities were 0.890, 0.884, 0.928, 0.809, 0.975, 0.865 and 0.994 respectively. CONCLUSIONS: The accuracy of ultrasound in diagnosis of PAS among women with low lying or placenta previa with previous cesarean section scars is high and recommended in all suspected cases. TRIAL REGISTRATION: Number CRD42021267501.


Assuntos
Placenta Acreta , Placenta Prévia , Gravidez , Feminino , Humanos , Placenta Acreta/diagnóstico por imagem , Placenta/diagnóstico por imagem , Placenta/patologia , Placenta Prévia/diagnóstico por imagem , Cesárea , Estudos Retrospectivos , Estudos Prospectivos , Estudos Transversais , Ultrassonografia Pré-Natal/métodos
5.
BMC Womens Health ; 23(1): 585, 2023 11 08.
Artigo em Inglês | MEDLINE | ID: mdl-37940895

RESUMO

BACKGROUND: The accuracy of ultrasound in distinguishing benign from malignant adnexal masses is highly correlated with the experience of ultrasound physicians. In China, most of ultrasound differentiation is done by junior physicians. PURPOSE: To compare the diagnostic performance of the International Ovarian Tumour Analysis (IOTA) Simple Rules Risk (SRR) and IOTA Logistic Regression Model 2 (LR2) scoring systems in Chinese patients with adnexal masses. METHODS: Retrospective analysis of ovarian cancer tumor patients who underwent surgery at a hospital in China from January 2016 to December 2021. Screening patients with at least one adnexal mass on inclusion and exclusion criteria. Two trained junior physicians evaluated each mass using the two scoring systems. A receiver operating characteristic curve was used to test the diagnostic performance of each system. RESULTS: A total of 144 adnexal masses were retrospectively collected. Forty masses were histologically diagnosed as malignant. Compared with premenopausal women, postmenopausal women had a much higher rate of malignant masses. The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) of the SRR was 97.5% (95% CI: 86.8 -99.9%), 82.7% (95% CI: 74.0 -89.4%), 68.4% (95% CI: 58.7 -76.8%) and 98.9% (95% CI: 92.5 -99.8%). The sensitivity, specificity, PPV, NPV of the LR2 were 90.0% (95% CI: 76.5 -97.2%), 89.4% (95% CI: 81.9 -94.6%), 76.6% (95% CI: 65.0 -85.2%), and 95.9% (95% CI: 90.2 -98.3%). There was good agreement between two scoring systems, with 84.03% total agreement and a kappa value of 0.783 (95% CI: 0.70-0.864). The areas under the curve for predicting malignant tumours using SRR and LR2 were similar for all patients (P > 0.05 ). CONCLUSION: The two scoring systems can effectively distinguish benign from malignant adnexal masses. Both scoring systems have high diagnostic efficacy, and diagnostic efficacy is stable, which can provide an important reference for clinical decision making.


Assuntos
Doenças dos Anexos , Neoplasias Ovarianas , Humanos , Feminino , Modelos Logísticos , Estudos Retrospectivos , População do Leste Asiático , Sensibilidade e Especificidade , Neoplasias Ovarianas/diagnóstico por imagem , Neoplasias Ovarianas/patologia , Ultrassonografia , Doenças dos Anexos/diagnóstico por imagem , Doenças dos Anexos/patologia , Diagnóstico Diferencial
6.
J Ultrasound Med ; 42(4): 915-922, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36173144

RESUMO

OBJECTIVES: What is the role of transvaginal sonography (TVS) in the early diagnosis of hectopic interstitial pregnancy (HIP) after in vitro fertilization-embryo transfer (IVF-ET)? METHODS: A retrospective observational study was conducted from January 2005 to December 2018. Routine two-dimensional and three-dimensional TVS were used to confirm clinical pregnancy. Women were diagnosed with HIP when an intrauterine gestational sac was combined with an extrauterine chorionic sac, which was at least 1 cm away from the uterine cavity and surrounded by a thin myometrial layer (<5 mm). Surgery and pathology results were the gold standard for diagnosing interstitial pregnancy. Non-surgical patients were excluded from the study. The performance of TVS and the pregnancy outcomes of intrauterine pregnancies (IUPs) were evaluated. RESULTS: A total of 97,161 women underwent IVF treatment and TVS examinations in our hospital during this study. Of these, 194 patients were diagnosed with HIP, with an incidence of 0.2% (194/97,161). Surgical and pathological findings confirmed 179 interstitial pregnancies, of which 174 were diagnosed by TVS, 4 were missed, and 1 was misdiagnosed. The sensitivity of TVS diagnosis was 97.8% and the positive predictive value was 99.4%. The mean time to diagnosis was 31 days after transplantation. One hundred and thirty-nine cases of HIP (77.7%) were diagnosed at the time of initial TVS examination. In 132 patients (73.7%), IUPs resulted in live births. CONCLUSIONS: In our practice, most HIPs following IVF-ET can be accurately diagnosed by TVS, which facilitates early management of interstitial pregnancies and enables high live birth rates for IUPs.


Assuntos
Gravidez Heterotópica , Gravidez Intersticial , Gravidez , Humanos , Feminino , Gravidez Intersticial/diagnóstico por imagem , Ultrassonografia Pré-Natal/métodos , Transferência Embrionária , Diagnóstico Precoce , Estudos Retrospectivos , Fertilização in vitro , Gravidez Heterotópica/diagnóstico por imagem
7.
J Clin Ultrasound ; 51(3): 426-431, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36152021

RESUMO

Hydrometrocolpos is a pelvic cystic mass representing the distension of the vagina and uterus due to a lower genital tract obstruction causing accumulation of utero-cervical-vaginal secretions or urine in the vagina and endometrial cavity. Prenatal diagnosis is uncommon and differential diagnosis of the underlying etiologies is quite challenging in the prenatal period. We present three cases of female fetuses with hydrometrocolpos and discuss the prenatal differential diagnoses in the light of ultrasound findings along with postnatal diagnoses and outcomes.


Assuntos
Anormalidades Urogenitais , Doenças Uterinas , Gravidez , Feminino , Humanos , Diagnóstico Diferencial , Ultrassonografia Pré-Natal , Ultrassonografia , Diagnóstico Pré-Natal , Vagina/diagnóstico por imagem , Doenças Uterinas/diagnóstico , Anormalidades Urogenitais/diagnóstico , Feto
8.
BMC Pediatr ; 22(1): 15, 2022 01 03.
Artigo em Inglês | MEDLINE | ID: mdl-34980064

RESUMO

BACKGROUND: The prenatal diagnosis of foetal imperforate anus is difficult. Most previous studies have been case reports. To provide useful information for diagnosing foetal imperforate anus, a retrospective review of diagnostic approaches was conducted. Ultrasonography was performed in 19 cases of foetal imperforate anus from 2016 to 2019 at our prenatal diagnostic centre. The prenatal sonographic features and outcomes of each case were collected and evaluated. RESULT: The anal sphincter of a normal foetus shows the 'target sign' on cross-sectional observation. Of the 19 cases of imperforate anus, 16 cases were diagnosed by the ultrasound image feature called the 'line sign'. 1 case with tail degeneration was low type imperforate anus with the irregular 'target sign' not a real 'target sign'. There was two false-negative case, in which the 'target sign' was found, but irregular. CONCLUSION: In this study, we find that the anus of a foetus with imperforate anus presents a 'line sign' on sonographic observation. The absence of the 'target sign' and then the presence of the 'line sign' can assist in the diagnosis of imperforate anus. The 'line sign' can be used as a secondary assessment to determine the type of the malformation following non visualization of the 'target sign'. The higher the position of the imperforate anus is, the more obvious the 'line sign'. It is worth noting that the finding of the short 'line sign' and irregularr 'target sign' can not ignore the low type imperforate anus.


Assuntos
Anus Imperfurado , Canal Anal/anormalidades , Canal Anal/diagnóstico por imagem , Anus Imperfurado/diagnóstico por imagem , Estudos Transversais , Feminino , Humanos , Gravidez , Ultrassonografia/métodos , Ultrassonografia Pré-Natal/métodos
9.
BMC Med Inform Decis Mak ; 22(1): 298, 2022 11 17.
Artigo em Inglês | MEDLINE | ID: mdl-36397100

RESUMO

BACKGROUND: Upon the discovery of ovarian cysts, obstetricians, gynecologists, and ultrasound examiners must address the common clinical challenge of distinguishing between benign and malignant ovarian tumors. Numerous types of ovarian tumors exist, many of which exhibit similar characteristics that increase the ambiguity in clinical diagnosis. Using deep learning technology, we aimed to develop a method that rapidly and accurately assists the different diagnosis of ovarian tumors in ultrasound images. METHODS: Based on deep learning method, we used ten well-known convolutional neural network models (e.g., Alexnet, GoogleNet, and ResNet) for training of transfer learning. To ensure method stability and robustness, we repeated the random sampling of the training and validation data ten times. The mean of the ten test results was set as the final assessment data. After the training process was completed, the three models with the highest ratio of calculation accuracy to time required for classification were used for ensemble learning pertaining. Finally, the interpretation results of the ensemble classifier were used as the final results. We also applied ensemble gradient-weighted class activation mapping (Grad-CAM) technology to visualize the decision-making results of the models. RESULTS: The highest mean accuracy, mean sensitivity, and mean specificity of ten single CNN models were 90.51 ± 4.36%, 89.77 ± 4.16%, and 92.00 ± 5.95%, respectively. The mean accuracy, mean sensitivity, and mean specificity of the ensemble classifier method were 92.15 ± 2.84%, 91.37 ± 3.60%, and 92.92 ± 4.00%, respectively. The performance of the ensemble classifier is better than that of a single classifier in three evaluation metrics. Moreover, the standard deviation is also better which means the ensemble classifier is more stable and robust. CONCLUSION: From the comprehensive perspective of data quantity, data diversity, robustness of validation strategy, and overall accuracy, the proposed method outperformed the methods used in previous studies. In future studies, we will continue to increase the number of authenticated images and apply our proposed method in clinical settings to increase its robustness and reliability.


Assuntos
Redes Neurais de Computação , Neoplasias Ovarianas , Feminino , Humanos , Reprodutibilidade dos Testes , Ultrassonografia , Neoplasias Ovarianas/diagnóstico por imagem , Diagnóstico Diferencial
10.
J Obstet Gynaecol Res ; 48(10): 2620-2623, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35810462

RESUMO

Primary myxomatous degeneration of cardiac valves is a rare cardiac malformation. We discovered a case of fetal primary myxomatous degeneration of cardiac valves during routine prenatal ultrasound examination. This is the first time such a case has been detected on prenatal ultrasound.


Assuntos
Feto , Valva Mitral , Feminino , Humanos , Gravidez , Diagnóstico Pré-Natal , Ultrassonografia , Ultrassonografia Pré-Natal
11.
J Clin Ultrasound ; 50(5): 694-695, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35261032

RESUMO

This study describes the ultrasound imaging features of orbital mucosa-associated lymphoid tissue lymphoma with IgG-4 positive. The author supposes ultrasound can become a new imaging method for diagnosing orbital lymphoma.


Assuntos
Linfoma de Zona Marginal Tipo Células B , Neoplasias Orbitárias , Humanos , Imunoglobulina G , Linfoma de Zona Marginal Tipo Células B/diagnóstico por imagem , Linfoma de Zona Marginal Tipo Células B/patologia , Neoplasias Orbitárias/diagnóstico , Neoplasias Orbitárias/patologia , Estudos Retrospectivos , Ultrassonografia
12.
Fetal Pediatr Pathol ; 41(2): 281-292, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32538685

RESUMO

Background Apert syndrome is characterized by craniosynostosis, midface hypoplasia and symmetric syndactyly. Case report: A 36-year-old mother, G2P1 underwent an ultrasound scan at 19 week's gestation. There was craniosynostosis, brachi-turricephaly and bilateral hand syndactyly. Genomic DNA from amniocentesis revealed the mutation C758C>Gp. (Pro to Arg substitution) at 252 of the exon 8 of the FGFR2 encoding for Apert syndrome. The pregnancy was terminated. Femoral chondral plate histology showed an increased interstitial matrix between bony trabeculae. Compared with normal, the trabeculae were thinner, more irregular with numerous osteoclasts suggesting abnormal bone remodeling. Hands and feet had an abrupt transition between resting and proliferating cartilage. Conclusion: Apert syndrome has increased intertrabecular matrix, thin trabeculae, increased remodeling, and irregular transition between the maturing and mineralization zones in the femur, and abnormal abrupt transition between the resting and proliferating cartilage in the fingers and toes.


Assuntos
Acrocefalossindactilia , Acrocefalossindactilia/diagnóstico por imagem , Acrocefalossindactilia/genética , Adulto , Feminino , Humanos , Mutação , Gravidez , Tomografia Computadorizada por Raios X , Ultrassonografia Pré-Natal
13.
Ceska Gynekol ; 87(3): 193-197, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35896398

RESUMO

OBJECTIVE: To summarize the current knowledge on pregnancy in a cesarean scar. METHODOLOGY: A literature review on the topic using the PubMed database. RESULTS: Gravidity in a cesarean scar is a relatively new type of ectopic pregnancy that will be an increasingly common problem in an era of increasing cesarean section rates. It is still a relatively rare event, occurring in about 6% of the population. Diagnosis is based primarily on ultrasound examination and is essential early on in pregnancy. The pathogenesis of the disease is due to a disorder of the basal layer of the endometrium and can lead to conditions that we refer to as placenta accreta spectrum. The management is completely individualized and depends on hCG values, ultrasound findings, fetal viability, the wishes of the pregnant woman and the experience of the gynecologist concerned. CONCLUSION: This is still a rare occurrence of ectopic pregnancy but with increasing potential. The solution is completely individualized based on a precise and early ultrasound diagnosis.


Assuntos
Placenta Acreta , Gravidez Ectópica , Cesárea/efeitos adversos , Cicatriz/complicações , Feminino , Humanos , Gravidez , Gravidez Ectópica/diagnóstico , Gravidez Ectópica/etiologia
14.
BMC Pregnancy Childbirth ; 21(1): 548, 2021 Aug 12.
Artigo em Inglês | MEDLINE | ID: mdl-34384376

RESUMO

BACKGROUND: Arterial tortuosity syndrome (ATS) is a rare autosomal recessive connective tissue disorder chiefly characterized by elongated and tortuosity of the large and medium sized arteries and anomalies of the vascular elastic fibers. Here we reported cases of brother about ATS from the same family on the prenatal ultrasound diagnosis. Reports of this case are rare in antenatally and we draw the vessel simulated diagram to display visually. CASE PRESENTATION: Prenatal ultrasound scanning at 29 weeks of gestation of the first fetus showed obvious tortuous and elongated of the aortic arch, ductus arteriosus, left and right pulmonary arteries, carotid and subclavian arteries. Three months after delivery, Contrast-enhanced computed tomography images (CTA) were performed to clearly display vascular abnormalities consistent with prenatal diagnosis of ultrasound. Whole exome sequencing (WES) was performed eight months after birth, two heterozygous variants of SLC2A10 gene was detected in newborn and their father and mother, respectively. Prenatal ultrasound scan at 22 weeks of gestation of the second fetus showed similar cardiovascular imaging. After birth the siblings have facial characteristic features gradually as aging. No surgical intervention was performed in the siblings follow up 19 months. CONCLUSIONS: The key points of prenatal ultrasound diagnosis of ATS are the elongation and tortuosity of the large and medium sized arteries. Genetic counseling is the process of providing individuals and families with information on the nature, inheritance, and implications of genetic disorders to help them make informed medical and personal decisions.


Assuntos
Artérias/anormalidades , Sequenciamento do Exoma , Doenças Fetais/diagnóstico , Doenças Fetais/genética , Proteínas Facilitadoras de Transporte de Glucose/genética , Instabilidade Articular/diagnóstico , Instabilidade Articular/genética , Dermatopatias Genéticas/diagnóstico , Dermatopatias Genéticas/genética , Malformações Vasculares/diagnóstico , Malformações Vasculares/genética , Artérias/diagnóstico por imagem , Feminino , Doenças Fetais/diagnóstico por imagem , Humanos , Lactente , Recém-Nascido , Instabilidade Articular/diagnóstico por imagem , Masculino , Mutação , Pais , Gravidez , Diagnóstico Pré-Natal , Irmãos , Dermatopatias Genéticas/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Ultrassonografia Pré-Natal , Malformações Vasculares/diagnóstico por imagem
15.
J Ultrasound Med ; 40(9): 1975-1986, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33274770

RESUMO

With an increased cesarean delivery rate, the incidence of abnormal placentation is steadily rising, and it is estimated to be around 1.7 per 1000 pregnancies for cesarean scar pregnancy and 1 per 500 pregnancies for placenta accreta spectrum disorder. Current evidence considers cesarean scar pregnancy and placenta accreta spectrum as being the same condition, with different aspects, of the same spectrum, having higher risks with advancing gestation. We present 7 cases, diagnosed and managed in our hospital, at different gestational ages. Early diagnosis is essential for appropriate counseling and subsequent management, and an ultrasound examination is the reference standard for diagnosis. Screening for an abnormally implanted placenta in the first trimester of pregnancy might improve the perinatal outcome and reduce maternal morbidity and mortality.


Assuntos
Placenta Acreta , Gravidez Ectópica , Cesárea/efeitos adversos , Cicatriz/diagnóstico por imagem , Feminino , Humanos , Placenta Acreta/diagnóstico por imagem , Placenta Acreta/terapia , Gravidez , Gravidez Ectópica/diagnóstico por imagem , Gravidez Ectópica/terapia , Ultrassonografia Pré-Natal
16.
Sci Technol Adv Mater ; 21(1): 856-866, 2021 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-33551680

RESUMO

We report the formulation of nanoassemblies (NAs) comprising C225 conjugates Au-PFH-NAs (C-Au-PFH-NAs) for low-intensity focused ultrasound diagnosis ablation of thyroid cancer. C-Au-PFH-NAs showed excellent stability in water, phosphate-buffered saline (PBS), and 20% rat serum. Transmission electron microscopy (TEM) images also revealed the effective construction of C-Au-PFH-NAs as common spherical assemblies. The incubation of C625 thyroid carcinoma with C-Au-PFH-NAs triggers apoptosis, as confirmed by flow cytometry analysis. The C-Au-PFH-NAs exhibited antitumour efficacy in human thyroid carcinoma xenografts, where histopathological results further confirmed these outcomes. Furthermore, we were able to use low-intensity focused ultrasound diagnosis imaging (LIFUS) to examine the efficiency of C-Au-PFH-NAs in thyroid carcinoma in vivo. These findings clearly show that the use of LIFUS agents with high-performance imaging in different therapeutic settings will have extensive potential for future biomedical applications.

17.
BMC Pregnancy Childbirth ; 20(1): 387, 2020 Jul 03.
Artigo em Inglês | MEDLINE | ID: mdl-32620086

RESUMO

BACKGROUND: The purpose of this research is to summarize the prenatal ultrasound characteristics of congenital duodenal obstruction (CDO), especially in the diagnosis of duodenal diaphragm and annular pancreas. At present, few researchers have summarized the specific ultrasound features of duodenal diaphragm and annular pancreas. METHODS: In this study, a retrospective analysis of 40 patients diagnosed with CDO between January 2016 and December 2019 was carried out. Data on the diagnosis, ultrasound images and outcomes of the patients were gathered, and the features of the patients were analyzed. RESULTS: The results showed that there were 17 patients (42.5%) of congenital duodenal diaphragm, all with a 'rat tail' sign on the ultrasound images. Moreover, there were 4 patients (10.0%) of CDO caused by annular pancreas, all with a 'pliers' sign on the ultrasound images. We summarized the imaging features of the 'rat tail' sign and the 'pliers' sign. CONCLUSION: The main conclusion of this study was that the 'rat tail' sign could be used as an indirect ultrasound feature to diagnose duodenal diaphragm. The 'pliers' sign could be used as a direct ultrasound feature in the diagnosis of annular pancreas in CDO.


Assuntos
Obstrução Duodenal/diagnóstico por imagem , Ultrassonografia Pré-Natal , Adulto , Obstrução Duodenal/congênito , Feminino , Idade Gestacional , Humanos , Masculino , Pâncreas/anormalidades , Pâncreas/diagnóstico por imagem , Pancreatopatias/diagnóstico por imagem , Gravidez , Estudos Retrospectivos
18.
J Obstet Gynaecol Res ; 46(9): 1711-1727, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32633025

RESUMO

AIM: This study explored the association between the presence of uterine fibroids (UF), as determined by ultrasound, and preterm birth (PB) risk. METHODS: Medline, Embase, Cochrane, Scopus and Web of Science databases. Studies reporting women with and without UF demonstrated by an ultrasound exam. The primary outcome was the risk of PB < 37 weeks of gestation in pregnancies with UF diagnosed by an obstetric ultrasound exam. Effects for dichotomous and continuous outcomes are, respectively, reported as risk ratios (RR) or mean differences and their 95% confidence intervals (CI). RESULTS: Eighteen studies were included comprising 276 172 pregnancies to whom obstetric ultrasound assessment was performed for the presence/absence of UF. Women with UF were older (mean difference = 2.40 years, 95% CI 0.94-3.85) and were at higher risk of PB before 37 (RR = 1.43, 95% CI 1.27-1.60), 34 (RR = 1.79, 95% CI 1.32-2.42), 32 (RR = 1.94, 95% CI 1.33-2.85) and 28 (RR = 2.17, 95% CI 1.48-3.17) weeks as compared to those without UF (P < 0.01). In addition, women with UF were at higher risk of threatened preterm labor, preterm premature rupture of membranes, fetal malpresentation, placental abruption, lower gestational age and birthweight at delivery and a higher cesarean delivery rate. CONCLUSION: Pregnant women with UF are at increased risk of PB and other adverse obstetric outcomes.


Assuntos
Leiomioma , Trabalho de Parto Prematuro , Nascimento Prematuro , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Leiomioma/diagnóstico por imagem , Leiomioma/epidemiologia , Placenta , Gravidez , Nascimento Prematuro/epidemiologia , Nascimento Prematuro/etiologia
19.
Echocardiography ; 36(10): 1952-1955, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31471981

RESUMO

Right aortic arch (RAA) with mirror image branching (RAMI) accompanied by absent pulmonary valve syndrome (APVS), tricuspid stenosis, and hypoplastic right ventricle is an extremely rare combination of congenital heart anomalies. This combination might result in severe cardiac failure and respiratory compromise, indicating a poor prognosis. Here, we describe a detailed prenatal echocardiographic diagnosis of RAMI accompanied by APVS and tricuspid stenosis. These anomalies were further confirmed by autopsy. This case could be helpful in improving our understanding of this abnormal combination and the development of an early therapeutic strategy.


Assuntos
Aorta Torácica/anormalidades , Ecocardiografia/métodos , Valva Pulmonar/anormalidades , Estenose da Valva Tricúspide/diagnóstico por imagem , Ultrassonografia Pré-Natal/métodos , Aborto Eugênico , Adulto , Aorta Torácica/diagnóstico por imagem , Feminino , Humanos , Gravidez , Valva Pulmonar/diagnóstico por imagem , Síndrome
20.
J Obstet Gynaecol Res ; 45(12): 2466-2469, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31478277

RESUMO

We present a case report of a fetus with a diagnosed pleural effusion in the first trimester on nuchal translucency scan. The effusion resolved spontaneously by 17 weeks of pregnancy. Toxoplasmosis, rubella, cytomegalovirus, herpes simplex (TORCH) - negative. Array comparative genomic hybridization (aCGH) - normal. Serial Doppler scans normal - no prenatal signs of anemia. Maternal antibodies against red cell antigens - negative. Delivery at term by cesarean section because of macrosomia. Neonate suffered from prolonged jaundice. At 3 weeks of life diagnosed with hereditary spherocytosis. Literature review shows that this may be the first connection between this disease and prenatal life.


Assuntos
Doenças do Recém-Nascido/diagnóstico , Derrame Pleural/diagnóstico por imagem , Ultrassonografia Pré-Natal , Adulto , Feminino , Humanos , Hidropisia Fetal/etiologia , Recém-Nascido , Derrame Pleural/fisiopatologia , Gravidez , Esferocitose Hereditária/complicações
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