Results 11 to 20 of about 74,204 (263)

Intelligent Prediction of Cryptogenic Stroke Using Patent Foramen Ovale from TEE Imaging Data and Machine Learning Methods

International Journal of Computational Intelligence Systems, 2022
In spite of the popularity of random forests (RF) as an efficient machine learning algorithm, methods for constructing the potential association for between patent foramen ovale (PFO) and cryptogenic stroke (CS) using this technique are still barely. For
Jiao Bai, Jia Yang, Wanwan Song, Yumin Liu, Haibo Xu, Yang Liu   +5 more
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Dynamic prostatic and laser-ablated lesion volume change after transperineal laser ablation in canine: preliminary observation and its clinical significance

International Journal of Hyperthermia, 2020
Aim The purpose of this study is to observe the volume change of prostate and laser-ablated lesions in the canine and to explore the mechanism and clinical significance through histopathology. Materials and methods Transperineal laser ablation (TPLA) was
Rui-Qing Liu, Ji-Bin Liu, Shao-bo Duan, Si-Guo Cheng, Zhi-Yang Chang, Hui-cun Cao, Guang-Shao Cao, Ya-Qiong Li, Na Li, Lian-Zhong Zhang   +9 more
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Prognostic Risk Factors of 30-Day Death in Traumatic Lower Limb Fracture Patients with Acute Pulmonary Embolism: A Single-Center Retrospective Study

Canadian Respiratory Journal, 2023
Background. To explore the prognostic risk factors of 30-day death in patients with traumatic lower limb fracture (TLLF) complicated with acute pulmonary embolism (APE). Methods.
Huanhuan Li, Yijun Yu, Yuting Wang, Qian Zhang, Ye Gu   +4 more
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A Review of Transparent Sensors for Photoacoustic Imaging Applications

Photonics, 2021
Photoacoustic imaging is a new type of noninvasive, nonradiation imaging modality that combines the deep penetration of ultrasonic imaging and high specificity of optical imaging.
Danyang Ren, Yizhe Sun, Junhui Shi, Ruimin Chen   +3 more
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The diagnostic value of ultrasound in pediatric testicular torsion with preserved flow

Frontiers in Pediatrics, 2022
BackgroundTesticular torsion is the reduction of blood flow to the testis after spermatic cord torsion. For patients, the diagnosis of testicular torsion is controversial and complicated by the fact that ultrasound blood flow signals are not ...
Zhihua Xu, Junbo Wu, Shuangshuang Ni, Hongxia Luo   +3 more
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Computers in ultrasonic imaging [PDF]

Journal of Digital Imaging, 1992
This article describes the role of computers and digital electronics in state-of-the-art diagnostic ultrasound scanners. An overview of the computational requirements is provided, and limits on color flow image frame rates are discussed. The new scanner architectures emerging may be used to extend current limitations of ultrasonography, making features
Timothy J. Hall, Stanton J. Rosenthal, Michael F. Insana, Arch W. Templeton   +3 more
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A Novel Relative Position Estimation Method for Capsule Robot Moving in Gastrointestinal Tract

Sensors, 2019
Recently, a variety of positioning and tracking methods have been proposed for capsule robots moving in the gastrointestinal (GI) tract to provide real-time unobstructed spatial pose results.
Min Wang, Qinyuan Shi, Shuang Song, Chao Hu, Max Q.-H. Meng   +4 more
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Early Diagnosis of Abnormal Left Ventricular Systolic Functions of Rare Pathogenic Titin Mutation Gene Carriers in FHCM by Three-Dimensional Speckle Tracking Echocardiography Combined with Gene Detection

International Journal of Clinical Practice, 2022
Objective. This study aimed to explore the early diagnosis of abnormal left ventricular systolic function of rare pathogenic titin (TTN) mutation gene carriers in familial hypertrophic cardiomyopathy (FHCM) by three-dimensional speckle tracking ...
Xiang-hong Luo, Rui Zhu, Qian Chen, Pei-hong Shi, Li-sha Na   +4 more
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Sound Field Modeling Method and Key Imaging Technology of an Ultrasonic Phased Array: A Review

Applied Sciences, 2022
An ultrasonic phased array consists of multiple ultrasonic probes arranged in a certain regular order, and the delay time of the excitation signal sent to each array element is controlled electronically.
Qian Xu, Haitao Wang
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Multi Spherical Wave Imaging Method Based on Ultrasonic Array

Sensors, 2022
The imaging range of traditional plane wave imaging is usually limited by the directivity of the plane wave. In this paper, a multi spherical wave imaging method based on an ultrasonic array is proposed, which radiates both compression and shear waves in
Zhi-Ying Liu, Ping Zhang, Bi-Xing Zhang, Wen Wang   +3 more
doaj   +1 more source