{"title":"Comparing reference points in strain elastography for predicting autoimmune thyroiditis.","authors":"Yi-Chen Ho, Chi-Yu Kuo, Ming-Nan Chien, Shih-Ping Cheng","doi":"10.1007/s10396-025-01593-6","DOIUrl":"10.1007/s10396-025-01593-6","url":null,"abstract":"<p><strong>Purpose: </strong>Chronic autoimmune thyroiditis shows increased stiffness on elastography. The sternocleidomastoid (SCM) or strap muscles have been used as references in strain elastography in prior studies. We aimed to compare the effects of different reference points in strain elastography on its diagnostic performance.</p><p><strong>Methods: </strong>Patients referred for thyroidectomy underwent strain elastography assessment of the non-tumor-bearing thyroid parenchyma. The strain ratio was determined using either the adjacent SCM muscle or the trachea at the same depth as reference points. Final pathological results served as the standard.</p><p><strong>Results: </strong>A total of 174 patients were analyzed, with 39 (22%) diagnosed with autoimmune thyroiditis. Multivariate logistic regression identified thyroid peroxidase antibodies, thyroglobulin antibodies, and the strain ratio using the trachea as a reference as independent predictors of thyroiditis. The area under the receiver operating characteristic curve was significantly higher with the trachea as the reference compared to the SCM (0.854 vs. 0.611). Sensitivity analyses indicated that diagnostic performance was not affected by patient age or body habitus.</p><p><strong>Conclusions: </strong>Different reference points in strain elastography significantly influence the predictability of autoimmune thyroiditis, and using the trachea as a reference improves diagnostic performance.</p>","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"139-146"},"PeriodicalIF":2.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145497398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimizing forceps delivery safety: predicting anal sphincter injury with intrapartum ultrasound.","authors":"Shin Hashiramoto, Hiroko Takita, Tatsuya Arakaki, Yuka Yamashita, Mayumi Kaneko, Ryu Matsuoka, Akihiko Sekizawa","doi":"10.1007/s10396-025-01587-4","DOIUrl":"10.1007/s10396-025-01587-4","url":null,"abstract":"<p><strong>Purpose: </strong>To assess whether intrapartum ultrasound parameters can predict obstetric anal sphincter injury (OASI) in forceps deliveries.</p><p><strong>Methods: </strong>This retrospective cohort study included women undergoing forceps delivery for live, singleton, term cephalic pregnancies at Showa Medical University Hospital, between April 2021 and September 2024. Ultrasound was performed immediately before forceps application to evaluate angle of progression (AoP), head direction (HD), transperineal ultrasound (TUS) station, and midline angle (MLA) at rest and during pushing. Delta (Δ) values were calculated as differences between pushing and resting. OASI was diagnosed clinically and via transanal ultrasound. Parameters were compared between women with and without OASI. The Benjamini-Hochberg procedure corrected for multiple testing, with significance below < 0.05.</p><p><strong>Results: </strong>Among 256 women, 23 (8.9%) developed OASI. Maternal, labor, and neonatal characteristics were similar between groups. Several intrapartum ultrasound parameters were significantly associated with OASI: TUS station during pushing (median 3.2 and 4.2, p = 0.002, q = 0.012), ΔTUS station (1.1 and 1.6, p = 0.006, q = 0.042), HD at rest (28° and 38°, p < 0.0001 q < 0.001), HD during pushing (32° and 50°, p < 0.0001, q < 0.001), and ΔHD (3.2° and 10°, p = 0.0005, q = 0.004). HD during pushing showed the best predictive performance (AUC = 0.871), with an optimal cutoff of 36° (sensitivity 0.69, specificity 0.90).</p><p><strong>Conclusion: </strong>Intrapartum ultrasound, particularly HD during pushing, is a valuable predictor of OASI in forceps deliveries. A cut-off value of 36° may identify women at higher risk and improve forceps delivery safety.</p>","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"189-197"},"PeriodicalIF":2.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145394803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Prenatal diagnosis and outcome of meso/dextrocardia: a single-center report of 29 cases.","authors":"Yuya Tanaka, Yoshifumi Kasuga, Keisuke Akita, Yuka Fukuma, Junko Tamai, Keita Hasegawa, Satoru Ikenoue, Daigo Ochiai, Mamoru Tanaka","doi":"10.1007/s10396-025-01583-8","DOIUrl":"10.1007/s10396-025-01583-8","url":null,"abstract":"<p><strong>Purpose: </strong>While meso/dextrocardia, a cardiac axis abnormality, is associated with various complications and a poor prognosis, few studies have been reported. We aimed to identify and review patients at our hospital who had been diagnosed with fetal meso/dextrocardia.</p><p><strong>Methods: </strong>The medical records of 29 patients diagnosed with fetal meso/dextrocardia between April 1, 2014 and March 31, 2024 were reviewed.</p><p><strong>Results: </strong>We identified eight cases of mesocardia and 21 cases of dextrocardia (17 dextropositions and four dextroversions). Right lung hypoplasia (including 3q trisomy, esophageal bronchopleural fistula, and left pulmonary artery sling) was identified in three cases. Five cases of persistent left superior vena cava (PLSVC) were identified [isolated PLSVC (n = 2), VACTERL association (n = 1), trisomy 13 (n = 2)]. Dextroposition was linked to congenital pulmonary airway malformation (eight cases), left pulmonary sequestration (one case), congenital diaphragmatic hernia (six cases), right lung hypoplasia (one case), and VACTERL association with right lung aplasia and esophageal atresia (one case). Dextroversion was associated with asplenia syndrome (two cases), single-ventricle (one case), and Temple syndrome with PLSVC and bilateral hypoplastic pulmonary arteries (one case). Among 29 newborns, six (20.7%) died during the early neonatal period and seven (24.1%) required postnatal multidisciplinary treatment, highlighting a poor prognosis in many cases.</p><p><strong>Conclusion: </strong>While some patients, such as those with isolated PLSVC, had favorable outcomes, several cases involved severe complications requiring intensive perinatal management. When fetal meso/dextrocardia is detected, it is critical to evaluate fetal anomalies comprehensively and not limit assessment to the heart and lungs.</p>","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"179-188"},"PeriodicalIF":2.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145368812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"\"Blowfish sign\" of fresh and chronic mixed-vein thrombosis in the chronic phase after the 2024 Noto Peninsula earthquake.","authors":"Hiromasa Tsubouchi, Eiju Hatano, Naomi Satou, Hisateru Nishizawa, Yuzo Shimode, Takashi Kobata, Kazuhiko Hanzawa","doi":"10.1007/s10396-026-01621-z","DOIUrl":"10.1007/s10396-026-01621-z","url":null,"abstract":"","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"247-249"},"PeriodicalIF":2.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146214230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A review of my history of research on ultrasound tissue characterization of chronic liver disease for developing ultrasound clinical technology.","authors":"Naohisa Kamiyama","doi":"10.1007/s10396-025-01595-4","DOIUrl":"10.1007/s10396-025-01595-4","url":null,"abstract":"<p><p>Ultrasound echo signals from organs contain various physical information and numerous studies have been conducted to extract new diagnostic insights from these signals. This article reviews the research and development I have undertaken in diagnosing liver tissue characteristics, reflecting on its historical progression. Initially, texture analysis aimed to identify features of liver fibrosis, but it was found to be more effective for quantifying fatty liver. Consequently, the analysis algorithm and product specifications were refined to address this need. For fatty liver, the importance of early detection of non-alcoholic steatohepatitis (NASH) has grown, leading to investigations into quantifying the liver's attenuation coefficient. After several prototype trials, a real-time quantitative measurement function was achieved.</p>","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"129-138"},"PeriodicalIF":2.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145913745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Anomalous left coronary artery from the noncoronary sinus, diagnosed using transesophageal echocardiography.","authors":"Hiroyuki Takao, Koichi Toda, Akinori Hirano, Hirotaka Ishido, Takaya Hoashi, Satoshi Masutani, Takuro Kojima","doi":"10.1007/s10396-025-01591-8","DOIUrl":"10.1007/s10396-025-01591-8","url":null,"abstract":"","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"235-236"},"PeriodicalIF":2.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145490802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Real-time visualization of human colonic vascular architecture using 33-MHz high-frequency ultrasound and superb microvascular imaging.","authors":"Satoko Arai, Gaku Ohira, Atsushi Hirata, Tetsuro Maruyama","doi":"10.1007/s10396-025-01603-7","DOIUrl":"10.1007/s10396-025-01603-7","url":null,"abstract":"","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"239-241"},"PeriodicalIF":2.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145776326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Anatomical variation of cervical nerve roots not passing through the scalene muscle plane.","authors":"Toru Omodani","doi":"10.1007/s10396-025-01590-9","DOIUrl":"10.1007/s10396-025-01590-9","url":null,"abstract":"","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"245-246"},"PeriodicalIF":2.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145309801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction: Application of four-section approach for prenatal diagnosis of Pierre robin sequence.","authors":"Xiuling Li, Lingyan Liu, Fang Yan, Xiang Yang, Guanghui Xiu, Xudong Dong","doi":"10.1007/s10396-025-01586-5","DOIUrl":"10.1007/s10396-025-01586-5","url":null,"abstract":"","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"255"},"PeriodicalIF":2.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13092522/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145193754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}