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Congenital coarctation of the aorta: Role of peripheral vascular ultrasound in young hypertensive patients. 先天性主动脉闭塞:外周血管超声在年轻高血压患者中的作用。
IF 1.3 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-10-30 eCollection Date: 2024-01-01 DOI: 10.1055/a-2436-1007
Wen Zhou, Shunji Gao, Rui Du, Huijuan Xiang, Yuejuan Gao, Wenhong Gao
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引用次数: 0
Lung ultrasound score for the assessment of lung aeration in ARDS patients: comparison of two approaches. 用于评估 ARDS 患者肺通气情况的肺部超声波评分:两种方法的比较。
IF 1.3 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-10-21 eCollection Date: 2024-01-01 DOI: 10.1055/a-2421-8709
Silvia Mongodi, Davide Chiumello, Francesco Mojoli

Purpose  A 4-step lung ultrasound (LUS) score has been previously used to quantify lung density. We compared 2 versions of this scoring system for distinguishing severe from moderate loss of aeration in ARDS: coalescence-based score (cLUS) vs. quantitative-based score (qLUS - >50% pleura occupied by artefacts). Materials and Methods   We compared qLUS and cLUS to lung density measured by quantitative CT scan in 12 standard thoracic regions. A simplified approach (1 scan per region) was compared to an extensive one (regional score computed as the mean of all relevant intercostal space scores). Results   We examined 13 conditions in 7 ARDS patients (7 at PEEP 5, 6 at PEEP 15 cmH2O-156 regions, 398 clips). Switching from cLUS to qLUS resulted in a change in interpretation in 117 clips (29.4%, 1-point reduction) and in 41.7% of the regions (64 decreases (range 0.2-1), 1 increase (0.2 points)). Regional qLUS showed very strong correlation with lung density (rs=0.85), higher than cLUS (rs=0.79; p=0.010). The agreement with CT classification in well aerated, poorly aerated, and not aerated tissue was moderate for cLUS (agreement 65.4%; Cohen's K coefficient 0.475 (95%CI 0.391-0.547); p<0.0001) and substantial for qLUS (agreement 81.4%; Cohen's K coefficient 0.701 (95%CI 0.653-0.765), p<0.0001). The agreement between single spot and extensive approaches was almost perfect (cLUS: agreement 89.1%, Cohen's kappa coefficient 0.840 (95%CI 0.811-0.911), p<0.0001; qLUS: agreement 86.5%, Cohen's kappa coefficient 0.819 (95%CI 0.761-0.848), p<0.0001). Conclusion   A LUS score based on the percentage of occupied pleura performs better than a coalescence-based approach for quantifying lung density. A simplified approach performs as well as an extensive one.

目的 以前曾使用四步肺超声(LUS)评分来量化肺密度。我们比较了该评分系统的两个版本,以区分 ARDS 通气严重丧失和中度丧失:基于凝聚的评分(cLUS)与基于定量的评分(qLUS - >50% 胸膜被伪影占据)。材料和方法 我们将 qLUS 和 cLUS 与通过定量 CT 扫描测量的 12 个标准胸腔区域的肺密度进行了比较。我们将简化方法(每个区域扫描 1 次)与广泛方法(区域评分计算为所有相关肋间隙评分的平均值)进行了比较。结果 我们对 7 例 ARDS 患者的 13 种情况进行了检查(7 例 PEEP 为 5,6 例 PEEP 为 15 cmH2O-156 个区域,398 个片段)。从 cLUS 到 qLUS 的转换导致 117 个片段(29.4%,减少 1 分)和 41.7% 的区域(64 个减少(范围 0.2-1),1 个增加(0.2 分))的解释发生变化。区域 qLUS 与肺密度的相关性非常强(rs=0.85),高于 cLUS(rs=0.79;p=0.010)。cLUS 与 CT 对通气良好、通气不良和不通气组织分类的一致性为中等(一致性 65.4%;Cohen's K 系数 0.475 (95%CI 0.391-0.547);p 结论 在量化肺密度方面,基于胸膜占位百分比的 LUS 评分优于基于凝聚的方法。简化方法和广泛方法的效果一样好。
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引用次数: 0
Pancreatic ultrasound: An update of measurements, reference values, and variations of the pancreas. 胰腺超声:更新胰腺的测量值、参考值和变化。
IF 1.3 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-10-14 eCollection Date: 2024-01-01 DOI: 10.1055/a-2389-9085
Jennifer Meier, Claudia Lucius, Kathleen Möller, Christian Jenssen, Constantinos Zervides, Anna Maria Gschmack, Yi Dong, David Srivastava, Christoph F Dietrich

Reliable and reproducible measurement methods have been established, and reference values are used in almost all scientific disciplines. Knowledge of reference values is crucial to distinguish physiological from pathological processes and, therefore, subsequently, for the clinical management of patients. Image storage and documentation of measurements and normal findings should be part of quality assurance in imaging. This paper aims to review the published literature and provide current knowledge of sonographic measurements and reference values of the pancreas. Moreover, the role of clinical influencing factors such as age, gender, constitution, and ethnicity is also analyzed.

可靠、可重复的测量方法已经确立,参考值几乎用于所有科学学科。参考值的知识对于区分生理过程和病理过程至关重要,因此对于患者的临床管理也至关重要。图像存储和记录测量结果和正常结果应成为成像质量保证的一部分。本文旨在回顾已发表的文献,提供有关胰腺超声测量和参考值的最新知识。此外,还分析了年龄、性别、体质和种族等临床影响因素的作用。
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引用次数: 0
Ultrasound elastography: a brief clinical history of an evolving technique. 超声弹性成像:一项不断发展的技术的临床简史。
IF 1.3 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-10-09 eCollection Date: 2024-01-01 DOI: 10.1055/a-2378-6926
Christoph F Dietrich, Yi Dong, Xin-Wu Cui, Mathias Fink, Christian Jenssen, Kathleen Moeller, Laurent Sandrin, Sugimoto Tsuneyoshi, Mickael Tanter

The history of the emerging elastographic technique is presented. Ultrasound imaging of elasticity and tissue strain has gained clinical acceptance as an established technique useful in routine daily clinical practice.

介绍了新出现的弹性成像技术的历史。超声弹性成像和组织应变成像已被临床广泛接受,成为日常临床实践中的一项成熟技术。
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引用次数: 0
Insights Into Modern Undergraduate Ultrasound Education: Prospective Comparison of Digital and Analog Teaching Resources in a Flipped Classroom Concept - The DIvAN Study. 现代本科超声教育的启示:翻转课堂概念中数字和模拟教学资源的前瞻性比较 - DIvAN 研究。
IF 1.3 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-10-09 eCollection Date: 2024-01-01 DOI: 10.1055/a-2389-9410
Johannes M Weimer, Florian Recker, Leonie Horn, Julian Kuenzel, Klaus Dirks, Carlotta Ille, Holger Buggenhagen, Norbert Börner, Andreas Michael Weimer, Thomas Vieth, Liv Lorenz, Maximilian Rink, Daniel Merkel, Anna Dionysopoulou, Michael Ludwig, Roman Kloeckner, Julia Weinmann-Menke, Lukas Müller

Purpose   Sonography training has become an important part of university medicine courses. This study explores the impact of digital and analog teaching resources on learning outcomes, knowledge retention, and student preferences and motivation in a flipped classroom setting. Materials and Methods   This prospective controlled study involving two groups of third-year medical students included a voluntary three-day compact ultrasound course given in a flipped classroom, comprising 26 teaching units of 45 minutes each. Hardcopy lecture notes (control group) and E-learning (study group) were used as teaching resources. Evaluations were conducted before (pre) and during the preparation phase (intermediate), and after (post) the face-to-face course. Likert scale responses, written theory tests with very short answer questions (Theorypre, Theoryinter, Theorypost), and practical examinations (Practiceinter, Practicepost) were used for student self-assessment and to measure attitude, motivation, as well as theoretical and practical skills. Results   A total of N=236 complete data sets (study group n=136; control group n=100) were analyzed. Both groups showed an equivalent initial level of, and a continuous and significant (p<0.01) increase in, subjective and objective skills over the evaluated time frame. The study group achieved significantly (p<0.05) better results in Theoryinter, Theorypost, Practiceinter, and Practicepost. The study group evaluated their teaching resource and the training concept significantly (p<0.05) better. Conclusion   The integration of digital resources into sonography education provides comparable learning outcomes to traditional analog materials, enhancing the preparatory phase. In the future, digitally supported training should be used more.

目的 超声造影培训已成为大学医学课程的重要组成部分。本研究探讨了在翻转课堂环境下,数字和模拟教学资源对学习效果、知识保留、学生偏好和学习动机的影响。材料与方法 这项前瞻性对照研究涉及两组三年级医学生,包括在翻转课堂上自愿开设的为期三天的紧凑型超声课程,共有 26 个教学单元,每个单元 45 分钟。硬拷贝讲义(对照组)和电子学习(学习组)被用作教学资源。在面授课程之前(前)、准备阶段(中)和之后(后)进行了评估。采用李克特量表、带简答题的书面理论测试(理论前、理论中、理论后)和实践考试(实践中、实践后)对学生进行自我评估,衡量学生的态度、学习动机以及理论和实践技能。结果 共分析了 N=236 组完整数据(研究组 n=136;对照组 n=100)。研究组和对照组的初始水平相当,且具有持续性和显著性(p 结论 将数字资源整合到超声造影教育中,可提供与传统模拟材料相当的学习成果,从而加强预备阶段的学习。今后,应更多地使用数字支持培训。
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引用次数: 0
Ultrasonographic Evaluation of Morphological Changes in Peripheral Nerves after Traumatic Injury and Nerve Repair - A Prospective Study. 外伤和神经修复后周围神经形态变化的超声评估 - 一项前瞻性研究。
IF 1.3 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-09-06 eCollection Date: 2024-01-01 DOI: 10.1055/a-2378-6902
Léna G Dietrich, Bettina Juon, Christian Wirtz, Esther Vögelin

Purpose  Ultrasound (US) has gained in importance for the visualization of morphological changes of injured nerves. After surgical repair, changes in neural structures are seen over time. The correlation of morphologic changes in US with the corresponding nerve function is uncertain. The aim of this study is to determine a correlation of post-traumatic morphological nerve changes with US and with nerve function after surgery. Materials and Methods  This dual-center, prospective cohort study was conducted between 2017 and 2022 and included 20 mixed sensory motor nerve lesions. Patients were followed up clinically (sensitivity, pain, and motor function) with US and electroneuromyography. We determined the US changes of the nerves including the interaction of the tissue after nerve repair and any correlation with nerve function. With US nerve cross-sectional area (CSA), the number of traversing fascicles, hypo-echogenicity, and presence of perineural scar were analyzed. Results  20 lesions (12 median and 8 ulnar nerves) of 18 patients with intraoperatively confirmed nerve injury of at least 50% in the forearm were included. The average CSA was over 20 mm 2 throughout the follow-up period, corresponding to a neuroma in continuity compared to the opposite side (10.75 mm 2 ). Sensibility and motor function at 12 months were 6xS3/4 and 10xM3-5. There was a statistically significant correlation between continuous fascicles on US at 6 months and sensitivity at 12 months. Conclusion  This study supports the presence of post-traumatic morphological changes in nerve fibers with US after traumatic injury. Morphological changes in nerve structure after trauma can be detected with US indicating a correlation between continuity of nerve fascicles and development of sensitivity and motor function.

目的 超声波(US)在观察损伤神经形态变化方面的重要性日益凸显。手术修复后,随着时间的推移,神经结构会发生变化。US 形态学变化与相应神经功能的相关性尚不确定。本研究旨在确定创伤后神经形态学变化与 US 和手术后神经功能的相关性。材料与方法 这项双中心、前瞻性队列研究于 2017 年至 2022 年间进行,共纳入 20 例混合感觉运动神经损伤患者。对患者进行了临床随访(敏感度、疼痛和运动功能),并进行了 US 和电神经肌电图检查。我们确定了神经的 US 变化,包括神经修复后组织的相互作用以及与神经功能的相关性。通过 US 神经横截面积 (CSA)、穿过的神经束数量、低回声和神经周围瘢痕的存在进行分析。结果 纳入了术中证实前臂神经损伤至少达 50%的 18 名患者的 20 个病灶(12 个正中神经和 8 个尺神经)。在整个随访期间,平均 CSA 超过 20 mm 2,与对侧(10.75 mm 2)相比,神经瘤具有连续性。12 个月时的感觉和运动功能分别为 6xS3/4 和 10xM3-5。6 个月时 US 显示的连续筋膜与 12 个月时的灵敏度之间存在统计学意义上的显著相关性。结论 本研究证实,外伤后神经纤维的 US 存在外伤后形态学变化。通过 US 可以检测到创伤后神经结构的形态变化,这表明神经束的连续性与灵敏度和运动功能的发展之间存在相关性。
{"title":"Ultrasonographic Evaluation of Morphological Changes in Peripheral Nerves after Traumatic Injury and Nerve Repair - A Prospective Study.","authors":"Léna G Dietrich, Bettina Juon, Christian Wirtz, Esther Vögelin","doi":"10.1055/a-2378-6902","DOIUrl":"https://doi.org/10.1055/a-2378-6902","url":null,"abstract":"<p><p><b>Purpose</b>  Ultrasound (US) has gained in importance for the visualization of morphological changes of injured nerves. After surgical repair, changes in neural structures are seen over time. The correlation of morphologic changes in US with the corresponding nerve function is uncertain. The aim of this study is to determine a correlation of post-traumatic morphological nerve changes with US and with nerve function after surgery. <b>Materials and Methods</b>  This dual-center, prospective cohort study was conducted between 2017 and 2022 and included 20 mixed sensory motor nerve lesions. Patients were followed up clinically (sensitivity, pain, and motor function) with US and electroneuromyography. We determined the US changes of the nerves including the interaction of the tissue after nerve repair and any correlation with nerve function. With US nerve cross-sectional area (CSA), the number of traversing fascicles, hypo-echogenicity, and presence of perineural scar were analyzed. <b>Results</b>  20 lesions (12 median and 8 ulnar nerves) of 18 patients with intraoperatively confirmed nerve injury of at least 50% in the forearm were included. The average CSA was over 20 mm <sup>2</sup> throughout the follow-up period, corresponding to a neuroma in continuity compared to the opposite side (10.75 mm <sup>2</sup> ). Sensibility and motor function at 12 months were 6xS3/4 and 10xM3-5. There was a statistically significant correlation between continuous fascicles on US at 6 months and sensitivity at 12 months. <b>Conclusion</b>  This study supports the presence of post-traumatic morphological changes in nerve fibers with US after traumatic injury. Morphological changes in nerve structure after trauma can be detected with US indicating a correlation between continuity of nerve fascicles and development of sensitivity and motor function.</p>","PeriodicalId":44852,"journal":{"name":"Ultrasound International Open","volume":"10 ","pages":"a23786902"},"PeriodicalIF":1.3,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11472627/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142477176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Introducing and Validating the Cranial-Dorsal-Hip Angle (∠CDH): A Method for Accurate Fetal Position Assessment in the First Trimester and Future AI Applications. 介绍并验证颅背臀角(∠CDH):妊娠头三个月胎位准确评估方法及未来人工智能应用。
IF 1.3 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-06-24 eCollection Date: 2024-01-01 DOI: 10.1055/a-2337-0078
Ying Tan, Huaxuan Wen, Guiyan Peng, Huiying Wen, Xin Wen, Yao Jiang, Jiaqi Fan, Ying Yuan, Dandan Luo, Shengli Li

Purpose  To introduce the cranial-dorsal-hip angle (∠CDH) as a novel quantitative tool for assessing fetal position in the first trimester and to validate its feasibility for future AI applications. Materials and Methods  2520 first-trimester fetal NT exams with 2582 CRL images (January-August 2022) were analyzed at a tertiary hospital as the pilot group. Additionally, 1418 cases with 1450 fetal CRL images (September-December 2022) were examined for validation. Three expert sonographers defined a standard for fetal positions. ∠CDH measurements, conducted by two ultrasound technicians, were validated for consistency using Bland-Altman plots and the intra-class correlation coefficient (ICC). This method allowed for categorizing fetal positions as hyperflexion, neutral, and hyperextension based on ∠CDH. Comparative accuracy was assessed against Ioannou, Wanyonyi, and Roux methods using the weighted Kappa coefficient (k value). Results  The pilot group comprised 2186 fetal CRL images, and the validation group included 1193 images. Measurement consistency was high (ICCs of 0.993; P<0.001). The established 95% reference range for ∠CDH in the neutral fetal position was 118.3° to 137.8°. The ∠CDH method demonstrated superior accuracy over the Ioannou, Wanyonyi, and Roux methods in both groups, with accuracy rates of 94.5% (k values: 0.874, 95%CI: 0.852-0.896) in the pilot group, and 92.6% (k values: 0.838, 95%CI: 0.806-0.871) in the validation group. Conclusion  The ∠CDH method has been validated as a highly reproducible and accurate technique for first-trimester fetal position assessment. This sets the stage for its potential future integration into intelligent assessment models.

目的 将颅背臀角(∠CDH)作为评估头三个月胎位的新型定量工具,并验证其在未来人工智能应用中的可行性。材料与方法 以一家三甲医院为试验组,分析了 2520 例初产妇胎儿 NT 检查和 2582 张 CRL 图像(2022 年 1 月至 8 月)。此外,还对 1418 个病例的 1450 张胎儿 CRL 图像(2022 年 9 月至 12 月)进行了验证。三位专业超声技师确定了胎位的标准。由两名超声技术人员进行的∠CDH测量使用布兰-阿尔特曼图和类内相关系数(ICC)验证其一致性。这种方法可根据∠CDH 将胎位分为过屈、中立和过伸。使用加权卡帕系数(k 值)评估了与 Ioannou、Wanyonyi 和 Roux 方法的比较准确性。结果 试验组包括 2186 张胎儿 CRL 图像,验证组包括 1193 张图像。测量的一致性很高(ICCs 为 0.993;PConclusion ∠CDH 方法已被验证为一种用于初产妇胎位评估的高度可重复性和准确性的技术。这为将来将其纳入智能评估模型奠定了基础。
{"title":"Introducing and Validating the Cranial-Dorsal-Hip Angle (∠CDH): A Method for Accurate Fetal Position Assessment in the First Trimester and Future AI Applications.","authors":"Ying Tan, Huaxuan Wen, Guiyan Peng, Huiying Wen, Xin Wen, Yao Jiang, Jiaqi Fan, Ying Yuan, Dandan Luo, Shengli Li","doi":"10.1055/a-2337-0078","DOIUrl":"https://doi.org/10.1055/a-2337-0078","url":null,"abstract":"<p><p><b>Purpose</b>  To introduce the cranial-dorsal-hip angle (∠CDH) as a novel quantitative tool for assessing fetal position in the first trimester and to validate its feasibility for future AI applications. <b>Materials and Methods </b> 2520 first-trimester fetal NT exams with 2582 CRL images (January-August 2022) were analyzed at a tertiary hospital as the pilot group. Additionally, 1418 cases with 1450 fetal CRL images (September-December 2022) were examined for validation. Three expert sonographers defined a standard for fetal positions. ∠CDH measurements, conducted by two ultrasound technicians, were validated for consistency using Bland-Altman plots and the intra-class correlation coefficient (ICC). This method allowed for categorizing fetal positions as hyperflexion, neutral, and hyperextension based on ∠CDH. Comparative accuracy was assessed against Ioannou, Wanyonyi, and Roux methods using the weighted Kappa coefficient (k value). <b>Results </b> The pilot group comprised 2186 fetal CRL images, and the validation group included 1193 images. Measurement consistency was high (ICCs of 0.993; P<0.001). The established 95% reference range for ∠CDH in the neutral fetal position was 118.3° to 137.8°. The ∠CDH method demonstrated superior accuracy over the Ioannou, Wanyonyi, and Roux methods in both groups, with accuracy rates of 94.5% (k values: 0.874, 95%CI: 0.852-0.896) in the pilot group, and 92.6% (k values: 0.838, 95%CI: 0.806-0.871) in the validation group. <b>Conclusion</b>  The ∠CDH method has been validated as a highly reproducible and accurate technique for first-trimester fetal position assessment. This sets the stage for its potential future integration into intelligent assessment models.</p>","PeriodicalId":44852,"journal":{"name":"Ultrasound International Open","volume":"10 ","pages":"a23370078"},"PeriodicalIF":1.3,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11208982/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141471472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Contrast-enhanced ultrasound features of hepatic angiomyolipoma: comparison with AFP-negative and non-viral hepatocellular carcinoma. 肝血管肌脂肪瘤的对比增强超声特征:与 AFP 阴性和非病毒性肝细胞癌的比较。
IF 1.3 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-06-14 eCollection Date: 2024-01-01 DOI: 10.1055/a-2318-6654
Yafang Zhang, Zhi-Xing Guo, Ying Liao, Yiwen Yu, Ruohan Guo, Xu Han, Lilong Lan, Jianhua Zhou

Purpose  This study aimed to compare contrast-enhanced ultrasound (CEUS) features of hepatic angiomyolipoma (HAML) and challenging cases of HCC, mainly those with no hepatitis infection but also with a low level of AFP (non-viral AFP- HCC). Materials and Methods  The study included pathologically confirmed HAMLs and non-viral AFP- HCCs undergoing CEUS from 2012 to 2023. Sonovue (SV) CEUS and Sonazoid (SZ) CEUS characteristics of the two groups were compared. Results  The study included 50 HAMLs (24% on SZ-CEUS) and 88 non-viral AFP- HCCs (21.6% on SZ-CEUS). The CEUS characteristics on SZ-CEUS were similar to those on SV-CEUS to a certain extent. HAMLs more frequently displayed no washout and partial washout with partial no washout, so-called PWNW, in the late phase and post-vascular phase, whereas HCCs more commonly exhibited mild washout. In the post-vascular phase, all non-viral AFP- HCCs exhibited washout, thereby facilitating differentiation from no-washoutHAMLs, superior to SV-CEUS, where some non-viral AFP- HCCs still exhibited no washout in late phase that could not be distinguished from HAMLs. It is noteworthy that PWNW was exclusively found in nodules exhibiting hyper- and hypoechoic separation of the nodules, and hyper- and hypoechoic separation of HAMLs in the post-vascular phase on SZ-CEUS demonstrated PWNW more frequently compared to the late phase, which can potentially help distinguish nodules with hyper- and hypoechoic separation as either HAML or non-viral AFP- HCC. Conclusion: This study highlighted the usefulness of SV- and SZ-CEUS for distinguishing HAML and non-viral AFP- HCC and filled in existing gaps regarding the SZ-CEUS features of HAML.

目的 本研究旨在比较对比增强超声(CEUS)检查肝血管脂肪瘤(HAML)和具有挑战性的 HCC 病例(主要是那些没有肝炎感染但 AFP 水平较低的病例(非病毒性 AFP- HCC))的特征。材料与方法 该研究纳入了 2012 年至 2023 年期间接受 CEUS 检查并经病理证实的 HAML 和非病毒性 AFP- HCC。比较两组患者的Sonovue(SV)CEUS和Sonazoid(SZ)CEUS特征。结果 研究包括50例HAML(SZ-CEUS为24%)和88例非病毒性AFP- HCC(SZ-CEUS为21.6%)。SZ-CEUS 的 CEUS 特征在一定程度上与 SV-CEUS 相似。在晚期和血管后阶段,HAML更常表现为无冲洗和部分冲洗与部分无冲洗,即所谓的PWNW,而HCC则更常表现为轻度冲洗。在血管后阶段,所有非病毒 AFP- HCC 都表现出冲洗,从而有助于与无冲洗 HAML 区分开来,而在 SV-CEUS 中,一些非病毒 AFP- HCC 在晚期阶段仍表现出无冲洗,无法与 HAML 区分开来。值得注意的是,PWNW 只出现在结节出现高回声和低回声分离的结节中,而在 SZ-CEUS 上,HAML 在血管后阶段的高回声和低回声分离比晚期阶段更频繁地表现出 PWNW,这可能有助于将出现高回声和低回声分离的结节区分为 HAML 或非病毒 AFP- HCC。结论本研究强调了 SV- 和 SZ-CEUS 在区分 HAML 和非病毒 AFP- HCC 方面的作用,并填补了有关 HAML SZ-CEUS 特征的现有空白。
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引用次数: 0
Evidence-based Ultrasound Education? - A Systematic Literature Review of Undergraduate Ultrasound Training Studies. 循证超声教育?- 本科生超声培训研究的系统文献综述。
IF 1.3 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-03-26 eCollection Date: 2024-01-01 DOI: 10.1055/a-2275-0702
Ricarda Neubauer, Claus Juergen Bauer, Christoph F Dietrich, Brigitte Strizek, Valentin Sebastian Schäfer, Florian Recker

Despite a large number of studies previously conducted on educational concepts of ultrasound teaching in medical school, various controversial issues remain. Currently, recommendations for ultrasound curricula that aim to standardize ultrasound teaching are frequently based on expert panel advice instead of relying on valid evidence-based literature. In December 2022, a systematic literature review on the subject of undergraduate ultrasound education was conducted. All ultrasound studies listed in the PubMed and Google Scholar medical databases were filtered and analyzed with respect to various aspects of their methodological conduct and curricular implementation. A total of 259 publications were considered in the data synthesis, including 145 teaching studies in the field of undergraduate ultrasound education. The latter encompassed 58 (40%) studies that did not compare their ultrasound training to a control group. Furthermore, 84 (58%) of these studies did not assess knowledge prior to the applied ultrasound training, neglecting this factor's potential influence on study outcomes. Despite a great interest in the development and further implementation of ultrasound education during medical school, this process is still compromised by significant deficiencies in studies that have been conducted in the past. In order to provide a valid basis for curricular decisions, teaching studies should fulfill essential methodological requirements despite the multifactorial framework in which they are conducted. In the future, a guide for the design of ultrasound studies could be a useful aid for ultrasound enthusiasts and promote scientific knowledge gain.

尽管此前对医学院超声教学的教育理念进行了大量研究,但仍存在各种争议问题。目前,旨在规范超声教学的超声课程建议往往是基于专家小组的建议,而不是基于有效的循证文献。2022 年 12 月,一项关于本科超声教学的系统性文献综述展开了研究。对PubMed和Google Scholar医学数据库中列出的所有超声研究进行了筛选,并对其方法论实施和课程实施的各个方面进行了分析。数据综合共考虑了 259 篇出版物,其中包括 145 篇本科生超声波教育领域的教学研究。后者包括 58 项(40%)没有将超声培训与对照组进行比较的研究。此外,这些研究中有 84 项(58%)没有对应用超声培训前的知识进行评估,忽略了这一因素对研究结果的潜在影响。尽管人们对医学院校超声波教育的发展和进一步实施抱有极大的兴趣,但由于过去开展的研究存在重大缺陷,这一过程仍受到影响。为了给课程决策提供有效依据,尽管教学研究是在多因素框架下进行的,但仍应满足基本的方法学要求。未来,超声研究的设计指南将成为超声爱好者的有益帮助,并促进科学知识的获取。
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引用次数: 0
Neurosonology Survey in Europe and Beyond. 欧洲及其他地区的神经生理学调查。
IF 3.2 Q3 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING Pub Date : 2024-02-23 eCollection Date: 2024-01-01 DOI: 10.1055/a-2243-9625
Claudio Baracchini, Elsa Azevedo, Uwe Walter, João Sargento-Freitas, Branko Malojcic

Purpose  To provide an overview on education, training, practice requirements, and fields of application of neurosonology in Europe and beyond. Materials and Methods  National representatives and experts in neurosonology were surveyed regarding neurosonology requirements and practice in their countries. Descriptive statistics were used to report the data. Results  Between February 1 and March 31, 2023, 42/46 (91.3%) national representatives responded to our questionnaire and the completion rate was 100%. Most countries (71.4%) offer a neurosonology training program during neurology residency, but it is part of the undergraduate medical program only in 30.9%. National certification is available in 47.6% of the countries surveyed and most countries (76.2%) require certification to practice. In 50% of the countries, candidates are assessed by a board examination, while in 26.2% they just need to document their practice. There is no formal accreditation of neurosonology centers in 78.6% of the countries surveyed. Only a few require certified personnel and appropriate equipment. Adequate teaching and research activities are only rarely necessary elements for laboratory accreditation. Conclusion  Our results indicate that there is a substantial need for transnational harmonization of neurosonological standards to guarantee uniformity and quality of performance. This survey will also provide guidance to promote an international accrediting council and create a quality-controlled laboratory network for implementing neurosonology in clinical trials.

目的 概述欧洲及其他地区神经电生理学的教育、培训、实践要求和应用领域。材料和方法 对各国神经电生理学的代表和专家进行了关于本国神经电生理学要求和实践的调查。数据报告采用描述性统计方法。结果 在 2023 年 2 月 1 日至 3 月 31 日期间,42/46(91.3%)个国家的代表回复了我们的问卷,完成率为 100%。大多数国家(71.4%)在神经病学住院医师培训期间提供神经电生理学培训课程,但只有 30.9% 的国家将其作为本科医学课程的一部分。在接受调查的国家中,47.6%的国家提供国家认证,大多数国家(76.2%)要求获得认证后才能执业。在 50% 的国家中,候选人要通过委员会考试进行评估,而在 26.2% 的国家中,他们只需提供执业证明文件即可。在接受调查的国家中,78.6%的国家没有对神经超声中心进行正式认证。只有少数国家要求有经过认证的人员和适当的设备。充足的教学和研究活动很少成为实验室认证的必要条件。结论 我们的调查结果表明,亟需跨国统一神经电生理标准,以保证工作的统一性和质量。这项调查还将为促进国际认证委员会的发展提供指导,并为在临床试验中实施神经电生理学建立一个质量受控的实验室网络。
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引用次数: 0
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Ultrasound International Open
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