Journal of Medical Ultrasonics最新文献_第4页

Pulmonary arteriovenous fistula visualized during comprehensive ultrasound evaluation: striking microbubble findings. 在综合超声检查中发现肺动静脉瘘：明显的微泡表现。

IF 2.1 4区医学

Journal of Medical Ultrasonics Pub Date : 2026-07-01 Epub Date: 2025-12-09 DOI: 10.1007/s10396-025-01601-9

Rumi Hachiya, Yasuhide Mochizuki, Mamiko Yamada, Sakiko Gohbara, Yumi Yamamoto, Hiroto Fukuoka, Toshiro Shinke

引用次数: 0

Optimizing Impella support level with intracardiac echocardiography during ventricular fibrillation storm ablation under veno-arterial extracorporeal membrane oxygenation. 静脉-动脉体外膜氧合下室性颤动风暴消融过程中利用超声心动图优化Impella支持水平。

IF 2.1 4区医学

Journal of Medical Ultrasonics Pub Date : 2026-07-01 Epub Date: 2026-02-17 DOI: 10.1007/s10396-026-01618-8

Yuhei Kasai, Takayuki Kitai, Junji Morita, Ryo Horita, Ryo Otake, Jungo Kasai, Daisuke Hachinohe

引用次数: 0

Detection of fetal structural abnormalities at 20 and 30 weeks: a retrospective study of prenatal ultrasound screening. 20周和30周胎儿结构异常的检测：产前超声筛查的回顾性研究。

IF 2.1 4区医学

Journal of Medical Ultrasonics Pub Date : 2026-07-01 Epub Date: 2025-12-13 DOI: 10.1007/s10396-025-01609-1

Yuki Kamihara, Katsusuke Ozawa, Kohei Ogawa, Jin Muromoto, Rika Sugibayashi, Seiji Wada, Haruhiko Sago

{"title":"Detection of fetal structural abnormalities at 20 and 30 weeks: a retrospective study of prenatal ultrasound screening.","authors":"Yuki Kamihara, Katsusuke Ozawa, Kohei Ogawa, Jin Muromoto, Rika Sugibayashi, Seiji Wada, Haruhiko Sago","doi":"10.1007/s10396-025-01609-1","DOIUrl":"10.1007/s10396-025-01609-1","url":null,"abstract":"Purpose: To evaluate the role of ultrasound screening for fetal structural abnormalities at 20 and 30 weeks' gestation.Methods: This retrospective study included women with singleton pregnancies who underwent routine ultrasound screening at our hospital between May 2014 and April 2021. Participants received two ultrasound screening examinations: at 20 and 30 weeks' gestation. We evaluated the frequency and details of fetal structural abnormalities identified during each examination.Results: A total of 10,560 pregnant women underwent ultrasound screening at 20 and 30 weeks' gestation and delivered at our hospital. Structural abnormalities were observed in 142 (1.3%) women; of note, screening examinations at 20 and 30 weeks detected 42.3% and 23.9% of cases, respectively. Routine point-of-care ultrasound examinations performed between 20 and 30 weeks and beyond 30 weeks detected 8.5% and 6.3% of cases, respectively, with 19.0% of cases identified after birth. Cleft lip and palate and ventricular septal defects (VSDs) were the most common abnormalities detected at the 20-week ultrasound screening. At the 30-week ultrasound screening, in addition to hydronephrosis, VSD, and vascular rings, which were also detected at the 20-week ultrasound screening, diaphragmatic hernia, ovarian cysts, achondroplasia, duodenal atresia, and meconium peritonitis, which could be apparent later in pregnancy, were detected.Conclusions: The 20-week ultrasound screening revealed common fetal structural abnormalities, and the 30-week ultrasound screening detected fetal structural abnormalities that failed to be detected during the 20-week ultrasound screening and became apparent later in pregnancy. Adding a 30-week ultrasound screening provides enhanced diagnostic details in comparison to 20-week screening.","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"301-309"},"PeriodicalIF":2.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13407442/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145745375","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}

引用次数: 0

Relationship between medial meniscus extrusion and osteophyte formation in early-stage knee osteoarthritis: an ultrasound-based multicenter cross-sectional study. 早期膝关节骨关节炎中内侧半月板挤压与骨赘形成的关系：一项基于超声的多中心横断面研究。

IF 2.1 4区医学

Journal of Medical Ultrasonics Pub Date : 2026-07-01 Epub Date: 2025-12-09 DOI: 10.1007/s10396-025-01599-0

Kentaro Fujita, Yasushi Takata, Kenichi Goshima, Tomoyuki Kanayama, Naoki Takemoto, Manase Nishimura, Mikino Saito, Satoru Demura, Junsuke Nakase

{"title":"Relationship between medial meniscus extrusion and osteophyte formation in early-stage knee osteoarthritis: an ultrasound-based multicenter cross-sectional study.","authors":"Kentaro Fujita, Yasushi Takata, Kenichi Goshima, Tomoyuki Kanayama, Naoki Takemoto, Manase Nishimura, Mikino Saito, Satoru Demura, Junsuke Nakase","doi":"10.1007/s10396-025-01599-0","DOIUrl":"10.1007/s10396-025-01599-0","url":null,"abstract":"Purpose: Medial meniscus extrusion compromises the ability of meniscus to distribute a load across the knee joint and is recognized as a risk factor for knee osteoarthritis. Despite a positive correlation between medial meniscus extrusion and medial tibial osteophyte width, the sequence of these pathological changes remains unclear. In this multicenter cross-sectional study, we aimed to clarify the relationship between osteophyte formation and medial meniscus extrusion by comparing extrusion distances in knees with and without medial tibial osteophytes.Methods: We enrolled 207 Japanese patients with early-stage knee osteoarthritis, defined as Kellgren-Lawrence grade ≤ 2. Participants underwent radiography, magnetic resonance imaging, and ultrasonography (US). Knees were categorized into three groups based on the presence of osteophytes: N (no osteophytes), U (osteophytes detected only with US), and O (osteophytes detected with both radiography and US). The medial meniscus extrusion distance was assessed using US.Results: Among the 211 knees evaluated, 89 were classified into the N group, 93 into the U group, and 29 into the O group. The medial meniscus extrusion distance was significantly greater in the O group (3.3 ± 1.3 mm) than in both the N (2.3 ± 1.1 mm, p < 0.001) and U (2.6 ± 0.9 mm, p = 0.004) groups. No significant difference was detected between the N and U groups (p = 0.27).Conclusion: Medial meniscus extrusion was significantly associated with osteophyte formation in early-stage knee osteoarthritis.","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"339-345"},"PeriodicalIF":2.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145710000","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}

引用次数: 0

Measurement and analysis of the levator aponeurosis in unilateral aponeurotic ptosis using high-frequency (22 MHz) B-mode ultrasound with a water balloon. 利用高频（22 MHz） b超和水球测量和分析单侧腱膜上睑下垂的提肌腱膜。

IF 2.1 4区医学

Journal of Medical Ultrasonics Pub Date : 2026-07-01 Epub Date: 2026-01-06 DOI: 10.1007/s10396-025-01614-4

Haochen Guo, Guanshun Yu, Lian Cui, Xiaoyu Yu, Shumei Wen

{"title":"Measurement and analysis of the levator aponeurosis in unilateral aponeurotic ptosis using high-frequency (22 MHz) B-mode ultrasound with a water balloon.","authors":"Haochen Guo, Guanshun Yu, Lian Cui, Xiaoyu Yu, Shumei Wen","doi":"10.1007/s10396-025-01614-4","DOIUrl":"10.1007/s10396-025-01614-4","url":null,"abstract":"Purpose: To observe and measure the levator aponeurosis (LA) in patients with unilateral aponeurotic ptosis (AP) using high-frequency (22 MHz) B-mode ultrasound with a water balloon.Methods: Thirty-two unilateral APs were recruited. Palpebral fissure height (PFH), levator function (LF), and marginal reflex distance 1 (MRD1) of the affected eyes and the normal control eyes were measured. Sagittal ultrasound images of the central upper eyelid of both eyes were captured, and ultrasound indicators such as the thickness of the LA, the distance from the upper border of the tarsal plate to the septoaponeurosis junction (TJD), the thickness of the tarsal plate (TTP), the height of the tarsal plate (HTP), and the distance from the insertion point of the LA to the lower border of the tarsal plate (ITD) were measured in the ultrasound images.Results: The PFH, LF, MRD1, and thickness of the LA were all significantly lower in the affected eyes compared to the normal control eyes. The TJD value in the affected eyes was significantly greater than that in the normal control eyes. In contrast, the other three measurement parameters-namely, TTP, HTP, and ITD-showed no significant intergroup differences.Conclusions: High-frequency (22 MHz) B-mode ultrasound is a noninvasive and highly effective tool for visualizing and measuring the LA. In cases of unilateral AP, the LA exhibits reduced thickness compared to that of normal control eyes.","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"347-353"},"PeriodicalIF":2.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145913778","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}

引用次数: 0

Sinus of Valsalva-left atrial fistula after mitral annuloplasty. 二尖瓣环成形术后左瓣膜房瘘窦。

IF 2.1 4区医学

Journal of Medical Ultrasonics Pub Date : 2026-07-01 Epub Date: 2026-01-04 DOI: 10.1007/s10396-025-01607-3

Liu Zhang, Xiujuan Zhou, Xuejie Li

引用次数: 0

Explorative research on image quantification methods for setup conditions and quality control of ultrasound devices in thyroid ultrasonography. 甲状腺超声检查超声装置设置条件及质量控制图像量化方法的探索性研究。

IF 2.1 4区医学

Journal of Medical Ultrasonics Pub Date : 2026-07-01 Epub Date: 2026-02-19 DOI: 10.1007/s10396-025-01606-4

Chisato Takahashi, Yukio Kimura, Shoko Nishiyama, Yumiko Kurosu, Haruka Ejiri, Mahiro Asano, Satoshi Suzuki, Shinichi Suzuki, Hiroki Shimura

{"title":"Explorative research on image quantification methods for setup conditions and quality control of ultrasound devices in thyroid ultrasonography.","authors":"Chisato Takahashi, Yukio Kimura, Shoko Nishiyama, Yumiko Kurosu, Haruka Ejiri, Mahiro Asano, Satoshi Suzuki, Shinichi Suzuki, Hiroki Shimura","doi":"10.1007/s10396-025-01606-4","DOIUrl":"10.1007/s10396-025-01606-4","url":null,"abstract":"Purpose: The study explored the quantitative analysis of portable ultrasound devices using target images from Multipurpose Phantom N-365. It focused on identifying inter-device variability and time-dependent degradation of the devices and their probes to support standardization and quality control of ultrasound devices.Methods: Three ultrasound device models were assessed, with two different setup conditions for each model. Three types of phantom targets, i.e., cyst-like, colloid cyst-like, and nodule-like, were collected from circular grayscale targets. The mean and standard deviation (SD) of brightness were calculated for each target type.Results: Quantification of the mean and SD values of target brightness effectively distinguished between ultrasound devices due to the aging of the ultrasound equipment. Multivariate analysis further revealed that both the probes and the main unit independently contributed to time-related changes.Conclusion: This article presents a novel method for ensuring rigorous quality control and promoting standardization in ultrasound examinations by quantifying phantom image characteristics.","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"267-277"},"PeriodicalIF":2.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146228662","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}

引用次数: 0

Prenatal detection of a thrombus within a giant extra-abdominal umbilical vein varix. 产前检测巨大腹外脐静脉曲张内血栓。

IF 2.1 4区医学

Journal of Medical Ultrasonics Pub Date : 2026-07-01 Epub Date: 2026-01-17 DOI: 10.1007/s10396-025-01608-2

Takashi Shimokawa, Ayumi Okuyama, Ruiko Miura, Tatsuya Izdebski, Minako Goto, Kohei Seo, Kiyotake Ichizuka

引用次数: 0

Differentiation of focal liver lesions in contrast-enhanced ultrasound using a heuristic-guided hybrid machine-learning framework. 使用启发式引导混合机器学习框架鉴别对比增强超声局灶性肝脏病变。

IF 2.1 4区医学

Journal of Medical Ultrasonics Pub Date : 2026-07-01 Epub Date: 2026-01-29 DOI: 10.1007/s10396-025-01598-1

Keisuke Nakajima, Naohisa Kamiyama, Katsutoshi Sugimoto, Hiroshi Hashimoto, Takao Itoi

{"title":"Differentiation of focal liver lesions in contrast-enhanced ultrasound using a heuristic-guided hybrid machine-learning framework.","authors":"Keisuke Nakajima, Naohisa Kamiyama, Katsutoshi Sugimoto, Hiroshi Hashimoto, Takao Itoi","doi":"10.1007/s10396-025-01598-1","DOIUrl":"10.1007/s10396-025-01598-1","url":null,"abstract":"Purpose: Sonazoid contrast-enhanced ultrasound (CEUS) offers valuable diagnostic information on hepatic lesions, but it is time-consuming. In this study, we investigated a novel composite machine-learning framework that integrates heuristic knowledge and model-specific classification to differentiate liver lesions using only the first 2 min of CEUS imaging.Methods: CEUS images from 232 patients with 232 focal liver lesions (benign: 61, hepatocellular carcinoma [HCC]: 104, non-HCC malignancies [ML]: 67) were analyzed. For each case, six frames from injection to peak enhancement and static images at 1 and 2 min post-injection were used. Two deep learning models were developed: Model 1 classified heterogeneous enhancement patterns into \"benign,\" \"HCC,\" \"ML,\" or \"Uniform\" (homogeneous). Model 2 further classified \"Uniform\" cases into three diagnostic categories. Lesion brightness values were incorporated as input features. The artificial intelligence (AI) mode was also evaluated by observer study of three hepatologists using the area under the receiver operating characteristic curve (AUC).Results: The composite model was evaluated on 58 independent test cases, achieving classification accuracy of 81.8% for benign, 93.5% for HCC, and 68.8% for ML, with an overall accuracy of 84.5%. Binary classification (benign vs. malignant) yielded 97.9% sensitivity, 94.8% specificity, and 94.8% overall accuracy. For discrimination between benign and malignant, the mean AUC for the three observers was significantly improved with AI output, where the difference in AUC (95% confidence interval) was 0.095 (0.0197, 0.1703) (P = 0.013).Conclusions: The proposed AI-based framework enables accurate liver lesion classification using early phase CEUS, eliminating the need for Kupffer-phase imaging in many cases.","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"279-287"},"PeriodicalIF":2.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146087863","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}

引用次数: 0

Quantitative dynamic evaluation of the talus-lateral malleolus distance during forward single-leg drop landing in individuals with chronic ankle instability: a cross-sectional study. 慢性踝关节不稳定患者向前单腿落点时距骨-外踝距离的定量动态评估：一项横断面研究。

IF 2.1 4区医学

Journal of Medical Ultrasonics Pub Date : 2026-07-01 Epub Date: 2026-01-24 DOI: 10.1007/s10396-026-01617-9

Ayano Ishida, Satoshi Onoue, Yasunari Ikuta, Tsubasa Tashiro, Satoshi Arima, Makoto Komiya, Rami Mizuta, Honoka Ishihara, Toshiki Kobayashi, Fan Gao, Andreas Brand, Takashi Yamada, Noriaki Maeda

{"title":"Quantitative dynamic evaluation of the talus-lateral malleolus distance during forward single-leg drop landing in individuals with chronic ankle instability: a cross-sectional study.","authors":"Ayano Ishida, Satoshi Onoue, Yasunari Ikuta, Tsubasa Tashiro, Satoshi Arima, Makoto Komiya, Rami Mizuta, Honoka Ishihara, Toshiki Kobayashi, Fan Gao, Andreas Brand, Takashi Yamada, Noriaki Maeda","doi":"10.1007/s10396-026-01617-9","DOIUrl":"10.1007/s10396-026-01617-9","url":null,"abstract":"Purpose: To evaluate the dynamics of the talus-lateral malleolus distance during landing and compare the results between individuals with chronic ankle instability (CAI) and healthy adults.Methods: Participants were divided into the healthy (12 adults, 12 feet) and CAI (12 adults, 12 feet) groups. Participants performed forward single-leg drop landing from a 30-cm-high box. Through the synchronization of ultrasound with a motion capture system, measurements of the talus-lateral malleolus distance and ankle joint angles were obtained during forward single-leg drop landing. The analysis interval was from 200 ms before to 200 ms after initial contact; the time was normalized to 100%. Statistical parametric mapping was employed to investigate differences in the temporal changes of the talus-lateral malleolus distances and ankle joint angles during landing between groups.Results: A significantly longer talus-lateral malleolus distance was observed before initial contact in the CAI group (1-49%) as compared with the healthy group (p = 0.000). In addition, the ankle adduction angle before initial contact (12-61%) was larger in the CAI group than in the healthy group (p = 0.005).Conclusion: Our findings suggest that the talus-lateral malleolus distance increases along with the ankle adduction movement in individuals with CAI, especially before initial contact, potentially indicating high mechanical ankle instability. This study established an innovative measurement system for quantitative evaluation of the dynamics of the talus and lateral malleolus during landing. The findings of this study may contribute to a more detailed understanding of pathology and features of movement in patients with CAI.","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":" ","pages":"329-337"},"PeriodicalIF":2.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146040940","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}

引用次数: 0