Journal of Medical Ultrasonics最新文献

{"title":"Effect of shoulder internal rotation exercise with electromyographic and ultrasonographic biofeedback in patients with painful and restricted hand-behind-back motion: a randomized-controlled trial.","authors":"Kosei Goma, Masashi Kawabata, Kei Sugawa, Yuto Uchida, Yuto Watanabe, Yuto Sano, Shota Uchida, Hiroyuki Watanabe, Tomonori Kenmoku, Naonobu Takahira","doi":"10.1007/s10396-026-01656-2","DOIUrl":"https://doi.org/10.1007/s10396-026-01656-2","url":null,"abstract":"<p><strong>Purpose: </strong>To investigate the additional effects of combining electromyography (EMG) and ultrasonography (US) biofeedback with internal rotation exercise in patients with painful and restricted hand-behind-back (HBB) movement, commonly limited by subcoracoid impingement and posterior shoulder tightness.</p><p><strong>Methods: </strong>Forty-eight patients with shoulder periarthritis or subacromial pain syndrome or rotator cuff tear were randomly assigned to a control group (CG; internal rotation exercise only), an EMG biofeedback group (EMG-G), or a combined EMG and US biofeedback group (EMG + US-G). Exercises were performed daily for 4 weeks (10 repetitions × 3 sets) under weekly physical therapy supervision. The primary outcome measure was the C7-thumb distance. Secondary outcome measures included pain; Disability of the Arm, Shoulder, and Hand (DASH) score; internal rotation strength; and shoulder range of motion. Analyses were performed using an intention-to-treat approach with multiple imputation, applying mixed-effects models.</p><p><strong>Results: </strong>A significant group-by-time interaction was observed for the C7-thumb distance (p = 0.007), with the EMG + US-G showing greater improvement compared with the CG. Pain decreased over time, with a significant group-by-time interaction (p = 0.049); however, no significant between-group differences were detected in post hoc analyses. No significant interactions were found for DASH score, internal rotation strength, or passive range of motion (p > 0.05).</p><p><strong>Conclusion: </strong>The addition of EMG and US biofeedback to internal rotation exercise was associated with improvement in HBB mobility in patients with limited HBB movement. The effects on pain were modest and should be interpreted cautiously, although a potential benefit cannot be excluded.</p>","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148537535","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":"Ultrasound diagnosis of lumbar spondylolysis using facet-lamina landmarks.","authors":"Shuhei Iwata, Atsushi Kojima, Kenji Hatakeyama, Seiji Ohtori","doi":"10.1007/s10396-026-01658-0","DOIUrl":"https://doi.org/10.1007/s10396-026-01658-0","url":null,"abstract":"","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148425475","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":"Superior accuracy of a novel multidimensional index integrating static and dynamic liver stiffness for hepatocellular carcinoma risk prediction in chronic hepatitis B.","authors":"Yusuke Sano, Naoto Kawabe, Hiroko Sugiyama, Yutaka Sasaki, Keisuke Osakabe, Eizaburo Ohno, Teiji Kuzuya, Senju Hashimoto, Yoshiki Hirooka, Naohiro Ichino","doi":"10.1007/s10396-026-01666-0","DOIUrl":"https://doi.org/10.1007/s10396-026-01666-0","url":null,"abstract":"<p><strong>Purpose: </strong>Hepatitis B virus (HBV) infection is a major risk factor for hepatocellular carcinoma (HCC). Although nucleoside/nucleotide analogue (NA) therapy significantly reduces this risk, a subset of patients still develop HCC. This study aimed to identify high-risk groups by evaluating the comprehensive utility of multidimensional factor combinations.</p><p><strong>Methods: </strong>We analyzed 565 patients with chronic HBV infection who underwent liver stiffness (LS) measurement between 2009 and 2024. Independent risk factors for HCC were identified using multivariate logistic regression. In 84 patients who underwent testing before and after NA therapy, the annual rate of change in parameters was evaluated to assess dynamic risk prediction.</p><p><strong>Results: </strong>Multivariate analysis identified male sex, LS, total bilirubin, gamma-glutamyl transpeptidase, and fibrosis-4 index as independent predictors, with LS being the most significant (cut-off value: 1.54 m/s; area under the curve: 0.811). Diagnostic accuracy (69.4%) was increased to 79.1% by applying a platelet count (PLT) cut-off value of 18.1 × 10⁴/μL to the high-LS group, which was the next most-associated with LS. Rate of change in LS (%LS) was the most powerful predictor (p = 0.0015) in the longitudinal analysis. A %LS cut-off of - 13.1% yielded an area under the receiver operating characteristic curve of 0.914. Combining LS-PLT criteria with %LS resulted in a sensitivity of 90.9% and overall accuracy of 92.9% for identifying high-risk patients.</p><p><strong>Conclusion: </strong>Integrating cross-sectional LS and PLT measurements with the longitudinal rate of %LS significantly enhances HCC risk stratification. This approach facilitates personalized surveillance and optimized management for patients with chronic hepatitis B.</p>","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148413546","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":"Within-session repeatability and maturation-related differences in ultrasonographic assessment of the anterior tibiofibular gap in young athletes.","authors":"Sakura Oda, Shogo Tsutsumi, Yasunari Ikuta, Tsubasa Tashiro, Satoshi Arima, Honoka Ishihara, Takeru Abekura, Ryosuke Kaizuka, Nobuo Adachi, Noriaki Maeda, Takashi Yamada","doi":"10.1007/s10396-026-01662-4","DOIUrl":"https://doi.org/10.1007/s10396-026-01662-4","url":null,"abstract":"<p><strong>Purpose: </strong>Studies assessing the anterior tibiofibular gap (ATFG) using ultrasonography (US) under various weight-bearing conditions and ankle angles in young athletes are lacking. This study aimed to examine the within-session repeatability of US-measured ATFG under different weight-bearing conditions and ankle angles in young athletes.</p><p><strong>Methods: </strong>A total of 49 young athletes aged 9-17 years (32 males, 17 females; 98 ankles) participated in this study. ATFG was assessed at the level of the anterior inferior tibiofibular ligament using US in both sitting and standing postures. The ankle was positioned under three conditions: neutral (0°), 20° dorsiflexion, and 20° dorsiflexion with 30° external rotation. The within-session repeatability of the US-based ATFG measurements was assessed for each weight-bearing condition and ankle angle according to maturation stage. Additionally, ATFG was compared between maturation stages, and sex-related and side-to-side differences were analyzed.</p><p><strong>Results: </strong>The within-session repeatability was excellent for all measurement conditions, with intraclass correlation coefficient values exceeding 0.90 and standard error of measurement ranging from 0.05 to 0.21 mm. ATFG was greater in more mature athletes. No sex-related or side-to-side differences were observed in the ATFG or in the widening ratio.</p><p><strong>Conclusion: </strong>US-based assessment of the ATFG demonstrated excellent within-session repeatability under standardized measurement conditions in young athletes.</p>","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148406743","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":"Feasibility and preliminary validation of an autonomous robotic ultrasound system for thyroid nodule screening: a pilot prospective study.","authors":"Jiakang Zhou, Shaozhang Xie, Wei Wang, Qinghua Huang, Xiaofeng Dong","doi":"10.1007/s10396-026-01667-z","DOIUrl":"https://doi.org/10.1007/s10396-026-01667-z","url":null,"abstract":"<p><strong>Purpose: </strong>Thyroid nodules are highly prevalent in the general population, yet large-scale ultrasound screening is limited by its reliance on experienced sonographers. Autonomous robotic ultrasound systems have the potential to enable standardized thyroid screening with reduced operator dependency.</p><p><strong>Methods: </strong>In this pilot prospective study, a fully autonomous robotic ultrasound system was evaluated for thyroid nodule screening in a clinical setting. Twenty-one consecutive participants underwent both autonomous robotic ultrasound and standard operator-performed ultrasound examinations in a randomized order. The primary outcome was participant-level thyroid nodule detection rate compared with operator-performed ultrasound. Secondary outcomes included feasibility, thyroid gland coverage, and participant-reported comfort.</p><p><strong>Results: </strong>Autonomous robotic ultrasound was successfully completed without human intervention in 20 of 21 participants (95.2%). Thyroid nodules were identified on operator-performed ultrasound in nine participants, of whom eight were correctly detected by the autonomous system, corresponding to a participant-level detection rate of 88.9%. Complete coverage of the left lobe, right lobe, and isthmus was achieved in 100%, 95%, and 80% of participants, respectively. Participant-reported comfort was neutral to positive, with a median Likert score of 3 (interquartile range, 3-4).</p><p><strong>Conclusion: </strong>This pilot study demonstrated the feasibility of fully autonomous robotic ultrasound for standardized thyroid nodule screening. The system achieved high completion rates and acceptable screening performance in a controlled clinical setting, supporting further validation in larger and more diverse populations.</p>","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148388330","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":"Three-dimensional transthoracic echocardiography for the assessment of infantile cor triatriatum sinister.","authors":"Taro Kono, Jun Maeda, Hiroyuki Yamada, Sho Akiyama, Yukihiro Yoshimura","doi":"10.1007/s10396-026-01669-x","DOIUrl":"https://doi.org/10.1007/s10396-026-01669-x","url":null,"abstract":"","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148370629","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: Relationship between ultrasonographic findings and subscales of the Knee Injury and Osteoarthritis Outcome Score in patients with early knee osteoarthritis: a multicenter study.","authors":"Yushin Mizuno, Yasushi Takata, Yosuke Shima, Kenichi Goshima, Kazunari Kuroda, Tomoyuki Kanayama, Yoshihiro Ishida, Naoki Takemoto, Manase Nishimura, Takuya Sengoku, Satoru Demura, Junsuke Nakase","doi":"10.1007/s10396-026-01641-9","DOIUrl":"10.1007/s10396-026-01641-9","url":null,"abstract":"","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"373"},"PeriodicalIF":2.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13407749/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147787102","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}

{"title":"The breaking core: pseudoaneurysm arising from infected caseous calcification of the mitral annulus.","authors":"Mai Oboshi, Yasuhide Mochizuki, Hiroto Fukuoka, Masayuki Shibata","doi":"10.1007/s10396-025-01600-w","DOIUrl":"10.1007/s10396-025-01600-w","url":null,"abstract":"","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"363-364"},"PeriodicalIF":2.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145709985","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":"Acute effects of dynamic stretching on the mechanical properties of the triceps surae muscles assessed using shear wave ultrasound elastography.","authors":"Kensuke Oba, Michito Murayama, Sanae Kaga, Mina Samukawa","doi":"10.1007/s10396-025-01589-2","DOIUrl":"10.1007/s10396-025-01589-2","url":null,"abstract":"<p><strong>Purpose: </strong>Dynamic stretching (DS), characterized by repeated movements through the joint range of motion via antagonist muscle contraction, is thought to reduce muscle stiffness through mechanisms such as reciprocal inhibition. However, whether DS effectively decreases muscle stiffness remains unclear. This study aimed to investigate the acute effects of DS on triceps surae muscle stiffness using shear wave elastography.</p><p><strong>Methods: </strong>Sixteen healthy young adults performed both 120-s DS and control (no stretching) tasks. Shear wave velocities of the medial gastrocnemius (MG), lateral gastrocnemius (LG), and soleus (SOL) muscles were measured as indicators of muscle stiffness before and after DS.</p><p><strong>Results: </strong>Our findings indicated that DS significantly reduced the shear wave velocity in the MG. However, no significant changes were observed in the shear wave velocities of the LG and SOL.</p><p><strong>Conclusion: </strong>DS effectively decreased MG stiffness, with no observed effects in the LG or SOL. These findings highlight inter-muscular variability in response to DS and suggest that DS may be particularly beneficial for targeting stiffness in the MG of the triceps surae muscles.</p>","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"311-319"},"PeriodicalIF":2.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145253497","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":"Short- vs. long-axis ultrasound-guided injections for the proximal and distal parts of the posterior interosseous nerve: a cadaveric study.","authors":"Wei-Ting Wu, Chia-Ching Chen, Ke-Vin Chang, Shih-Wei Huang, Levent Özçakar","doi":"10.1007/s10396-025-01611-7","DOIUrl":"10.1007/s10396-025-01611-7","url":null,"abstract":"<p><strong>Purpose: </strong>Posterior interosseous nerve (PIN) syndrome is an uncommon neuropathy that may mimic lateral epicondylitis. High-resolution ultrasound aids its diagnosis by revealing nerve swelling, while ultrasound-guided injection is increasingly employed for decompression. Nevertheless, the influence of injection axis on injectate distribution remains unclear. This study aimed to compare the spread characteristics and accuracy of short-axis vs. long-axis ultrasound-guided injections at the proximal and distal PIN using cadaveric validation.Kindly check and confirm the city name is correctly identified in affiliation [6].It is correctly identified.  METHODS: Ten cadaveric limbs were randomized to short-axis (n = 5) or long-axis (n = 5) injections. Ultrasound parameters, including fascicle count, cross-sectional area, and surrounding muscle or tendon thickness, were recorded. Proximal and distal injections were performed separately with 5 mL of injectate. Subsequent dissection assessed target infiltration and spread dimensions (length, width).</p><p><strong>Results: </strong>Ultrasound findings were comparable between the groups with no significant differences in cross-sectional area or muscle/tendon thickness. On dissection, all injections achieved successful proximal and distal PIN infiltration. At the proximal level, short-axis injections produced significantly greater infiltration width (43.6 ± 6.2 mm vs. 24.3 ± 13.2 mm, p = 0.032), while infiltration length was not significantly different (88.8 ± 17.4 mm vs 77.1 ± 37.1 mm, p = 0.690). At the distal level, both infiltration length (81.0 ± 24.4 mm vs. 67.7 ± 37.4 mm, p = 0.548) and width (28.2 ± 10.9 mm vs. 22.5 ± 8.8 mm, p = 0.548) were numerically greater with short-axis injections, although the differences did not reach statistical significance.</p><p><strong>Conclusion: </strong>Both short- and long-axis ultrasound-guided injections consistently achieved target infiltration of the PIN. The short-axis approach provided broader proximal spread, which may enhance circumferential perineural coverage, whereas the distal injections showed no significant differences between techniques. These findings support the reliability of both approaches, while highlighting a potential advantage of short-axis guidance at the proximal forearm.</p>","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"321-328"},"PeriodicalIF":2.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145913767","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}