WFUMB Ultrasound Open最新文献

{"title":"Using virtual reality to assess competence in abdominal point–of–care ultrasound","authors":"Maja Emilie Verland ,&nbsp;Rune Overgaard Jensen ,&nbsp;Anders Bo Nielsen ,&nbsp;Stefan Posth ,&nbsp;Lars Konge ,&nbsp;Ole Graumann ,&nbsp;Pia Iben Pietersen","doi":"10.1016/j.wfumbo.2024.100047","DOIUrl":"10.1016/j.wfumbo.2024.100047","url":null,"abstract":"<div><h3>Objective</h3><p>This study aimed to develop a virtual reality test for abdominal point-of-care competence, to gather validity evidence for the test, and to establish a pass/fail score.</p></div><div><h3>Methods</h3><p>The developed test consisted of four abdominal point-of-care ultrasound cases. Medical students and doctors with varying abdominal point-of-care ultrasound experience were invited to the test and divided into three study groups: Novices, intermediates, and experienced abdominal point-of-care ultrasound operators. Data from the following items were used for item analysis and to examine internal consistency: The ability to correctly enter patient identification, orientate the ultrasound probe, and select a patient diagnosis (hydronephrosis, cholecystitis, gallbladder stones, abdominal aortic aneurysm, and/or urine retention). The contrasting groups’ standard setting method was used to establish a pass/fail score.</p></div><div><h3>Results</h3><p>Thirty-one participants were included in the test. The item analysis included 49 items and a credible pass/fail score of 31 points was established (minimum of 0 points, maximum of 49 points). A one-way ANOVA was used to compare the mean test scores between the groups and showed significant difference between all three groups (p &lt; 0.001). Internal consistency was high (Cronbach's alpha of 0.91), and an independent <em>t</em>-test showed statistically significant difference between the total scores of novices (mean = 23.7 points; SD = 8.7) and experienced operators (mean = 39.1 points; SD = 7.9), p &lt; 0.001.</p></div><div><h3>Conclusion</h3><p>We developed a test for abdominal point-of-care ultrasound competence assessment in virtual reality. Solid validity evidence was gathered, a credible pass/fail score was established, and the test could distinguish between novices and experienced abdominal point-of-care ultrasound operators.</p></div>","PeriodicalId":101281,"journal":{"name":"WFUMB Ultrasound Open","volume":"2 2","pages":"Article 100047"},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949668324000156/pdfft?md5=79ab798f5f339f20e9241e7236b80298&pid=1-s2.0-S2949668324000156-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141056434","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":"Reply to inferring stroke volume at the common carotid artery: The importance of flow distribution","authors":"Joris van Houte","doi":"10.1016/j.wfumbo.2024.100046","DOIUrl":"10.1016/j.wfumbo.2024.100046","url":null,"abstract":"","PeriodicalId":101281,"journal":{"name":"WFUMB Ultrasound Open","volume":"2 1","pages":"Article 100046"},"PeriodicalIF":0.0,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949668324000144/pdfft?md5=5a8de13086bf28740e1c9861af3a1e06&pid=1-s2.0-S2949668324000144-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140763544","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":"Multiparametric quantification and visualization of liver fat using ultrasound","authors":"Jihye Baek ,&nbsp;Ahmed El Kaffas ,&nbsp;Aya Kamaya ,&nbsp;Kenneth Hoyt ,&nbsp;Kevin J. Parker","doi":"10.1016/j.wfumbo.2024.100045","DOIUrl":"10.1016/j.wfumbo.2024.100045","url":null,"abstract":"<div><h3>Objectives</h3><p>Several ultrasound measures have shown promise for assessment of steatosis compared to traditional B-scan, however clinicians may be required to integrate information across the parameters. Here, we propose an integrated multiparametric approach, enabling simple clinical assessment of key information from combined ultrasound parameters.</p></div><div><h3>Methods</h3><p>We have measured 13 parameters related to ultrasound and shear wave elastography. These were measured in 30 human subjects under a study of liver fat. The 13 individual measures are assessed for their predictive value using independent magnetic resonance imaging-derived proton density fat fraction (MRI-PDFF) measurements as a reference standard. In addition, a comprehensive and fine-grain analysis is made of all possible combinations of sub-sets of these parameters to determine if any subset can be efficiently combined to predict fat fraction.</p></div><div><h3>Results</h3><p>We found that as few as four key parameters related to ultrasound propagation are sufficient to generate a linear multiparametric parameter with a correlation against MRI-PDFF values of greater than 0.93. This optimal combination was found to have a classification area under the curve (AUC) approaching 1.0 when applying a threshold for separating steatosis grade zero from higher classes. Furthermore, a strategy is developed for applying local estimates of fat content as a color overlay to produce a visual impression of the extent and distribution of fat within the liver.</p></div><div><h3>Conclusion</h3><p>In principle, this approach can be applied to most clinical ultrasound systems to provide the clinician and patient with a rapid and inexpensive estimate of liver fat content.</p></div>","PeriodicalId":101281,"journal":{"name":"WFUMB Ultrasound Open","volume":"2 1","pages":"Article 100045"},"PeriodicalIF":0.0,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949668324000132/pdfft?md5=4195f5791c52a264bc45b6e1cf1edb83&pid=1-s2.0-S2949668324000132-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140796533","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":"The relationships among knee and patella alignments, body mass index, quadriceps, and knee adduction moments in healthy young females","authors":"Koun Yamauchi ,&nbsp;Remi Fujita ,&nbsp;Manato Kameyama ,&nbsp;Chisato Kato ,&nbsp;Takayuki Kato ,&nbsp;Susumu Ota","doi":"10.1016/j.wfumbo.2024.100044","DOIUrl":"10.1016/j.wfumbo.2024.100044","url":null,"abstract":"<div><h3>Objective</h3><p>To determine the relationships among knee and patella alignments, BMI, quadriceps, and knee adduction moments, which are associated with knee osteoarthritis, in healthy people.</p></div><div><h3>Methods</h3><p>In 60 young females, intercondylar distances normalized by body height, Q-angle, and BMI were assessed. The ratios of individual muscle:quadriceps thicknesses measured using ultrasonography were calculated. Correlations between these parameters were evaluated. Ten subjects were selected from the VALGUS, mild VARUS, or severe VARUS knee groups (&lt;1.5 %, 1.5 %≤normalized intercondylar distance&lt;2.0 %, and 2.0 %≤, respectively). The external knee adduction moments measured by three-dimensional gait analysis were compared among the 3 groups, and the correlations with BMI, the Q-angle, and the individual quadriceps thickness ratios were evaluated for each of the 3 groups.</p></div><div><h3>Results</h3><p>The normalized intercondylar distance and Q-angle increased as the vastus medialis:quadriceps thickness ratio increased (r = 0.29 and r = 0.28, respectively), while BMI increased as the vastus medialis:quadriceps thickness ratio decreased (rs = −0.59) and the rectus femoris:quadriceps thickness ratio increased (rs = 0.34). The knee adduction moment in the severe VARUS was greatest (effect size = 2.1 versus the VALGUS; effect size = 1.7 versus the mild VARUS); however, the knee adduction moment increased as the vastus medialis:quadriceps thickness ratio decreased (r = −0.68) and the rectus femoris:quadriceps thickness ratio increased (r = 0.66) in the mild VARUS, whereas the knee adduction moment increased as the Q-angle decreased in the severe VARUS (rs = −0.83).</p></div><div><h3>Conclusion</h3><p>The vastus medialis:quadriceps thickness ratio was related to knee and patellar alignment and BMI. The mechanism by which the knee adduction moment is reduced differs according to the degree of knee alignment.</p></div>","PeriodicalId":101281,"journal":{"name":"WFUMB Ultrasound Open","volume":"2 1","pages":"Article 100044"},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949668324000120/pdfft?md5=94da8cb96c9c990cb9a5cdb92faf0574&pid=1-s2.0-S2949668324000120-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140763341","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":"A new method of the dynamic assessment of the supraspinatus using ultrasonography","authors":"Junsuke Miyasaka ,&nbsp;Ryuzo Arai ,&nbsp;Yuji Yoshioka ,&nbsp;Takuma Yuri ,&nbsp;Naoki Umatani ,&nbsp;Kohei Nishitani ,&nbsp;Shinichiro Nakamura ,&nbsp;Shinichi Kuriyama ,&nbsp;Ryosuke Ikeguchi ,&nbsp;Shuichi Matsuda","doi":"10.1016/j.wfumbo.2024.100042","DOIUrl":"https://doi.org/10.1016/j.wfumbo.2024.100042","url":null,"abstract":"<div><h3>Objective</h3><p>We devised a new dynamic assessment of the supraspinatus (DAS) using ultrasonography. The objectives of this study are as follows: 1. to verify the moving distance of the supraspinatus using ultrasonography in the cadaveric shoulders; 2. to evaluate the reliability of DAS in patients with rotator cuff tear (RCT) and investigate the correlation between DAS and magnetic resonance imaging (MRI) assessments.</p></div><div><h3>Methods</h3><p>In Part 1, the supraspinatus in both shoulders of one cadaveric specimen was pulled laterally by 5 mm and 10 mm. In the ultrasonographic movie of the supraspinatus, the moving distances of a placed marker and a representative speckle which was visually identified as a high-intensity dot with the longest track were measured. In Part 2, among 62 RCT shoulders we verified the interrater agreement of DAS and correlation between DAS and MRI findings of RCT size and muscle atrophy.</p></div><div><h3>Results</h3><p>In Part 1, during the supraspinatus traction, the moving distances of the marker and speckle were almost same; 1.07–2.68 mm and 1.60–2.67 mm, respectively (the pulled distance was 5 mm), 3.95–5.35 mm and 3.59–5.60 mm (the pulled distance was 10 mm). In Part 2, DAS showed a high interrater agreement of 0.74 in the kappa coefficients. DAS showed no correlations with tear size and atrophy, respectively (Spearman's rank correlation coefficient (ρ): 0.14 (p = 0.35) and 0.13 (p = 0.29)).</p></div><div><h3>Conclusion</h3><p>DAS can reliably demonstrate dynamic aspects of the supraspinatus in RCT patients, which have been lacked in static imaging assessments as MRI.</p></div>","PeriodicalId":101281,"journal":{"name":"WFUMB Ultrasound Open","volume":"2 1","pages":"Article 100042"},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949668324000107/pdfft?md5=2b18f06a5880059d3fbe57ce283dae2b&pid=1-s2.0-S2949668324000107-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140351049","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":"Comparing pulmonary ultrasound findings when viewing lung pleura beneath costal cartilage compared to costal bones","authors":"Patrick Kishi ,&nbsp;Michael Cirone ,&nbsp;Nicole Glowacki ,&nbsp;Michael J. Lambert ,&nbsp;Katharine M. Burns","doi":"10.1016/j.wfumbo.2024.100041","DOIUrl":"https://doi.org/10.1016/j.wfumbo.2024.100041","url":null,"abstract":"<div><h3>Objective</h3><p>Ultrasound is one modality to quickly diagnose pneumothoraces in critically ill patients. The bones of the chest wall often produce shadowing that can make it difficult to visualize the lung pleura. We aim to compare the ease of identifying lung sliding when viewing the pleura beneath rib cartilage located closer to the sternum versus rib bone more laterally.</p></div><div><h3>Methods</h3><p>On five healthy models, bilateral lung ultrasounds were performed adjacent to the sternum over rib cartilage and laterally over rib bone. The linear transducer was placed in 3 locations at each rib level. Forty-five participants were enrolled into this study to report their level of confidence in identifying lung sliding using a five-point Likert scale. The Wilcoxon signed rank test was used for statistical calculations.</p></div><div><h3>Results</h3><p>The composite scores of lung sliding clarity were greater for images performed medially over costal cartilage compared to laterally over bone (3.5 vs 3.3, p = 0.02). When stratified by the location of cartilage or bone within the ultrasound image, lung sliding demonstrated greater clarity when the image was centered directly over cartilage versus bone (3.0 vs. 2.4, p &lt; 0.01) and partially over cartilage versus bone, (3.4 vs 3.1, p &lt; 0.01). No statistical difference was found when viewing images of lung sliding between cartilage versus bone (3.7 vs 3.7. p = 0.26).</p></div><div><h3>Conclusion</h3><p>Assessing lung sliding demonstrated greater clarity when performed medially over the rib cartilage versus laterally over rib bone when ribs were within the field of view. Clinicians should consider performing ultrasounds over rib cartilage when evaluating lung sliding pathology.</p></div>","PeriodicalId":101281,"journal":{"name":"WFUMB Ultrasound Open","volume":"2 1","pages":"Article 100041"},"PeriodicalIF":0.0,"publicationDate":"2024-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949668324000090/pdfft?md5=551986014d8262f54c024645d160cc81&pid=1-s2.0-S2949668324000090-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140347608","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":"Multiphysics analysis of a high-intensity ultrasound system applied to a three-layer animal tissue","authors":"Daniel Aguilar-Torres ,&nbsp;Omar Jiménez-Ramírez ,&nbsp;José Luis Camacho-Martínez ,&nbsp;Rubén Vázquez-Medina","doi":"10.1016/j.wfumbo.2024.100039","DOIUrl":"10.1016/j.wfumbo.2024.100039","url":null,"abstract":"<div><p>High-intensity ultrasound systems for medical therapy must be carefully designed, implemented, and applied to avoid tissue damage or injury considering stimulation and relaxation time, frequency, and intensity of ultrasound. Based on these concerns and considering a test three-layer animal tissue consisting of skin, muscle, and bone, we determined the frequency and intensity at which ultrasound effectively stimulates the test animal tissues. In addition, from these ultrasound frequencies and intensities, and taking care the critical temperature recommended to preserve the integrity of the human tissue and avoid any tissue injury, we determine the stimulation and relaxation times. For this purpose, we performed a multiphysics simulation that describes the spatial and temporal dynamics of the thermoacoustic effect of ultrasound applied to test animal tissues. To practically demonstrate this ultrasound behavior, we perform an experimental setup based on an electronic HITU device designed and implemented to freely adjust the ultrasound intensity and frequency, as well as the stimulation time of the test animal tissues. Finally, we conclude that, depending on the test tissue, an ultrasound therapy system should allow the selection of the intensity and frequency of applied ultrasound, as well as the stimulation time to avoid tissue injury, which can be considered by health ministries around the world.</p></div>","PeriodicalId":101281,"journal":{"name":"WFUMB Ultrasound Open","volume":"2 1","pages":"Article 100039"},"PeriodicalIF":0.0,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949668324000077/pdfft?md5=ffd42f46ee759bab7d71996d3fe558b3&pid=1-s2.0-S2949668324000077-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140271643","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":"Comparing conventional abdominal ultrasound scanning versus a ROBotic assisted UltraSonography sysTem (ROBUST)","authors":"Nurul Adliah Gazali ,&nbsp;Rafidah Abu Bakar ,&nbsp;Celia Ia Choo Tan ,&nbsp;Jiang Bo ,&nbsp;Sally Hsueh Er Lee ,&nbsp;Hui Ping Ho ,&nbsp;Sze Ying Lim ,&nbsp;Wei Kiong Cheong ,&nbsp;Suet Ching Jennifer Liaw ,&nbsp;Chin Chin Ooi","doi":"10.1016/j.wfumbo.2024.100040","DOIUrl":"10.1016/j.wfumbo.2024.100040","url":null,"abstract":"<div><h3>Background</h3><p>Work-related musculoskeletal disorders (WRMSD) among sonographers is a major problem with a high prevalence rate of more than 80% in North America and United Kingdom. In Singapore, this is particularly relevant because statistics have showed WRMSD accounted for 60% of all confirmed occupational diseases cases. The ROBotic UltraSonography sysTem (ROBUST) was developed to overcome the WRMSD challenges sonographers faced in their daily clinical practice and, more importantly, increase their career longevity and productivity.</p></div><div><h3>Objectives</h3><p>To evaluate the effectiveness of ROBUST in producing diagnostic images equivalent to conventional ultrasound (US) scans and to assess its clinical feasibility and receptiveness.</p></div><div><h3>Methods</h3><p>A total of 50 adult patients from two tertiary hospitals underwent conventional abdominal US followed by ROBUST scans. Six sonographers performed the US scans using the standard protocol. Four expert readers, blinded to the scanning methods, graded the image quality of 2,218 images (1,317 conventional, 901 ROBUST). Surveys were distributed immediately after the scan to assess the patient’s and sonographers’ opinions on maneuverability, pain, and comfort.</p></div><div><h3>Results</h3><p>Wilcoxon signed rank test showed no significant difference between conventional US and ROBUST for image quality (<em>p</em> = 0.317). Sixteen (16/50 = 32%) patients responded feeling slight to moderate pain when scanned by ROBUST (<em>p</em> = 0.251). All the sonographers felt that the imaging task using ROBUST was not physically strenuous. One sonographer felt that the ROBUST was easy to manipulate; two were neutral (<em>p</em> = 0.007), and three experienced difficulties manipulating the ROBUST.</p></div><div><h3>Conclusion</h3><p>ROBUST can produce diagnostic images equivalent to conventional scans. It is feasible in clinical settings with good acceptance by sonographers and patients. Adoption of this innovation in clinical practice could potentially increase career longevity and productivity by alleviating pain and discomfort experienced by sonographers.</p></div>","PeriodicalId":101281,"journal":{"name":"WFUMB Ultrasound Open","volume":"2 1","pages":"Article 100040"},"PeriodicalIF":0.0,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949668324000089/pdfft?md5=bab49dd49d0a6248007158278e30adf4&pid=1-s2.0-S2949668324000089-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140282627","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":"Inferring stroke volume at the common carotid artery: The importance of flow distribution","authors":"Jon-Emile S. Kenny","doi":"10.1016/j.wfumbo.2024.100038","DOIUrl":"https://doi.org/10.1016/j.wfumbo.2024.100038","url":null,"abstract":"","PeriodicalId":101281,"journal":{"name":"WFUMB Ultrasound Open","volume":"2 1","pages":"Article 100038"},"PeriodicalIF":0.0,"publicationDate":"2024-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949668324000065/pdfft?md5=5133462c7d18277de232927e57d024b9&pid=1-s2.0-S2949668324000065-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140191267","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":"Comparative analysis of the diagnostic efficiency of the four thyroid imaging reporting and data systems","authors":"Jun Xu ,&nbsp;Wei-Bing Zhang ,&nbsp;Wen-Fang Deng ,&nbsp;Bei-Li He ,&nbsp;Ting-Yue Qi","doi":"10.1016/j.wfumbo.2024.100037","DOIUrl":"10.1016/j.wfumbo.2024.100037","url":null,"abstract":"<div><p>The purpose of this study was to comparative analyze the diagnostic efficiency of Thyroid Imaging Reporting and Data System proposed by Kwak, American College of Radiology, the European Thyroid Association and the Chinese Medical Association, respectively (Kwak TI-RADS, ACR TI-RADS, EU-TIRADS and C-TIRADS, respectively) for malignant risk stratification of thyroid nodules. A total of 1142 thyroid nodules confirmed by cytological or surgical pathologies were retrospectively classified according to Kwak TI-RADS, ACR TI-RADS, EU-TIRADS and C-TIRADS. The area under the receiver operating characteristic curve (AUC), the diagnostic sensitivity, specificity, Youden index, and accuracy of each TI-RADS for nodules was calculated and compared. The diagnostic sensitivity of ACR TI-RADS was 85.5%, which was lowest (all <em>P</em> &lt; 0.05). The diagnostic specificity of ACR TI-RADS was higher than that of Kwak TI-RADS and EU-TIRADS (all <em>P</em> &lt; 0.05), but there was no significant difference compared with that of C-TIRADS (x² = 2.335, <em>P</em> = 0.126). The diagnostic accuracies of the four methods were more than 85%, and there were no significant differences (all <em>P</em> &gt; 0.05). The AUC of C-TIRADS was highest among the four methods (all <em>P</em> &lt; 0.05). The four methods have high diagnostic efficiency in malignant risk stratification of thyroid nodules, and the AUC of C-TIRADS was higher than that of the other three methods.</p></div>","PeriodicalId":101281,"journal":{"name":"WFUMB Ultrasound Open","volume":"2 2","pages":"Article 100037"},"PeriodicalIF":0.0,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949668324000053/pdfft?md5=9bbd70ad9b7fdea4f272faf25642d6ab&pid=1-s2.0-S2949668324000053-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140272057","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}