Yongfeng Zhao, Ping Zhou, Wenhui Zhu, Jidong Xiao, Wengang Liu, Yingchun Luo, Junhui Zhang, Lan Yang, Yan Xu, Xiaohong Tang
{"title":"Validity evidence for simulator-based obstetric ultrasound competency assessment tool: a multi-center study.","authors":"Yongfeng Zhao, Ping Zhou, Wenhui Zhu, Jidong Xiao, Wengang Liu, Yingchun Luo, Junhui Zhang, Lan Yang, Yan Xu, Xiaohong Tang","doi":"10.1055/a-2122-6746","DOIUrl":"10.1055/a-2122-6746","url":null,"abstract":"<p><strong>Purpose: </strong>To collect validity evidence for a simulator-based obstetric ultrasound competency assessment tool (OUCAT).</p><p><strong>Methods: </strong>89 sonographers from three centers (XY, MC, DT), including novices (n=21), experienced trainees (n=44), and experts (n=24), participated in the competency assessment. Validity evidence of OUCAT was collected according to Standards for Educational and Psychological Testing. Content validity was ensured by reviewing guidelines and reaching expert consensus. The response process was ensured via training raters. Internal structure was explored through internal consistency, inter-rater reliability, and test-retest reliability. Relations to other variables were explored by comparing OUCAT scores of sonographers with different experience. Evidence for consequences was collected by determining the pass/fail level.</p><p><strong>Results: </strong>OUCAT included 123 items, of which 117 items could effectively distinguish novices from experts (P<0.05). The internal consistency was represented by the Cronbach's α coefficient (0.978). The inter-rater reliability was high, with XY being 0.868, MC being 0.877, and DT being 0.937 (P<0.001). Test-retest reliability was 0.732 (P=0.001). The performance of experts was significantly better than experienced trainees, and the performance of experienced trainees was significantly better than novices (70.3±10.7 vs. 39.8±15.0 vs. 20.5±10.6, P<0.001). The pass/fail level determined by contrast group method was 45 points. The passing rate of novices, experienced trainees and experts was 0% (0/21), 31.8% (14/44), and 100% (24/24), respectively.</p><p><strong>Conclusion: </strong>Simulator-based OUCAT exhibits good reliability and validity in assessing obstetric ultrasound skills.</p>","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":" ","pages":"168-175"},"PeriodicalIF":3.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9752124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marco La Verde, Marco Torella, Carlo Ronsini, Gaetano Riemma, Luigi Cobellis, Maria Maddalena Marrapodi, Carlo Capristo, Agnese Maria Chiara Rapisarda, Maddalena Morlando, Pasquale De Franciscis
{"title":"The association between fetal Doppler and uterine artery blood volume flow in term pregnancies: a pilot study.","authors":"Marco La Verde, Marco Torella, Carlo Ronsini, Gaetano Riemma, Luigi Cobellis, Maria Maddalena Marrapodi, Carlo Capristo, Agnese Maria Chiara Rapisarda, Maddalena Morlando, Pasquale De Franciscis","doi":"10.1055/a-2075-3021","DOIUrl":"10.1055/a-2075-3021","url":null,"abstract":"<p><strong>Purpose: </strong>To investigate the relationship between uterine artery blood volume flow and fetal Doppler indices in term pregnancies.</p><p><strong>Materials and methods: </strong>A prospective observational study in a tertiary-care university hospital was performed between December 2021 and May 2022. We included only term pregnancies that received accurate ultrasound scans until a week before the birth. The uterine artery (UtA) diameter and UtA volume blood flow were estimated and recorded. The volume of each artery was summed to obtain the total uterine artery volume blood flow (QUtA). The following fetal Doppler indices were evaluated: Umbilical artery (UA), middle cerebral artery (MCA), ductus venosus (DV), and cerebroplacental ratio (CPR). Linear regression analysis was performed to investigate the relationship between the QUtA and the fetal Doppler indices.</p><p><strong>Results: </strong>49 pregnancies were included. The UA pulsatility index (PI) analysis showed a significant association with QUtA (r2=0.40, p=0.01), demonstrating a decrease of the UA PI when the QUtA increased. The same relationship was noted between the UtA mean PI and QUtA (r2=0.41, p=0.005). A weak correlation between the newborn weight and the QUtA was also noted (r2=0.31, p=0.048), with an elevated newborn weight when the QUtA was high.</p><p><strong>Conclusion: </strong>This study showed that UA, UtA PI, and birth weight seem to be linked to QUtA. QUtA had an inverse correlation with UA and UtA PI. In addition, increasing the QUtA showed a linear increase in fetal birth weight. These findings could be helpful in high-risk pregnancy management, but additional research is needed to identify how QUtA in the third trimester impacts labor and fetal outcomes.</p>","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":" ","pages":"184-189"},"PeriodicalIF":3.4,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9317656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gábor Szabó, Gernot Hudelist, István Madár, János Jr Rigó, Noémi Dobó, Attila Fintha, Laura Lipták, Emma Kalovics, Veronika Fancsovits, Attila Bokor
{"title":"Diagnostic accuracy of the IDEA protocol for non invasive diagnosis of rectosigmoid DE - a prospective cohort study.","authors":"Gábor Szabó, Gernot Hudelist, István Madár, János Jr Rigó, Noémi Dobó, Attila Fintha, Laura Lipták, Emma Kalovics, Veronika Fancsovits, Attila Bokor","doi":"10.1055/a-2034-2022","DOIUrl":"10.1055/a-2034-2022","url":null,"abstract":"<p><strong>Objectives: </strong> To test the accuracy of TVS applying the IDEA approach for suspected rectosigmoid DE and to determine the frequency of other pelvic diseases mimicking DE in patients undergoing surgery.</p><p><strong>Materials und methods: </strong> Prospective single center observational study including consecutive women undergoing TVS for clinically suspected rectosigmoid DE followed by conservative or surgical therapy. TVS findings were compared with those obtained by laparoscopy and confirmed histologically.</p><p><strong>Results: </strong> Of the 671 included patients, 128 women opted for medical therapy, and 6 patients decided for surgery but did not give consent to participate in the study. 537 women were enrolled in the final analysis. 279 (52 %) exhibited surgically confirmed rectosigmoid DE. The sensitivity and specificity, positive and negative predictive value (PPV, NPV), positive and negative likelihood ratio (LR+/-) and accuracy of TVS for diagnosing DE in the rectosigmoid were 93.5 %, 94.6 %, 94.9 %, 93.1 %, 17.24, 0.07, 94.04 %. 12 women who were clinically suspected for DE and mimicked sonographic signs fulfilling the IDEA criteria did exhibit other pathologies. Diagnoses were as follows: vaginal Gartner duct cyst (3/291;1.0 %), anorectal abscess (3/291; 1.0 %), rectal cancer (2/291;0.7 %), hydrosalpinx (2/291;0.7 %), metastatic endometrial cancer (1/291;0.35 %) and Crohn's disease (1/291;0.35 %).</p><p><strong>Conclusion: </strong> TVS for diagnosing colorectal DE applying the IDEA criteria is highly accurate for presurgical diagnosis. However, additional pelvic pathologies are encountered in 4-5 % of women attending for suspected rectosigmoid DE. These need to be taken into account when investigating patients for suspected DE.</p>","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":" ","pages":"61-68"},"PeriodicalIF":3.4,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9111426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Thank you very much!","authors":"","doi":"10.1055/a-2236-7100","DOIUrl":"10.1055/a-2236-7100","url":null,"abstract":"","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":"45 1","pages":"90-91"},"PeriodicalIF":3.4,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139673360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Stefan Lukac, Beate Hüner, Frank Reister, Davut Dayan, Krisztian Lato
{"title":"Letter to the Editor Regarding the Article: \"Antenatal Detection of True Knot in the Umbilical Cord - How Accurate Can We Be?\"","authors":"Stefan Lukac, Beate Hüner, Frank Reister, Davut Dayan, Krisztian Lato","doi":"10.1055/a-2072-0241","DOIUrl":"10.1055/a-2072-0241","url":null,"abstract":"","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":" ","pages":"87-88"},"PeriodicalIF":3.4,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9436844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ultrasound Diagnosis of Hepatocellular Carcinoma: Is the Future Defined by Artificial Intelligence?","authors":"Maximilian J Waldner, Deike Strobel","doi":"10.1055/a-2171-2674","DOIUrl":"10.1055/a-2171-2674","url":null,"abstract":"","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":"45 1","pages":"8-12"},"PeriodicalIF":3.4,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139673361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Christoph F Dietrich, Jean-Michel Correas, Xin-Wu Cui, Yi Dong, Roald Flesland Havre, Christian Jenssen, Ernst Michael Jung, Martin Krix, Adrian Lim, Nathalie Lassau, Fabio Piscaglia
{"title":"EFSUMB Technical Review - Update 2023: Dynamic Contrast-Enhanced Ultrasound (DCE-CEUS) for the Quantification of Tumor Perfusion.","authors":"Christoph F Dietrich, Jean-Michel Correas, Xin-Wu Cui, Yi Dong, Roald Flesland Havre, Christian Jenssen, Ernst Michael Jung, Martin Krix, Adrian Lim, Nathalie Lassau, Fabio Piscaglia","doi":"10.1055/a-2157-2587","DOIUrl":"10.1055/a-2157-2587","url":null,"abstract":"<p><p>Dynamic contrast-enhanced ultrasound (DCE-US) is a technique to quantify tissue perfusion based on phase-specific enhancement after the injection of microbubble contrast agents for diagnostic ultrasound. The guidelines of the European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) published in 2004 and updated in 2008, 2011, and 2020 focused on the use of contrast-enhanced ultrasound (CEUS), including essential technical requirements, training, investigational procedures and steps, guidance regarding image interpretation, established and recommended clinical indications, and safety considerations. However, the quantification of phase-specific enhancement patterns acquired with ultrasound contrast agents (UCAs) is not discussed here. The purpose of this EFSUMB Technical Review is to further establish a basis for the standardization of DCE-US focusing on treatment monitoring in oncology. It provides some recommendations and descriptions as to how to quantify dynamic ultrasound contrast enhancement, and technical explanations for the analysis of time-intensity curves (TICs). This update of the 2012 EFSUMB introduction to DCE-US includes clinical aspects for data collection, analysis, and interpretation that have emerged from recent studies. The current study not only aims to support future work in this research field but also to facilitate a transition to clinical routine use of DCE-US.</p>","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":" ","pages":"36-46"},"PeriodicalIF":3.4,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41140619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Florian Gerhardt, Valentin Blank, Gordian Prasse, Johannes Wiegand, Sebastian Rademacher, Maximilian von Laffert, Thomas Karlas
{"title":"Contrast-enhanced ultrasound characteristics for the diagnosis of biliary adenofibroma.","authors":"Florian Gerhardt, Valentin Blank, Gordian Prasse, Johannes Wiegand, Sebastian Rademacher, Maximilian von Laffert, Thomas Karlas","doi":"10.1055/a-2209-5837","DOIUrl":"10.1055/a-2209-5837","url":null,"abstract":"","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":" ","pages":"84-86"},"PeriodicalIF":3.4,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138812351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Roman Hari, Kaspar Kälin, Tanja Birrenbach, Kali Tal, Marie Roumet, Andreas Limacher, Sören Huwendiek, Andreas Serra, Robin Walter
{"title":"Near-peer compared to faculty teaching of abdominal ultrasound for medical students - A randomized-controlled trial.","authors":"Roman Hari, Kaspar Kälin, Tanja Birrenbach, Kali Tal, Marie Roumet, Andreas Limacher, Sören Huwendiek, Andreas Serra, Robin Walter","doi":"10.1055/a-2103-4787","DOIUrl":"10.1055/a-2103-4787","url":null,"abstract":"<p><strong>Purpose: </strong>Medical schools increasingly rely on near-peer tutors for ultrasound teaching. We set out to compare the efficacy of a blended near-peer ultrasound teaching program to that of a faculty course in a randomized controlled trial.</p><p><strong>Methods: </strong>152 medical students received 21 hours of ultrasound teaching either by near-peer teachers or medical doctors. The near-peer course consisted of blended learning that included spaced repetition. The faculty-led course was the European common course for abdominal sonography. The primary outcome measurement was the students' ultrasound knowledge at month 6, assessed by structured examination (score 0 to 50). Secondary outcomes included scores at month 0 and changes in scores after the course.</p><p><strong>Results: </strong>Students in the near-peer group scored 37 points, and students in the faculty group scored 31 points six months after course completion. The difference of 5.99 points (95% CI 4.48;7.49) in favor of the near-peer group was significant (p<0.001). Scores immediately after the course were 3.8 points higher in the near-peer group (2.35; 5.25, p<0.001). Ultrasound skills decreased significantly in the six months after course completion in the faculty group (-2.41 points, [-3.39; -1.42], p<0.001]) but barely decreased in the near-peer group (-0.22 points, [-1.19; 0.75, p=0.66]).</p><p><strong>Conclusion: </strong>The near-peer course that combined blended learning and spaced repetition outperformed standard faculty teaching in basic ultrasound education. This study encourages medical schools to use peer teaching combined with e-learning and spaced repetition as an effective means to meet the increasing demand for ultrasound training.</p>","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":" ","pages":"77-83"},"PeriodicalIF":3.4,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9557279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Salvatore Gitto, Domenico Albano, Francesca Serpi, Pierino Spadafora, Roberta Colombo, Carmelo Messina, Alberto Aliprandi, Luca Maria Sconfienza
{"title":"Diagnostic performance of high-resolution ultrasound in the evaluation of intrinsic and extrinsic wrist ligaments after trauma.","authors":"Salvatore Gitto, Domenico Albano, Francesca Serpi, Pierino Spadafora, Roberta Colombo, Carmelo Messina, Alberto Aliprandi, Luca Maria Sconfienza","doi":"10.1055/a-2066-9230","DOIUrl":"10.1055/a-2066-9230","url":null,"abstract":"<p><strong>Purpose: </strong>To investigate the role of ultrasound (US) in the evaluation of intrinsic and extrinsic ligaments of the wrist with magnetic resonance arthrography (MRA) as the reference standard.</p><p><strong>Materials and methods: </strong>This prospective study included patients referred for MRA after wrist trauma. US examination was performed just before MRA. On the dorsal and palmar sides of the wrist, the intrinsic interosseus and midcarpal, extrinsic, and collateral ligaments were evaluated. MRA was performed on a 1.5-T unit. In the first 20 patients included, ligament thickness was independently assessed using US and MRA and thickness reproducibility was calculated. Ligament integrity was evaluated in all patients.</p><p><strong>Results: </strong>38 patients (22 men, 16 women; mean age: 38 years) were included. Ligament thickness reproducibility ranged between 44% for the palmar ulnocapitate ligament and 71% for the palmar scaphotriquetral ligament. US had a sensitivity, specificity, positive and negative predictive values, and accuracy of 100% in the identification of tears of the palmar (n=8) and dorsal (n=3) bands of the scapholunate ligament and the ulnar collateral ligament (n=3). It had a sensitivity of 100%, specificity of 97%, positive predictive value of 50%, negative predictive value of 100%, and accuracy of 97% in the identification of tears of the palmar ulnolunate ligament (n=1).</p><p><strong>Conclusion: </strong>Compared to MRA, US showed good reproducibility in the assessment of wrist ligament thickness and similar accuracy with respect to identifying tears of the scapholunate, palmar ulnolunate, and ulnar collateral ligaments.</p>","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":" ","pages":"54-60"},"PeriodicalIF":3.4,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9580511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}