Role of Advanced Hemodynamic Ultrasound Evaluation in the Differential Diagnosis of Middle Cerebral Artery Stenosis: Introducing Morphological Criteria
The aim of the work described here was to determine the possible impact of the new technique advanced hemodynamic ultrasound evaluation (AHUSE) in identification of severe intracranial stenosis. Transcranial Doppler (TCD) and transcranial color-coded Doppler (TCCD) provide reliable velocimetric data, the indirect analysis of which allows us to obtain information on the patency of vessels and assumed stenosis range. However, very tight stenoses (>95%) cannot be detected with velocimetric criteria because of spectrum drops and the absence of high velocities, so that the right curve of the Spencer equation cannot be solved. (...
Source: Ultrasound in Medicine and Biology - August 5, 2023 Category: Radiology Authors: Giovanni Malferrari, Nicola Merli, Vincenzo Inchingolo, Antonio Siniscalchi, Domenico Laterza, Daniela Monaco, Giorgia Arnone, Andrea Zini, Francesco Prada, Cristiano Azzini, Maura Pugliatti Tags: Technical Note Source Type: research
Complex Transformer Network for Single-Angle Plane-Wave Imaging
Plane-wave imaging (PWI) is a high-frame-rate imaging technique that sacrifices image quality. Deep learning can potentially enhance plane-wave image quality, but processing complex in-phase and quadrature (IQ) data and suppressing incoherent signals pose challenges. To address these challenges, we present a complex transformer network (CTN) that integrates complex convolution and complex self-attention (CSA) modules. (Source: Ultrasound in Medicine and Biology)
Source: Ultrasound in Medicine and Biology - August 4, 2023 Category: Radiology Authors: Xiaolei Qu, Chujian Ren, Zihao Wang, Shuangchun Fan, Dezhi Zheng, Shuai Wang, Hongxiang Lin, Jue Jiang, Weiwei Xing Tags: Original Contribution Source Type: research
Standardized Methodology for Duplex Ultrasound Examination of Arteriovenous Access for Hemodialysis: A Proposal of the French Society of Vascular Medicine and the French-Speaking Society of Vascular Access
Duplex ultrasound (DUS) is an essential tool for characterizing and monitoring arteriovenous (AV) access for hemodialysis. The aim of the work described here, requested by the French Society of Vascular Medicine in collaboration with the French-Speaking Vascular Access Society, is to propose a standardized methodology for performing and documenting DUS, taking into account the variety of AV access techniques and the problems routinely encountered. A steering committee reviewed the literature and selected the relevant references. (Source: Ultrasound in Medicine and Biology)
Source: Ultrasound in Medicine and Biology - August 4, 2023 Category: Radiology Authors: Olivier Pichot, Antoine Diard, Jean-Yves Bosc, Fabrice Abbadie, Gilbert Franco, Guillaume Mah é, Nirvana Sadaghianloo, AV Access Network Investigators, on behalf of the Société Française de Médecine Vasculaire and the Société Francophone de l'Abord Tags: Review Source Type: research
Myofibroblasts: A New Factor Affecting the Hyperlipidemia-Induced Elastic Abnormality of Corpus Cavernosum in Rabbits Detected by 2-D Shear Wave Elastography
This study investigated cytological factors affecting the elasticity of the corpus cavernosum in rabbits with hyperlipidemia using single-cell RNA sequencing (scRNA-seq). (Source: Ultrasound in Medicine and Biology)
Source: Ultrasound in Medicine and Biology - August 4, 2023 Category: Radiology Authors: Wan-Ting Rao, Shuai Jiang, Yi-Hao Shen, Yan-He Wang, Sen-Ning Liu, Jing-Dong Tang, Jin-Fang Xing Tags: Original Contribution Source Type: research
Coplanarity Constrained Ultrasound Probe Calibration Based on N-Wire Phantom
N-wire phantom-based ultrasound probe calibration has been used widely in many freehand tracked ultrasound imaging systems. The calibration matrix is obtained by registering the coplanar point cloud in ultrasound space and non-coplanar point cloud in tracking sensor space based on the least squares method. This method is sensitive to outliers and loses the coplanar information of the fiducial points. In this article, we describe a coplanarity-constrained calibration algorithm focusing on these issues. (Source: Ultrasound in Medicine and Biology)
Source: Ultrasound in Medicine and Biology - August 2, 2023 Category: Radiology Authors: Wenliang Lu, Jiye Chen, Yuan Wang, Wanru Chang, Yun Wang, Chaowei Chen, Linan Dong, Ping Liang, Dexing Kong Tags: Original Contribution Source Type: research
Impaired Dynamic Cerebral Autoregulation in Patients With Cerebral Venous Sinus Thrombosis: Evaluation Using Transcranial Doppler and Silent Reading Stimulation
This study explored the effects of CVST on dCA of the MCA and PCA during silent reading and NVC. (Source: Ultrasound in Medicine and Biology)
Source: Ultrasound in Medicine and Biology - August 1, 2023 Category: Radiology Authors: Songwei Chen, Hongxiu Chen, Jiangang Duan, Liuping Cui, Ran Liu, Yingqi Xing Tags: Original Contribution Source Type: research
General Multiscenario Ultrasound Image Tumor Diagnosis Method Based on Unsupervised Domain Adaptation
According to the 2020 global report on cancer by Sung et al. [1], breast cancer accounts for 24.5% of all cancer cases and is the predominant cancer among women worldwide. Clinical trials have reported that some treatment methods are effective for early-stage breast cancer, making early detection of breast cancer critical. Breast ultrasound imaging has become the preferred method for breast mass screening and diagnosis, with advantages such as high resolution, no radiation and non-invasiveness, and can effectively detect the location, size, shape and other information on breast masses, facilitating early detection of breas...
Source: Ultrasound in Medicine and Biology - July 31, 2023 Category: Radiology Authors: Lin Fan, Xun Gong, Ying Guo Tags: Original Contribution Source Type: research
Comment on “A Risk-Prediction Model for Placenta Accreta Spectrum Severity From Standardized Ultrasound Markers”
We read with great interest the recently published article [1] titled “A Risk-Prediction Model for Placenta Accreta Spectrum Severity From Standardized Ultrasound Markers.” We commend the authors for their pioneering work in developing a risk-prediction model for placenta accreta spectrum (PAS) severity using standardized ultrasound markers. PAS is a complex obste tric condition that poses significant risks to both maternal and fetal health. Early identification and accurate risk assessment of PAS severity are vital in formulating appropriate management strategies and optimizing patient outcomes. (Source: Ultrasound in...
Source: Ultrasound in Medicine and Biology - July 29, 2023 Category: Radiology Authors: Liping Shao, Shulan Li Tags: Letter to the Editor-in-Chief Source Type: research
Masthead
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Source: Ultrasound in Medicine and Biology - July 28, 2023 Category: Radiology Source Type: research
Editorial Advisory Board
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Source: Ultrasound in Medicine and Biology - July 28, 2023 Category: Radiology Source Type: research
Contents
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Source: Ultrasound in Medicine and Biology - July 28, 2023 Category: Radiology Source Type: research
Non-invasive Measurement of the Viscoelasticity of the Optic Nerve and Sclera for Assessing Papilledema: A Pilot Clinical Study
The purpose of this study was to evaluate our novel ultrasound vibro-elastography (UVE) technique for assessing patients with papilledema by non-invasively measuring shear wave speed (SWS), elasticity and viscosity properties of the optic nerve and sclera. (Source: Ultrasound in Medicine and Biology)
Source: Ultrasound in Medicine and Biology - July 28, 2023 Category: Radiology Authors: Ngoc Thang Bui, Arash Kazemi, Arthur J. Sit, Nicholas B. Larson, James Greenleaf, John J. Chen, Xiaoming Zhang Tags: Original Contribution Source Type: research
Ultrasound LI-RADS Visualization Scores on Surveillance Ultrasound for Hepatocellular Carcinoma: A Systematic Review With Meta-analysis
We performed a systematic review and meta-analysis to determine the proportions of each surveillance ultrasound (US) visualization score for hepatocellular carcinoma based on the US Liver Imaging Reporting and Data System (LI-RADS) and to identify the factors associated with visualization score C. Original publications reporting US LI-RADS visualization scores were identified in MEDLINE and EMBASE from January 1, 2017, to November 25, 2022. The meta-analytic pooled proportion of each visualization score based on US examination was calculated using the DerSimonian ‒Laird random-effects model. (Source: Ultrasound in Medicine and Biology)
Source: Ultrasound in Medicine and Biology - July 28, 2023 Category: Radiology Authors: Ji Hun Kang, Nam Hee Kim, Dong Hwan Kim, Yangsean Choi, Joon-Il Choi Tags: Review Article Source Type: research
Contrast-Enhanced Ultrasonography for Transabdominal and Transrectal Ultrasound in Staging Cervical Cancer: A Reliability Study
This retrospective study aimed to evaluate the consistency of transrectal contrast-enhanced ultrasonography (TR-CEUS) with post-operative pathology and the value of contrast-enhanced ultrasonography (CEUS) in staging surgically treated cervical cancer when combined with conventional ultrasonography (US). (Source: Ultrasound in Medicine and Biology)
Source: Ultrasound in Medicine and Biology - July 24, 2023 Category: Radiology Authors: Juan Zhang, Jiang-Dong Xiang, Chao Jia, Lian-Fang Du, Fan Li Tags: Original Contribution Source Type: research
Myofascial Trigger Point Identification in B-Mode Ultrasound: Texture Analysis Versus a Convolutional Neural Network Approach
Myofascial pain syndrome (MPS) is one of the most common causes of chronic pain and affects a large portion of patients seen in specialty pain centers as well as primary care clinics. Diagnosis of MPS relies heavily on a clinician's ability to identify the presence of a myofascial trigger point (MTrP). Ultrasound can help, but requires the user to be experienced in ultrasound. Thus, this study investigates the use of texture features and deep learning strategies for the automatic identification of muscle with MTrPs (i.e., active and latent MTrPs) from normal (i.e., no MTrP) muscle. (Source: Ultrasound in Medicine and Biology)
Source: Ultrasound in Medicine and Biology - July 24, 2023 Category: Radiology Authors: Ryan G.L. Koh, Banu Dilek, Gongkai Ye, Alper Selver, Dinesh Kumbhare Tags: Original Contribution Source Type: research
