Ultrasound International Open最新文献

{"title":"Congenital coarctation of the aorta: Role of peripheral vascular ultrasound in young hypertensive patients.","authors":"Wen Zhou, Shunji Gao, Rui Du, Huijuan Xiang, Yuejuan Gao, Wenhong Gao","doi":"10.1055/a-2436-1007","DOIUrl":"https://doi.org/10.1055/a-2436-1007","url":null,"abstract":"","PeriodicalId":44852,"journal":{"name":"Ultrasound International Open","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11533725/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142576990","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}

{"title":"Lung ultrasound score for the assessment of lung aeration in ARDS patients: comparison of two approaches.","authors":"Silvia Mongodi, Davide Chiumello, Francesco Mojoli","doi":"10.1055/a-2421-8709","DOIUrl":"https://doi.org/10.1055/a-2421-8709","url":null,"abstract":"<p><p><b>Purpose</b>  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). <b>Materials and Methods</b>   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). <b>Results</b>   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). <b>Conclusion</b>   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.</p>","PeriodicalId":44852,"journal":{"name":"Ultrasound International Open","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11497101/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142510027","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}

{"title":"Pancreatic ultrasound: An update of measurements, reference values, and variations of the pancreas.","authors":"Jennifer Meier, Claudia Lucius, Kathleen Möller, Christian Jenssen, Constantinos Zervides, Anna Maria Gschmack, Yi Dong, David Srivastava, Christoph F Dietrich","doi":"10.1055/a-2389-9085","DOIUrl":"https://doi.org/10.1055/a-2389-9085","url":null,"abstract":"<p><p>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.</p>","PeriodicalId":44852,"journal":{"name":"Ultrasound International Open","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11475099/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142477175","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}

{"title":"Ultrasound elastography: a brief clinical history of an evolving technique.","authors":"Christoph F Dietrich, Yi Dong, Xin-Wu Cui, Mathias Fink, Christian Jenssen, Kathleen Moeller, Laurent Sandrin, Sugimoto Tsuneyoshi, Mickael Tanter","doi":"10.1055/a-2378-6926","DOIUrl":"https://doi.org/10.1055/a-2378-6926","url":null,"abstract":"<p><p>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.</p>","PeriodicalId":44852,"journal":{"name":"Ultrasound International Open","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11472523/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142477177","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}

{"title":"Insights Into Modern Undergraduate Ultrasound Education: Prospective Comparison of Digital and Analog Teaching Resources in a Flipped Classroom Concept - The DIvAN Study.","authors":"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","doi":"10.1055/a-2389-9410","DOIUrl":"https://doi.org/10.1055/a-2389-9410","url":null,"abstract":"<p><p><b>Purpose</b>   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. <b>Materials and Methods</b>   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. <b>Results</b>   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. <b>Conclusion</b>   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.</p>","PeriodicalId":44852,"journal":{"name":"Ultrasound International Open","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11472524/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142477174","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}

{"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 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. <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":null,"pages":null},"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}

{"title":"Visually navigated, ultrasound-guided, freehand percutaneous calyceal\u0000 puncture – preclinical evaluation of a novel device to simplify a complex\u0000 surgical task","authors":"G. Wakileh, Manuel Hohmann, Marie Claire Rassweiler-Seyfried, J. Klein","doi":"10.1055/a-2324-7668","DOIUrl":"https://doi.org/10.1055/a-2324-7668","url":null,"abstract":"\u0000 Purpose Freehand sonographic percutaneous puncture techniques for the\u0000 renal calyceal system are on the rise. Much time and practice are required to\u0000 master this technique. Navigation-supported puncture aids could help make\u0000 percutaneous access easier and faster. The aim of this study was to determine\u0000 whether navigated puncture is feasible, and whether it is easier and faster\u0000 compared to the conventional sonographic procedure.\u0000 Materials & Methods We performed prospective free-hand percutaneous\u0000 puncture on a porcine kidney model embedded in gelatin using the Xperius\u0000 ultrasound system in combination with needle tracking with a Stimuplex Onvision\u0000 hollow needle, compared to the conventional freehand ultrasound puncture\u0000 technique. Punctures were performed by 25 participants using the ultrasound\u0000 machine with or without needle tracking mode.\u0000 Results Compared to the conventional approach, the navigated approach\u0000 reduced the number of puncture procedures by 0.2 attempts(8%) in the experienced\u0000 group. The time to calyx access was reduced by 15 seconds (26%). In the novice\u0000 group, navigated puncture required 1.2 fewer attempts (36%) and the time to\u0000 access was 70 seconds faster (61%). \u0000 Conclusion Puncture using the novel device is feasible. The number of\u0000 punctures and the time needed for successful access of the calyceal system was\u0000 reduced by use of navigation in both groups, although the trend was significant\u0000 only in the novice group. Navigation using needle tracking seems to help\u0000 beginners perform sonographic percutaneous puncture at a level similar to\u0000 experienced users. For a more precise analysis and validation, further studies\u0000 are needed.","PeriodicalId":44852,"journal":{"name":"Ultrasound International Open","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141648863","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}

{"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":null,"pages":null},"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}

{"title":"Contrast-enhanced ultrasound features of hepatic angiomyolipoma: comparison with AFP-negative and non-viral hepatocellular carcinoma.","authors":"Yafang Zhang, Zhi-Xing Guo, Ying Liao, Yiwen Yu, Ruohan Guo, Xu Han, Lilong Lan, Jianhua Zhou","doi":"10.1055/a-2318-6654","DOIUrl":"https://doi.org/10.1055/a-2318-6654","url":null,"abstract":"<p><p><b>Purpose</b>  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). <b>Materials and Methods</b>  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. <b>Results</b>  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.</p>","PeriodicalId":44852,"journal":{"name":"Ultrasound International Open","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11476071/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142477172","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}

{"title":"Patient perception of meander-like versus radial breast\u0000 ultrasound","authors":"P. Brasier-Lutz, C. Jäggi-Wickes, Sabine Schädelin, R. Burian, C. Schoenenberger, R. Zanetti-Dällenbach","doi":"10.1055/a-2282-9193","DOIUrl":"https://doi.org/10.1055/a-2282-9193","url":null,"abstract":"\u0000 Background Radial breast ultrasound scanning (r-US) and commonly used\u0000 meander-like ultrasound scanning (m-US) have recently been shown to be equally\u0000 sensitive and specific with regard to the detection of breast malignancies. As\u0000 patient satisfaction has a strong influence on patient compliance and thus on\u0000 the quality of health care, we compare here the two US scanning techniques with\u0000 regard to patient comfort during breast ultrasound (BUS) and analyze whether the\u0000 patient has a preference for either scanning technique. \u0000 Materials and Methods Symptomatic and asymptomatic women underwent both\u0000 m-US and r-US scanning by two different examiners. Patient comfort and\u0000 preference were assessed using a visual analog scale-based (VAS) questionnaire\u0000 and were compared using a Mann-Whitney U test.\u0000 Results Analysis of 422 VAS-based questionnaires showed that perceived\u0000 comfort with r-US (r-VAS 8 cm, IQR [5.3, 9.1]) was significantly higher compared\u0000 to m-US (m-VAS 5.6 cm, IQR [5.2, 7.4]) (p < 0.001). 53.8% of patients had no\u0000 preference, 44.3% of patients clearly preferred r-US, whereas only 1.9% of\u0000 patients preferred m-US. Conclusion: Patients experience a higher level of\u0000 comfort with r-US and favor r-US over m-US. As the diagnostic accuracy of r-US\u0000 has been shown to be comparable to that of m-US and the time required for\u0000 examination is shorter, a switch from m-US to r-US in routine clinical practice\u0000 might be beneficial. R-US offers considerable potential to positively affect\u0000 patient compliance but also to save examination time and thus costs.","PeriodicalId":44852,"journal":{"name":"Ultrasound International Open","volume":null,"pages":null},"PeriodicalIF":3.2,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140676390","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}