نتایج جستجو برای: virtual touch tissue quantitative

تعداد نتایج: 1358717  

2012
Yi-Feng Zhang Hui-Xiong Xu Yong He Chang Liu Le-Hang Guo Lin-Na Liu Jun-Mei Xu

OBJECTIVE Virtual touch tissue quantification (VTQ) of acoustic radiation force impulse (ARFI) is a new quantitative technique to measure tissue stiffness. The study was aimed to assess the usefulness of VTQ in the diagnosis of thyroid nodules. METHODS 173 pathologically proven thyroid nodules in 142 patients were included and all were examined by conventional ultrasound (US), conventional el...

2016
Peige Zhang Li Zhang Shaoping Zheng Cheng Yu Mingxing Xie Qing Lv

OBJECTIVE To evaluate the overall performance of acoustic radiation force impulse imaging (ARFI) in differentiating between benign and malignant lymph nodes (LNs) by conducting a meta-analysis. METHODS PubMed, Embase, Web of Science, the Cochrane Library and the China National Knowledge Infrastructure were comprehensively searched for potential studies through August 13th, 2016. Studies that ...

Journal: :International journal of clinical and experimental medicine 2015
Dan-Dan Li Le-Hang Guo Hui-Xiong Xu Chang Liu Jun-Mei Xu Li-Ping Sun Jian Wu Bo-Ji Liu Lin-Na Liu Xiao-Hong Xu

This meta-analysis was aimed to assess the diagnostic performance of acoustic radiation force impulse (ARFI) elastography for the differentiation of malignant and benign breast lesions. The databases of PubMed, Web of Science(TM), WanFang, Vip, SinoMed and China National Knowledge Infrastructure were searched for all studies that evaluated the diagnostic performance of ARFI including virtual to...

Journal: :Journal of Visualization and Computer Animation 2007
Hui Chen Wen Wu Hanqiu Sun Pheng-Ann Heng

Palpation is an important method of feeling with hands during a physical examination, in which the doctor presses on the surface of the patient body to feel the organs or tissues underneath. In current surgical simulation systems, the lack of an effective sense of touch is still a major problem. In this paper, a dynamic touch-enabled virtual palpation model is proposed. The palpation force sens...

2011
Smita Das Dwijen Rudrapal Anupam Jamatia Lalita Kumari

Virtual Touch Screen, on a projected area, is a system in which the projection on any ordinary flat surface provides us a graphical work-field for controlling specific kind of operations without any sophisticated touch sensors. Moreover, an ordinary screen area can be transformed into virtual touch screen with the use of a webcam and a projector. The webcam can take the picture of an indicator ...

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