Medical ultrasonography最新文献_第7页

Thrombosed persistent median artery in a medical sonographer. 一名医学超声技师的正中动脉血栓形成。

Medical ultrasonography Pub Date : 2024-09-04 DOI: 10.11152/mu-4431

Stephen Leinfelder, Nicholas C Nacey

引用次数: 0

Machine learning analysis of contrast-enhanced ultrasound (CEUS) for the diagnosis of acute graft dysfunction in kidney transplant recipients. 用于诊断肾移植受者急性移植物功能障碍的对比增强超声（CEUS）机器学习分析。

Medical ultrasonography Pub Date : 2024-09-04 DOI: 10.11152/mu-4430

Tudor Moisoiu, Alina Daciana Elec, Adriana Milena Muntean, Alexandru Florin Badea, Anca Budusan, Bogdan Stancu, Gheorghiță Iacob, Antal Oana, Alexandra Andries, Razvan Zaro, Mihai A Socaciu, Radu Ion Badea, Gabriel C Oniscu, Florin Ioan Elec

{"title":"Machine learning analysis of contrast-enhanced ultrasound (CEUS) for the diagnosis of acute graft dysfunction in kidney transplant recipients.","authors":"Tudor Moisoiu, Alina Daciana Elec, Adriana Milena Muntean, Alexandru Florin Badea, Anca Budusan, Bogdan Stancu, Gheorghiță Iacob, Antal Oana, Alexandra Andries, Razvan Zaro, Mihai A Socaciu, Radu Ion Badea, Gabriel C Oniscu, Florin Ioan Elec","doi":"10.11152/mu-4430","DOIUrl":"https://doi.org/10.11152/mu-4430","url":null,"abstract":"Aim: The aim of the study was to develop machine learning algorithms (MLA) for diagnosing acute graft dysfunction (AGD) in kidney transplant recipients based on contrast-enhanced ultrasound (CEUS) analysis of the graft.Materials and methods: This prospective study involved 71 patients with kidney transplant undergoing CEUS during follow-up. AGD wasdefined as an increase in serum creatinine levels of at least 25% compared to the baseline of the last three months. The control group consisted of patients with stable kidney graft function (SGF). The top five CEUS parameters that achieved the best discrimination between the AGD and SGF groups were selected based on ANOVA testing and then employed as input for training MLA (naïve Bayes (NB), k-nearest neighbors (k-NN), and logistic regression (LR)). The models were validated by leave-one-out cross-validation.Results: Among the 111 CEUS analyses, 21 corresponded to the AGD group and 90 to the SGF group. CEUS analyses yielded 44 parameters, from which five were selected: the wash out rate in segmental arteries,time to peak in segmental arteries, medullary mean transit time, renal mean transit time, and medullary time to fall. These five parameters were employed as input for MLA, yielding an AUROC of 0.68 for NB and k-NN and 0.72 for LR. The inclusion of graft survival in the MLA significantly improved discrimination accuracy, yielding an AUROC of 0.79 for NB, 0.76 for k-NN,and 0.81 for LR.Conclusions: The use of MLA represents a promising strategy for analyzing CEUS-derived parameters in the setting AGD.","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142134949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrasound characteristics of hepatic epithelioid hemangioendothelioma: a multi-center case series study. 肝上皮样血管内皮瘤的超声特征：一项多中心病例系列研究。

Medical ultrasonography Pub Date : 2024-09-04 DOI: 10.11152/mu-4433

Tonglong Zhang, Meng Wang, Lei Ruan, Juanping Chen, Wuwu Zheng, Sen Han, Tianan Jiang

{"title":"Ultrasound characteristics of hepatic epithelioid hemangioendothelioma: a multi-center case series study.","authors":"Tonglong Zhang, Meng Wang, Lei Ruan, Juanping Chen, Wuwu Zheng, Sen Han, Tianan Jiang","doi":"10.11152/mu-4433","DOIUrl":"https://doi.org/10.11152/mu-4433","url":null,"abstract":"Aims: Hepatic epithelioid hemangioendothelioma (HEHE) is a rare vascular tumor that primarily affects the liver. This study aimed to analyze the characteristics of conventional ultrasound (US) and contrast-enhanced ultrasonography (CEUS) in HEHE.Material and methods: This multi-center case series study enrolled patients diagnosed with HEHE from five hospitals in China between August 2004 and October 2022. Data on conventional US and CEUS characteristics were collected and analyzed.Results: A total of 41 patients with HEHE were included, comprising 14 males and 27 females with a mean age of 50.62±11.43 years. The mean size of the lesion was 4.51±2.92 cm. Among these patients, 29 were confirmed through surgical resection and 12 through liver biopsy. Conventional US imaging identified three types of HEHE: multifocal type in 35 patients (85.4%), single nodular type in 1 patient (2.4%), and giant type in 5 patients (12.2%). US revealed proximity to the liver capsule in 29 patients (71%), hypoechoic appearance in 36 patients (88%), heterogeneity in 4 patients (10%), and hyperechoic appearance in 1 patient (2.4%). CEUS also demonstrated three distinct enhancement patterns: peripheral marginal enhancement with centripetal filling in the arterial phase and washout in the portal venous and venous phases (23 patients), eterogeneous enhancement in the arterial phase with washout in the subsequent phases (7 patients), and mild hyperenhancement in the arterial phase with resolution in later phases (9 patients). A hypo-enhancement pattern in the portal venous and venous phases was observed in 38 patients, suggesting a higher degree of malignancy.Conclusion: HEHE exhibits specific US findings, primarilypresenting as multiple hypoechoic lesions distributed under the liver capsule.","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142134953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The feasibility of carotid evaluation by resident radiologists to expand access to ultrasound services. 由放射科住院医生进行颈动脉评估以扩大超声波服务范围的可行性。

Medical ultrasonography Pub Date : 2024-09-04 DOI: 10.11152/mu-4434

Jia Liu, Mei Liao, Hui Zhang, Jie Ren

{"title":"The feasibility of carotid evaluation by resident radiologists to expand access to ultrasound services.","authors":"Jia Liu, Mei Liao, Hui Zhang, Jie Ren","doi":"10.11152/mu-4434","DOIUrl":"https://doi.org/10.11152/mu-4434","url":null,"abstract":"Aims: The purpose of our study was to determine resident radiologists' accuracy in diagnosing carotid atherosclerotic plaque and to assess any factors leading to incorrect findings.Materials and methods: The results of preliminary carotid scanning performed by radiology residents from December 1, 2021, to August 1, 2022, were retrospectively reviewed. These scans received an instant review by experts. The discrepancy rates of the resident radiologists were evaluated using expert diagnoses. Then, the plaque detection rate of the resident radiologists was investigated for different plaque characteristics. The causes of incorrect stenosis diagnoses were analyzed.Results: In the investigation of carotid plaque detection, a total of 274 carotid scans from 137 patients were evaluated in our hospital. The overall agreement rate of plaque detection was 90.9%. Echolucent plaques, plaques in the lateral or near wall, and plaques in the carotid bulbs were more likely to be misdiagnosed by resident radiologists. A total of 325 plaques were included in the investigation of carotid artery stenosis classification. The overall agreement rate of stenosis evaluation was 67.7%. The misclassification of moderate stenosis was greater than that of mild and severe stenosis (p=0.0003). The sensitivity was as low as 55.56%. Nonstandard sonographic techniques and incorrect application of interpretive criteria were two main causes.Conclusions: Resident radiologists could accurately and efficiently detect carotid plaques. Scanning by resident radiologists can expand access to ultrasound services. Only the diagnosis of moderate stenosis by resident radiologists was not satisfactory and may require a specialized review from experienced radiologists.","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142134950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comments and illustrations of the WFUMB CEUS liver guidelines: rare benign hematological focal liver lesions (hepatic extramedullary hematopoiesis, Hemophagocytic lymphohistiocytosis, reactive lymphoid hyperplasia). WFUMB CEUS 肝脏指南的评论和说明：罕见良性血液病灶性肝脏病变（肝髓外造血、嗜血细胞性淋巴组织细胞增多症、反应性淋巴增生）。

Medical ultrasonography Pub Date : 2024-08-10 DOI: 10.11152/mu-4419

Amjad Alhyari, Ehsan Safai Zadeh, Ana Martín Algíbez, Annalisa Berzigotti, Christian Görg, Corinna Trenker, Christian Jenssen, Adrian Lim, Kathleen Möller, Yi Dong, Xin Wu Cui, Wen-Ping Wang, Christoph Frank Dietrich

{"title":"Comments and illustrations of the WFUMB CEUS liver guidelines: rare benign hematological focal liver lesions (hepatic extramedullary hematopoiesis, Hemophagocytic lymphohistiocytosis, reactive lymphoid hyperplasia).","authors":"Amjad Alhyari, Ehsan Safai Zadeh, Ana Martín Algíbez, Annalisa Berzigotti, Christian Görg, Corinna Trenker, Christian Jenssen, Adrian Lim, Kathleen Möller, Yi Dong, Xin Wu Cui, Wen-Ping Wang, Christoph Frank Dietrich","doi":"10.11152/mu-4419","DOIUrl":"https://doi.org/10.11152/mu-4419","url":null,"abstract":"The manifestation of benign hematological infiltration in the liver is a challenge due to their rare occurrence and therefore, limited awareness and the general need for biopsy and histological confirmation. Owing to the rarity of these lesions, there are limited data concerning their appearance on ultrasound and, specifically, contrast-enhanced ultrasound. In a series of papers, we have compiled the US and CEUS characteristics of rare FLL, where there are few reports and images available, in order to build up a library of these cases. This paper describes the US and CEUS features of benign hematological FLL which include hepatic extramedullary hematopoiesis (EMH), hemophagocytic lymphohistiocytosis (HLH) and reactive lymphoid hyperplasia (RLH). Although these lesions occur rarely in the liver, their correct identification is imperative for appropriate patient`s management.","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141914969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An [illustrative] update on pediatric emergency medicine ultrasound: part 2 - abdominal and urogenital applications. 儿科急诊医学超声波的[说明性]更新：第二部分--腹部和泌尿生殖系统应用。

Medical ultrasonography Pub Date : 2024-07-29 DOI: 10.11152/mu-4414

Yi Dong, Beatrice Hoffmann, Simone Schwarz, Nasenien Nourkami-Tutdibi, Yun-Lin Huang, Sheng Chen, Andrius Cekuolis, Rasa Augustiniene, Peter J Snelling, Dagmar Schreiber-Dietrich, Lara Grevelding, Christoph F Dietrich

引用次数: 0

Knee tuberculosis in the context of MALT lymphoma: the diagnostic role of ultrasound and CEUS. A case report. MALT淋巴瘤背景下的膝关节结核：超声波和CEUS的诊断作用。病例报告。

Medical ultrasonography Pub Date : 2024-07-07 DOI: 10.11152/mu-4410

Daniela Fodor, M. Pelea, M. Bădărînză, Carmen Georgiu, O. Șerban

引用次数: 0

Ultrasound in bone fracture diagnosis - a comparative meta-analysis and systematic review. 超声波在骨折诊断中的应用--比较荟萃分析和系统综述。

Medical ultrasonography Pub Date : 2024-06-28 DOI: 10.11152/mu-4407

Eric Matschiner, Oana Serban, Daniela Fodor, Michael Blaivas, Rudolf Horn, Jonas Koch, Marie-Lise Jakobi, Lara Grevelding, Joseph Osterwalder, David Srivastava, Christoph Frank Dietrich

{"title":"Ultrasound in bone fracture diagnosis - a comparative meta-analysis and systematic review.","authors":"Eric Matschiner, Oana Serban, Daniela Fodor, Michael Blaivas, Rudolf Horn, Jonas Koch, Marie-Lise Jakobi, Lara Grevelding, Joseph Osterwalder, David Srivastava, Christoph Frank Dietrich","doi":"10.11152/mu-4407","DOIUrl":"https://doi.org/10.11152/mu-4407","url":null,"abstract":"Aim: This meta-analysis evaluates the diagnostic accuracy of ultrasound (US) for bone fractures over the past 47 years, comparing it to established imaging standards.Material and methods: We adhered to PRISMA 2020 guidelines to search Medline, EMBASE, and the Cochrane Library using tailored search strategies. The primary outcome, US diagnostic performance, was analyzed across various subgroups including clinical relevance, patient age, and anatomical considerations. The QUADAS-2 tool was employed to assess study quality and minimize bias.Results: From 5,107 initially identified studies, 75 met the inclusion criteria, encompassing 7,769 participants and 3,575 diagnosed fractures. The majority of studies were prospective (79%) and compared US primarily with plain radiography (76%) and CT scans (19%). Of these, 61 studies were amenable to systematic analysis, revealing US to have a sensitivity and specificity of 91% (95% CI: 90%-92%) and 91.3% (95% CI: 90.5%-92.1%), respectively. Likelihood ratios were favorable, with a positive value of 9.955 and a negative value of 0.087, and an odds ratio of 132.67. The area under the curve stood at 0.9715, indicating high diagnostic accuracy despite significant heterogeneity (I²=81.3% for sensitivity, 89.3% for specificity).Conclusion: The evidence supports US as a highly accurate diagnostic tool for bone fractures, rivalling standard imaging methods like CT and radiography. Its notable diagnostic efficacy, combined with advantages in reducing pain, wait times, and radiation exposure, advocates for its broader application. Further validation in large-scale, randomized trials is essential to integrate US more fully into clinical guidelines for fracture management.","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141857470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comments and illustrations of the WFUMB CEUS liver guidelines: Peliosis hepatis and porphyria. WFUMB CEUS肝脏指南的注释和插图：肝皮病和卟啉。

Medical ultrasonography Pub Date : 2024-06-21 Epub Date: 2023-10-04 DOI: 10.11152/mu-4287

Kathleen Moller, Oliver Hoffmann, Ehsan Safai Zadeh, Christian Gorg, Christian Jenssen, Michael Hocke, Chiara De Molo, Carla Serra, Yi Dong, Xin Wu Cui, Adrian Lim, Klaus Dirks, Siegbert Faiss, David Srivastava, Christoph F Dietrich

引用次数: 0

Unexpected finding: a patient with choledocholithiasis found mass at the lower end of common bile duct. 意外发现：一名胆总管结石患者在胆总管下端发现肿块。

Medical ultrasonography Pub Date : 2024-06-21 DOI: 10.11152/mu-4404

Wei Zhang, Sen-Lin Hou, Kun Lian, Jiao Tian, Yan-Kun Hou, Li-Chao Zhang

引用次数: 0