Journal of Medical Ultrasonics最新文献_第5页

Ultrasonographic diagnosis of cervical lymph nodes. 宫颈淋巴结的超声诊断。

IF 1.9 4区医学

Journal of Medical Ultrasonics Pub Date : 2024-06-28 DOI: 10.1007/s10396-024-01466-4

Daisuke Saito, Kiyoto Shiga

引用次数: 0

High-intensity focused ultrasound treatment for hepatocellular carcinoma. 高强度聚焦超声治疗肝细胞癌。

IF 1.9 4区医学

Journal of Medical Ultrasonics Pub Date : 2024-06-28 DOI: 10.1007/s10396-024-01469-1

Atsushi Sofuni, Hirohito Takeuchi, Katsutoshi Sugimoto, Takao Itoi, Hideaki Miyazawa

{"title":"High-intensity focused ultrasound treatment for hepatocellular carcinoma.","authors":"Atsushi Sofuni, Hirohito Takeuchi, Katsutoshi Sugimoto, Takao Itoi, Hideaki Miyazawa","doi":"10.1007/s10396-024-01469-1","DOIUrl":"https://doi.org/10.1007/s10396-024-01469-1","url":null,"abstract":"High-intensity focused ultrasound (HIFU) represents a method employing high-intensity ultrasound energy to induce thermal ablation of cancerous cells. Regarded as minimally invasive, HIFU treatment offers reduced risk of complications and abbreviated recovery periods compared to surgical interventions. Although predominantly utilized in the management of pancreatic malignancies, ongoing investigations are exploring its viability in addressing hepatocellular carcinoma. Although HIFU may be employed independently in hepatocellular carcinoma treatment, its potential as a synergistic component within combination therapies is under scrutiny. Moreover, emerging research endeavors have explored the multifaceted utility of HIFU, encompassing not only localized thermal ablation but also functionalities like drug delivery and gene therapy, augmenting its therapeutic efficacy. Despite the promising outlook of HIFU in the management of hepatocellular carcinoma, existing constraints and challenges persist. Continued research initiatives and technological innovations are anticipated to propel HIFU into a pivotal and established therapeutic modality in the foreseeable future. This article provides an overview of HIFU therapy for hepatocellular carcinoma and presents a comprehensive update on its current clinical status.","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141472040","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

Diagnostic accuracy of ultrasound-derived fat fraction for the detection and quantification of hepatic steatosis in patients with liver biopsy. 用超声波得出的脂肪分数检测和量化肝活检患者肝脂肪变性的诊断准确性。

IF 1.9 4区医学

Journal of Medical Ultrasonics Pub Date : 2024-06-25 DOI: 10.1007/s10396-024-01472-6

Yoshiko Nakamura, Masashi Hirooka, Yohei Koizumi, Ryo Yano, Yusuke Imai, Takao Watanabe, Osamu Yoshida, Yoshio Tokumoto, Masanori Abe, Yoichi Hiasa

{"title":"Diagnostic accuracy of ultrasound-derived fat fraction for the detection and quantification of hepatic steatosis in patients with liver biopsy.","authors":"Yoshiko Nakamura, Masashi Hirooka, Yohei Koizumi, Ryo Yano, Yusuke Imai, Takao Watanabe, Osamu Yoshida, Yoshio Tokumoto, Masanori Abe, Yoichi Hiasa","doi":"10.1007/s10396-024-01472-6","DOIUrl":"https://doi.org/10.1007/s10396-024-01472-6","url":null,"abstract":"Purpose: This retrospective study was conducted to investigate the diagnostic accuracy of ultrasound-derived fat fraction (UDFF) for grading hepatic steatosis using liver histology as the reference standard.Methods: Seventy-three patients with liver disease were assessed using UDFF and liver biopsy. Pearson's test and the Bland-Altman plot were used to assess the correlation between UDFF and histological fat content in liver sections. The UDFF cutoff values for histologically proven steatosis grades were determined using the area under the receiver operating characteristic curve (AUROC).Results: The median age of the patients was 66 (interquartile range 54-74) years, and 33 (45%) were females. The UDFF values showed a stepwise increase with increasing steatosis grade (p < .001) and were strongly correlated with the histological fat content (r = .7736, p < .001). The Bland-Altman plot revealed a mean bias of 2.384% (95% limit of agreement, - 6.582 to 11.351%) between them. Univariate regression analysis revealed no significant predictors of divergence. The AUROCs for distinguishing steatosis grades of ≥ 1, ≥2, and 3 were 0.956 (95% confidence interval [CI], 0.910-1.00), 0.926 (95% CI, 0.860-0.993), and 0.971 (95% CI, 0.929-1.000), respectively. The UDFF cutoff value of > 6% had a sensitivity and specificity of 94.8% and 82.3%, respectively, for diagnosing steatosis grade ≥ 1. There was no association between UDFF and the fibrosis stage.Conclusion: UDFF shows strong agreement with the histological fat content and excellent diagnostic accuracy for grading steatosis. UDFF is a promising tool for detecting and quantifying hepatic steatosis in clinical practice.","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141452060","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

Iatrogenic aortocoronary arteriovenous fistula after coronary artery bypass grafting detected with transthoracic echocardiography. 通过经胸超声心动图发现冠状动脉旁路移植术后的先天性主动脉动静脉瘘。

IF 1.9 4区医学

Journal of Medical Ultrasonics Pub Date : 2024-06-21 DOI: 10.1007/s10396-024-01471-7

Yumi Yamamoto, Yasuhide Mochizuki, Ayaka Oda, Saori Chino, Rumi Hachiya, Hiroto Fukuoka, Toshiro Shinke

引用次数: 0

A case of portal vein gas due to accidental ingestion of hydrogen peroxide: the importance of performing ultrasound examinations over time. 一例因误食双氧水导致的门静脉积气病例：长期进行超声波检查的重要性。

IF 1.9 4区医学

Journal of Medical Ultrasonics Pub Date : 2024-06-20 DOI: 10.1007/s10396-024-01474-4

Kousuke Murayama, Tokuharu Tanaka, Takami Ishimoto, Hidenori Onishi, Hiroyuki Hayashi, Osamu Yamamura

引用次数: 0

Principle of contrast-enhanced ultrasonography. 造影剂增强超声波造影术的原理。

IF 1.9 4区医学

Journal of Medical Ultrasonics Pub Date : 2024-05-23 DOI: 10.1007/s10396-024-01443-x

Yoshitaka Mine, Etsuo Takada, Katsutoshi Sugimoto, Fuminori Moriyasu

{"title":"Principle of contrast-enhanced ultrasonography.","authors":"Yoshitaka Mine, Etsuo Takada, Katsutoshi Sugimoto, Fuminori Moriyasu","doi":"10.1007/s10396-024-01443-x","DOIUrl":"10.1007/s10396-024-01443-x","url":null,"abstract":"Sonazoid, an ultrasound contrast agent, has been covered by insurance in Japan since January 2007 for the diagnosis of hepatic mass lesions and is widely used for diagnosing not only primary liver cancer but also liver metastases such as those from breast cancer and colorectal cancer. Contrast-enhanced ultrasound for breast mass lesions has been covered by insurance since August 2012 after phase II and phase III clinical trials showed that the diagnostic performance was significantly superior to that of B-mode and contrast-enhanced magnetic resonance imaging. This paper describes the principles of imaging techniques in contrast-enhanced ultrasonography including the filter, pulse inversion, amplitude modulation, and amplitude-modulated pulse inversion methods. The pulse inversion method, which visualizes the second-harmonic component using the nonlinear scattering characteristics of the contrast agent, is widely used regardless of the contrast agent and target organ because of its high resolution. Sonazoid has a stiffer shell and requires a higher acoustic amplitude than Sonovue to generate nonlinear vibrations. The higher transmitted sound pressure generates more tissue harmonic components. Since pulse inversion allows visualization of the tissue harmonic components, amplitude modulation and amplitude-modulated pulse inversion, which include few tissue harmonic components, are primarily used. Amplitude modulation methods detect nonlinear signals from the contrast agent in the fundamental band. The mechanism of the amplitude modulation is considered to be changes in the echo signal's phase depending on the sound pressure. Since the tissue-derived component is minor in amplitude modulation methods, good contrast sensitivity can be obtained.","PeriodicalId":50130,"journal":{"name":"Journal of Medical Ultrasonics","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141082660","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

Disappearance of coronary artery to left ventricular fistula with diastolic mitral regurgitation 冠状动脉至左心室瘘消失伴舒张期二尖瓣反流

IF 1.8 4区医学

Journal of Medical Ultrasonics Pub Date : 2024-04-26 DOI: 10.1007/s10396-024-01459-3

Ikuo Misumi, Kei Miyanaka, Iwaho Hazekawa, Koji Sato, Akihisa Tabira, Hiroki Usuku, Kenichi Tsujita

引用次数: 0

Calcium oxalate crystals as a cause of multiple punctate echogenic foci in benign thyroid lesions. 草酸钙结晶是甲状腺良性病变中多发性点状回声灶的病因之一。

IF 1.8 4区医学

Journal of Medical Ultrasonics Pub Date : 2024-04-25 DOI: 10.1007/s10396-024-01448-6

A. Suzuki, M. Hirokawa, Izumi Otsuka, Akira Miyauchi, Takashi Akamizu

引用次数: 0

Correction: Relationship between the change in infrapatellar fat pad thickness assessed using ultrasonography and anterior knee pain on squatting after anterior cruciate ligament reconstruction. 更正：使用超声波检查评估髌下脂肪垫厚度的变化与前十字韧带重建术后下蹲时膝关节前部疼痛之间的关系。

IF 1.8 4区医学

Journal of Medical Ultrasonics Pub Date : 2024-04-24 DOI: 10.1007/s10396-024-01457-5

Ryo Shiraishi, Shinichiro Ueda

引用次数: 0

Severe traumatic tricuspid regurgitation detected 8 years after chest trauma. 胸部外伤 8 年后发现严重外伤性三尖瓣反流。

IF 1.8 4区医学

Journal of Medical Ultrasonics Pub Date : 2024-04-22 DOI: 10.1007/s10396-024-01452-w

Takahiro Nishihara, Yoichi Takaya, N. Toh, Shinsuke Yuasa

引用次数: 0