Medical ultrasonography最新文献_第5页

Diagnosis of rare Loffler endocarditis by cardiac ultrasound: a case report and literature review. 通过心脏超声诊断罕见的洛夫勒心内膜炎：病例报告和文献综述。

Medical ultrasonography Pub Date : 2024-12-19 Epub Date: 2024-08-07 DOI: 10.11152/mu-4416

Juanjuan Li, Ping Li, Maogang Gao, Xiaoxiao Yin, Dongxia Gao, Xiaohui Ji

引用次数: 0

An ultrasound-based nomogram for predicting central lymph node metastasis in papillary thyroid microcarcinoma. 基于超声的甲状腺乳头状微癌中心淋巴结转移预测提名图。

Medical ultrasonography Pub Date : 2024-12-19 Epub Date: 2024-07-29 DOI: 10.11152/mu-4411

Xiaochen Zhang, Jianing Zhu, Xin Ai, Meizheng Dang, Pintong Huang

{"title":"An ultrasound-based nomogram for predicting central lymph node metastasis in papillary thyroid microcarcinoma.","authors":"Xiaochen Zhang, Jianing Zhu, Xin Ai, Meizheng Dang, Pintong Huang","doi":"10.11152/mu-4411","DOIUrl":"10.11152/mu-4411","url":null,"abstract":"Aims: Performing prophylactic central lymph node dissection for papillary thyroid microcarcinoma (PTMC) patients with clinically negative lymph node metastasis remains controversial - not all patients with PTMC are suitable for active surveillance. Therefore, we aimed to establish a nomogram based on ultrasound features for predicting CLNM in PTMC.Material and methods: This retrospective study included 636 patients with PTMC, in which the CLNM status was pathologically confirmed. Univariate and multivariate regression analyses were conducted to screen for risk factors associated with CLNM. Then, a CLNM prediction model was established, receiver operating characteristic, calibration, and decision curve analyses were used to assess the model's performance.Results: Five variables, including age, sex, combined CLNM status, tumor size, and capsule invasion, were included in the nomogram. The values of the area under the receiver operating characteristic curve in the training and validation datasets were 0.720 (95% confidence interval [CI], 0.649-0.791) and 0.704 (95% CI, 0.622-0.786), respectively.Conclusions: An ultrasound-based nomogram was successfully established, of which the predictive model shows excellent predictive performance and can be used to evaluate the status of CLNM in PTMC. Thus, patients with high nomogram scores should be considered for prophylactic central neck dissection.","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":"369-375"},"PeriodicalIF":0.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141857505","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

Robust estimation of Shear Wave group velocity for ultrasound elastography based on frequency domain analysis. 基于频域分析的超声弹性成像剪切波群速度鲁棒估计。

Medical ultrasonography Pub Date : 2024-12-19 DOI: 10.11152/mu-4464

Qian Lv, Xin Zhao, Liang Zhao, Ying Liu, Ye Tian, Jianzhong Guo

{"title":"Robust estimation of Shear Wave group velocity for ultrasound elastography based on frequency domain analysis.","authors":"Qian Lv, Xin Zhao, Liang Zhao, Ying Liu, Ye Tian, Jianzhong Guo","doi":"10.11152/mu-4464","DOIUrl":"https://doi.org/10.11152/mu-4464","url":null,"abstract":"Aims: Shear wave elastography (SWE) is of great significance in measuring the elasticity and in evaluating mechanical properties of biological tissues. The elasticity of biological tissues can be reflected by measuring the propagation velocity of shear waves. Therefore, accurate estimation of shear wave velocity is crucial.Material and methods: In this study, we proposed a robust estimation method based on a cyclic shifting algorithm (CSA) for measuring shear wave group velocity in homogeneous media. To validate the utility of the algorithm, we conducted accuracy analysis and robustness analysis with different noise levels in the digital phantom used for the standardization of shear wave velocity by Quantitative Imaging Biomarker Alliance (QIBA) of the Radiological Society of North America.Results: The estimated shear wave velocities (SWV) of the elastic digital phantoms with Young's moduli 3 kPa, 6 kPa, 15 kPa, 30 kPa are 1.0156 m/s, 1.4065 m/s, 2.1875 m/s, 3.1250 m/s, respectively. When adding Gaussian white noise with 0 dB, the relative errors of the estimated SWVs are 2.5%, 4.8%, 11.8%, 20.5%, respectively. The estimated SWVs in the gelatin phantom with gelatin concentration of 7% and 10% are 2.0442 m/s and 3.1237 m/s. Compared with the existing two representative estimation algorithms, the estimation algorithm proposed in this paper has a higher anti-noise performance due to effective energy accumulation in the frequency domain.Conclusions: The proposed SWV method based on CSA in frequency domain is a robust shear wave group velocity estimation method, which seems to be a useful tool in homogeneous media for ultrasound elastography.","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142869815","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 tricuspid leaflets severe dehiscence after tricuspid rigid ring annuloplasty. 三尖瓣硬环环成形术后三尖瓣叶严重开裂。

Medical ultrasonography Pub Date : 2024-12-19 DOI: 10.11152/mu-4457

Jing Cheng, Xuejie Li

引用次数: 0

Ultrasound and clinical features for differential diagnosis of low-grade appendiceal mucinous neoplasm and acute suppurative appendicitis. 鉴别诊断低级别阑尾粘液瘤和急性化脓性阑尾炎的超声波和临床特征。

Medical ultrasonography Pub Date : 2024-12-19 Epub Date: 2024-07-29 DOI: 10.11152/mu-4412

Yanyan Xiao, Guoliang Jian, Yuan Zhong, Jiongyuan Chen, Jieyi Ye, Yingyu Chen, Yinting Chen, Yide Qiu, Jipeng Wu, Weijun Huang

{"title":"Ultrasound and clinical features for differential diagnosis of low-grade appendiceal mucinous neoplasm and acute suppurative appendicitis.","authors":"Yanyan Xiao, Guoliang Jian, Yuan Zhong, Jiongyuan Chen, Jieyi Ye, Yingyu Chen, Yinting Chen, Yide Qiu, Jipeng Wu, Weijun Huang","doi":"10.11152/mu-4412","DOIUrl":"10.11152/mu-4412","url":null,"abstract":"Aim: To investigate the application of ultrasound along with clinical features for the differential diagnosis of low-grade appendiceal mucinous neoplasm (LAMN) and acute suppurative appendicitis (ASA).Material and methods: The ultrasound and clinical data of 76 patients with histopathologically confirmed LAMN (31 patients) and ASA (45 patients) were retrospectively analyzed. Univariate analysis and binary logistic regression analysis of the influencing factors were conducted to identify LAMN and ASA. The AUROC was calculated to analyze the diagnostic efficacy of these independent factors. A four-grid table was established to determine the diagnostic efficacy of the ultrasound marks for diagnosing LAMN.Results: Patient age and appendix short diameter in the LAMN group were found to be significantly higher than those in the ASA group. The neutrophil ratio and thickness of the appendix wall in the LAMN group were significantly lower than they were in the ASA group. Patient age (OR=1.112, p=0.015) and appendix short diameter (OR=1.476, p=0.008) were independent risk factors for LAMN. The AUROCs for age and short diameter were 0.898 [95% CI: 0.807, 0.956] and 0.953 [95% CI: 0.879, 0.988], respectively. The LAMN group tumors were characterized by the appearance of an \"onion skin\" sign or a purely cystic mark on sonograms, with specificities of 100% for both. Neutrophil ratio (OR<0.001, p=0.064) and thickness of the appendix wall (OR=0.776, p=0.414) were not independent risk factors for ASA.Conclusion: Employing ultrasonography with clinical features is useful for distinguishing LAMN from ASA. Patient age, short diameter of the appendix, and sonographic appearance of \"onion skin\" or purely cystic mark could be key factors in diagnosing LAMN.","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":"348-355"},"PeriodicalIF":0.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141857469","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

Non-mass-like breast intraductal carcinoma detected by Micro-Flow imaging and elastography. 微流成像和弹性成像检测非肿块样乳腺导管内癌。

Medical ultrasonography Pub Date : 2024-12-19 DOI: 10.11152/mu-4462

Ruifeng Liu

引用次数: 0

A new form of severe acute localized reactions following intra-articular hyaluronic acid injections in knee osteoarthritis. A case report. 膝关节骨关节炎关节内注射透明质酸后的一种新的严重急性局部反应。病例报告。

Medical ultrasonography Pub Date : 2024-12-19 Epub Date: 2024-08-07 DOI: 10.11152/mu-4415

Daniela Fodor, Oana Serban, Sergiu Gabriel Macavei, Lucian Barbu Tudoran, Paula Bora, Maria Badarinza

引用次数: 0

History of contrast enhanced ultrasound (CEUS). 有造影剂增强超声（CEUS）检查史。

Medical ultrasonography Pub Date : 2024-12-19 Epub Date: 2024-04-26 DOI: 10.11152/mu-4366

Christoph F Dietrich, Thomas Albrecht, Harald Becher, Chris J Harvey, Christian Jenssen, Adrian K Lim, Kathleen Möller, Christian Greis

{"title":"History of contrast enhanced ultrasound (CEUS).","authors":"Christoph F Dietrich, Thomas Albrecht, Harald Becher, Chris J Harvey, Christian Jenssen, Adrian K Lim, Kathleen Möller, Christian Greis","doi":"10.11152/mu-4366","DOIUrl":"10.11152/mu-4366","url":null,"abstract":"The 50th year of the European Federation of Societies in Ultrasound in Medicine and Biology (EFSUMB) has been celebrated 2022 publishing articles on the history of US. Contrast enhanced ultrasound (CEUS) allows to visualize blood flow and tissue perfusion. CEUS has proven to be safe without risk of nephrotoxicity. The availability of a contrast agent (tracer) for ultrasound imaging allows for the first time a dynamic assessment of tissue perfusion (blood flow and wash-in/wash-out pattern) which is an essential part for the detection and characterisation of pathological tissue and abnormal organ function. It was an outstanding achievement of academic centers in close cooperation with EFSUMB to investigate and validate the clinical potential of this new technology for the diagnosis and monitoring of various diseases and to develop clinical guidelines based on an in-depth assessment of the existing scientific publications. An important part of the implementation of CEUS in clinical practice was the development of contrast-specific imaging modes on the ultrasound scanners (in close cooperation with the machine manufacturers), the optimization of the machine setups for contrast imaging and the education provided to clinical users in form of workshops, webinars, textbooks and scientific congresses.","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":"405-416"},"PeriodicalIF":0.0,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141160128","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's role in differentiating camptodactyly-arthropathy-coxa vara-pericarditis (CACP) syndrome from inflammatory arthritis in children. A narrative review. 超声在鉴别儿童喜树趾-关节病-髋外翻-心包炎（CACP）综合征与炎性关节炎中的作用。叙述性评论

Medical ultrasonography Pub Date : 2024-12-19 DOI: 10.11152/mu-4452

Mihaela Sparchez, Daniela Fodor

引用次数: 0

Doppler ultrasound in the era of angiography. 血管造影时代的多普勒超声。

Medical ultrasonography Pub Date : 2024-12-19 DOI: 10.11152/mu-4463

Bogdan-Augustin Chis

引用次数: 0