Journal of Medical Ultrasonics (2001)最新文献

Value of shear wave elastography during second-look breast ultrasonography for suspicious lesions on magnetic resonance imaging. 剪切波弹性成像在乳房二次超声检查中对磁共振可疑病变的价值。

Journal of Medical Ultrasonics (2001) Pub Date : 2022-10-01 Epub Date: 2022-09-16 DOI: 10.1007/s10396-022-01253-z

Bo Mi Gil, Na Young Jung, Sung Hun Kim, Bong Joo Kang, Jeongmin Lee, Myung Hee Chung

{"title":"Value of shear wave elastography during second-look breast ultrasonography for suspicious lesions on magnetic resonance imaging.","authors":"Bo Mi Gil, Na Young Jung, Sung Hun Kim, Bong Joo Kang, Jeongmin Lee, Myung Hee Chung","doi":"10.1007/s10396-022-01253-z","DOIUrl":"10.1007/s10396-022-01253-z","url":null,"abstract":"Purpose: This study aimed to determine whether the addition of shear wave elastography (SWE) helps to improve diagnostic performance of second-look ultrasonography (SLUS) for suspicious lesions on magnetic resonance imaging (MRI).Methods: We retrospectively reviewed 76 breast lesions in 62 patients who underwent SLUS and SWE for suspicious lesions on MRI from August 2017 to November 2019. The six-point color scale (Ecol) and four-type color pattern (Epattern) were used for qualitative evaluation, and the mean (Emean) and maximum elasticity (Emax) and standard deviation of elasticity (ESD) were recorded as quantitative parameters. Clinical and imaging findings between benign and malignant lesions were compared, and the diagnostic performance was assessed using receiver-operating characteristic (ROC) analysis.Results: The biopsies revealed 52 benign and 24 malignant lesions. Of all SWE parameters, only ESD was significantly higher in malignant lesions than in benign lesions (p = 0.012). The sensitivity of B-mode US was 100%, but the specificity was low (19.2%). Using SWE parameters to classify lesions improved specificity at the expense of sensitivity. When lesions assigned to Breast Imaging Reporting and Data System (BI-RADS) category 3 or 4a were reclassified considering each SWE parameter, the area under the ROC curve (AUC) and sensitivity increased. The AUC of the US BI-RADS category adjusted by ESD was higher than that of B-mode US BI-RADS (0.770 vs. 0.746).Conclusion: SWE parameters, and especially ESD, may play a complimentary role in improving the specificity of SLUS. However, the decision to omit biopsies for suspicious lesions with soft features should be made with caution.","PeriodicalId":111320,"journal":{"name":"Journal of Medical Ultrasonics (2001)","volume":" ","pages":"719-730"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40365238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrasonography: an interesting imaging method for ligament assessment during the acute phase of closed elbow injuries. 超声检查：闭合性肘关节损伤急性期韧带评估的一种有趣的影像学方法。

Journal of Medical Ultrasonics (2001) Pub Date : 2022-10-01 Epub Date: 2022-08-09 DOI: 10.1007/s10396-022-01246-y

Romain Bilger, Pierre Laumonerie, Hugo Barret, Franck Lapègue, Pierre Mansat, Nicolas Sans, Marie Faruch-Bilfeld

{"title":"Ultrasonography: an interesting imaging method for ligament assessment during the acute phase of closed elbow injuries.","authors":"Romain Bilger, Pierre Laumonerie, Hugo Barret, Franck Lapègue, Pierre Mansat, Nicolas Sans, Marie Faruch-Bilfeld","doi":"10.1007/s10396-022-01246-y","DOIUrl":"10.1007/s10396-022-01246-y","url":null,"abstract":"Purpose: To evaluate whether ultrasonography can be used to explore the medial and lateral ligament structures during the acute phase of a closed elbow injury.Methods: A single-center, prospective study performed between December 2019 and June 2020, including patients who suffered a radial head fracture or elbow dislocation. Two radiologists did a blinded analysis using ultrasonography of visibility, injury grade, and presence of bone avulsion for the radial collateral ligament (RCL), lateral ulnar collateral ligament (LUCL), annular ligament (AL), and anterior (MCLant) and posterior bundles (MCLpost) of the medial collateral ligament. The inter-rater agreement was calculated. The ultrasonography findings were compared with the intraoperative findings in the patients who subsequently underwent surgery.Results: Forty patients were included (28 radial head fractures and 12 elbow dislocations). The inter-rater agreement was strong for all the study parameters (kappa between 0.65 and 1), except for the visibility of the LUCL (kappa 0.52) and the visibility and appearance of the MCLpost (kappa 0.54 and 0.47, respectively). The injured ligaments were thicker than their contralateral counterparts (p < 0.05). In the 10 patients who underwent surgery, the radiological-surgical correlation was 100% for the RCL and medial ligaments and 70% for the LUCL.Conclusion: Ultrasonography is a reproducible examination that can be used to assess the damage to elbow ligaments during the acute phase following an injury. This examination could be incorporated into the exploration protocol for elbow injuries during the preoperative assessment and to adapt the treatment.","PeriodicalId":111320,"journal":{"name":"Journal of Medical Ultrasonics (2001)","volume":" ","pages":"739-746"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40693094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic response of medial meniscus extrusion to the lateral wedge insole is correlated with immediate pain reduction in knee osteoarthritis patients: real-time ultrasonographic study. 内侧半月板挤压外侧楔形鞋垫的动态响应与膝关节骨性关节炎患者的即时疼痛减轻相关：实时超声研究。

Journal of Medical Ultrasonics (2001) Pub Date : 2022-10-01 Epub Date: 2022-07-05 DOI: 10.1007/s10396-022-01234-2

Yosuke Ishii, Masakazu Ishikawa, Yuko Nakashima, Makoto Takahashi, Yoshitaka Iwamoto, Kaoru Okada, Kazuya Takagi, Toru Sunagawa, Nobuo Adachi

{"title":"Dynamic response of medial meniscus extrusion to the lateral wedge insole is correlated with immediate pain reduction in knee osteoarthritis patients: real-time ultrasonographic study.","authors":"Yosuke Ishii, Masakazu Ishikawa, Yuko Nakashima, Makoto Takahashi, Yoshitaka Iwamoto, Kaoru Okada, Kazuya Takagi, Toru Sunagawa, Nobuo Adachi","doi":"10.1007/s10396-022-01234-2","DOIUrl":"10.1007/s10396-022-01234-2","url":null,"abstract":"Purpose: To investigate the effect of lateral wedge insole (LWI) on medial meniscus extrusion (MME) observed during dynamic evaluation with ultrasound and its correlation with the alteration in knee pain in patients with knee osteoarthritis (OA).Methods: This cohort study included 25 participants with knee OA. The medial meniscus was imaged during walking in video mode using ultrasonography. The degree of increase in MME (ΔMME) was calculated as the difference in the value of the maximum and minimum MME. The intensity of knee pain was evaluated immediately after the walking trial using the visual analogue scale (VAS). These measurements were performed with and without the LWI. The participants were categorised into the responder group, which was identified by the constant reduction in the VAS, and the non-responder group.Results: MME, ΔMME, and knee pain during walking were significantly lower with the LWI than without the LWI (p < 0.01). The reduction in ΔMME with the LWI in the responder group was significantly higher than that in the non-responder group (p < 0.01).Conclusions: Our findings showed that MME and knee pain during walking decreased with LWI use, especially in patients whose reduction in knee pain was characterised by inhibition in the increase in MME observed during dynamic evaluation with ultrasound.","PeriodicalId":111320,"journal":{"name":"Journal of Medical Ultrasonics (2001)","volume":" ","pages":"731-738"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40473898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine learning-enabled quantitative ultrasound techniques for tissue differentiation. 组织分化的机器学习定量超声技术。

IF 1.8

Journal of Medical Ultrasonics (2001) Pub Date : 2022-10-01 Epub Date: 2022-07-15 DOI: 10.1007/s10396-022-01230-6

Hannah Thomson, Shufan Yang, Sandy Cochran

{"title":"Machine learning-enabled quantitative ultrasound techniques for tissue differentiation.","authors":"Hannah Thomson, Shufan Yang, Sandy Cochran","doi":"10.1007/s10396-022-01230-6","DOIUrl":"https://doi.org/10.1007/s10396-022-01230-6","url":null,"abstract":"Purpose: Quantitative ultrasound (QUS) infers properties about tissue microstructure from backscattered radio-frequency ultrasound data. This paper describes how to implement the most practical QUS parameters using an ultrasound research system for tissue differentiation.Methods: This study first validated chicken liver and gizzard muscle as suitable acoustic phantoms for human brain and brain tumour tissues via measurement of the speed of sound and acoustic attenuation. A total of thirteen QUS parameters were estimated from twelve samples, each using data obtained with a transducer with a frequency of 5-11 MHz. Spectral parameters, i.e., effective scatterer diameter and acoustic concentration, were calculated from the backscattered power spectrum of the tissue, and echo envelope statistics were estimated by modelling the scattering inside the tissue as a homodyned K-distribution, yielding the scatterer clustering parameter α and the structure parameter κ. Standard deviation and higher-order moments were calculated from the echogenicity value assigned in conventional B-mode images.Results: The k-nearest neighbours algorithm was used to combine those parameters, which achieved 94.5% accuracy and 0.933 F1-score.Conclusion: We were able to generate classification parametric images in near-real-time speed as a potential diagnostic tool in the operating room for the possible use for human brain tissue characterisation.","PeriodicalId":111320,"journal":{"name":"Journal of Medical Ultrasonics (2001)","volume":" ","pages":"517-528"},"PeriodicalIF":1.8,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9640462/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40526678","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}

引用次数: 2

Shifting the emphasis from presymptomatic states to preemptive medicine: increasing the scope of medical ultrasound. 将重点从症状前状态转移到先发制人的医疗:增加医学超声的范围。

IF 1.8

Journal of Medical Ultrasonics (2001) Pub Date : 2022-10-01 Epub Date: 2022-11-07 DOI: 10.1007/s10396-022-01268-6

Yoshiki Hirooka

引用次数: 0

Evaluation of local changes in radio-frequency signal waveform and brightness caused by vessel dilatation for ascertaining reliability of elasticity estimation inside heterogeneous plaque: a preliminary study. 评估由血管扩张引起的射频信号波形和亮度的局部变化，以确定非均匀斑块内弹性估计的可靠性：初步研究。

Journal of Medical Ultrasonics (2001) Pub Date : 2022-10-01 Epub Date: 2022-07-16 DOI: 10.1007/s10396-022-01229-z

Yuta Haji, Shohei Mori, Mototaka Arakawa, Toshio Yamagishi, Hiroshi Kanai

{"title":"Evaluation of local changes in radio-frequency signal waveform and brightness caused by vessel dilatation for ascertaining reliability of elasticity estimation inside heterogeneous plaque: a preliminary study.","authors":"Yuta Haji, Shohei Mori, Mototaka Arakawa, Toshio Yamagishi, Hiroshi Kanai","doi":"10.1007/s10396-022-01229-z","DOIUrl":"10.1007/s10396-022-01229-z","url":null,"abstract":"Purpose: To diagnose plaque characteristics, we previously developed an ultrasonic method to estimate the local elastic modulus from the ratio of the pulse pressure to the strain of the arterial wall due to dilatation in systole by transcutaneously measuring the minute thinning in thickness during one cardiac cycle. For plaques, however, some target regions became thicker as the vessel dilates, resulting in false elasticity. Therefore, a method to identify a reliable target for the elastic modulus estimation is indispensable. As a candidate for an identification index of plaques that become thicker during one cardiac cycle, the correlation of the radio-frequency (RF) signals remains high and it is not sufficient to obtain the elasticity. In this study, we thoroughly observed the target with a high correlation but positive strain in the plaque and characterized it by the property of the surrounding area.Methods: For the plaque formed in the right carotid sinus of a patient with hyperlipidemia and the wall of the right common carotid artery of a young healthy male, (1) the correlation value as the similarity between the RF signals, (2) change in brightness obtained from the log-compressed envelope signals, and (3) strain obtained between the time of the R-wave and that of the maximum vessel dilatation were observed to characterize the region in the plaque.Results: In the plaque, it was found that the region with high correlation and positive strain and its surrounding area could be classified into one of the three typical patterns.Conclusion: As a preliminary study, this study provides a clue to assert the reliability of elasticity estimates for a region with high correlation and positive strain in the plaque based on measurable properties.","PeriodicalId":111320,"journal":{"name":"Journal of Medical Ultrasonics (2001)","volume":" ","pages":"529-543"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40598390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrasound-guided surgery in musculoskeletal medicine. 超声引导下的肌肉骨骼医学手术。

Journal of Medical Ultrasonics (2001) Pub Date : 2022-10-01 Epub Date: 2022-11-07 DOI: 10.1007/s10396-022-01255-x

Soichi Hattori, Kentaro Onishi

引用次数: 0

Recurrent ovarian hemangioma extending via the inferior vena cava to the right heart mimicking leiomyomatosis and visualized by echocardiography. 复发性卵巢血管瘤经下腔静脉延伸至右心，类似平滑肌瘤病，超声心动图可见。

Journal of Medical Ultrasonics (2001) Pub Date : 2022-10-01 Epub Date: 2022-09-27 DOI: 10.1007/s10396-022-01258-8

Toshimitsu Kato, Noriaki Takama, Tomoaki Ishii, Katsumi Kaneko, Yoshiaki Kaneko, Hideki Ishii, Masami Murakami

引用次数: 0

Application of low-complexity generalized coherence factor to in vivo data. 低复杂度广义相干因子在体内数据中的应用。

Journal of Medical Ultrasonics (2001) Pub Date : 2022-10-01 Epub Date: 2022-08-30 DOI: 10.1007/s10396-022-01243-1

Masanori Hisatsu, Shohei Mori, Mototaka Arakawa, Hiroshi Kanai

{"title":"Application of low-complexity generalized coherence factor to in vivo data.","authors":"Masanori Hisatsu, Shohei Mori, Mototaka Arakawa, Hiroshi Kanai","doi":"10.1007/s10396-022-01243-1","DOIUrl":"10.1007/s10396-022-01243-1","url":null,"abstract":"Purpose: Beamforming using the generalized coherence factor (GCF) reduces sidelobe artifacts and provides an excellent contrast-to-noise ratio. We previously proposed GCFreal, a method to calculate GCF without generating analytic signals, and GCFbin, a method to calculate GCF by binarizing the received signals. In this study, we applied these methods to in vivo data and showed the effect of the computational complexity reduction on contrast performance.Methods: Channel RF data were acquired from the human liver and gallbladder. We set up several observation points in each data set and investigated the mechanism that causes the differences in contrast performance among the methods based on the signals and their power spectra in the channel direction.Results: For GCF and GCFreal, the obtained values were almost the same. However, there were large differences in GCFbin from GCF when the signals from the focus point or from outside the focus point were received on different channels. This is because the amplitudes of the signals with high coherence and those with low coherence were changed by binarizing the signals.Conclusion: While GCFbin can significantly reduce the computational complexity, there are differences in the values of GCFbin and GCF due to binarizing of the received signals. However, this difference resulted in GCFbin being superior to GCF in terms of artifact reduction. This is owing to the elimination of amplitude information in GCFbin, which makes it a new efficient coherence factor with different characteristics from GCF.","PeriodicalId":111320,"journal":{"name":"Journal of Medical Ultrasonics (2001)","volume":" ","pages":"555-567"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40331098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New modified technique of hydrogel spacer implantation for prostate cancer: a novel method for separation at the prostate apex level under real-time ultrasound guidance. 前列腺癌水凝胶间隔植入新改良技术:实时超声引导下前列腺顶点分离的新方法。

Journal of Medical Ultrasonics (2001) Pub Date : 2022-10-01 Epub Date: 2022-09-16 DOI: 10.1007/s10396-022-01254-y

Tsukasa Narukawa, Takumi Shiraishi, Norihiro Aibe, Atsuko Fujihara, Fumiya Hongo, Hideya Yamazaki, Osamu Ukimura

引用次数: 0