A Transient Elastography System for Biotissue Stiffness Measurement and the Jitter Comparison of Two Displacement Tracking Algorithms

摘要：

Elastography is an emerging ultrasonic imaging technique. Strain estimates are obtained using a derivation algorithm applied to the displacement calculated from ultrasound echoes. Two time domain cross correlation method for displacement tracking and their application field are discussed. A system based on transient elastography is built to measure biological tissues’ stiffness. The strain result from the tissue-mimicking phantom proves the system can accurately measure tissue youngs modulus. Finally the jitter effect calculated from the human leg data of two displacement tracking algorithms are compared, it shows the cross correlation method based on parabolic interpolation is more appreciate for our system.

关键词： transient elastography displacement tracking strain cross correlation jitter

作者: XU Chen LIN Tao YAO Hui ZHENG Hai-Rong

作者单位: Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518067 Key Laboratory for Biomedical Informatics and Health Enginee

会议类型: 国际会议

会议名称: Yangtze River 2009 International Conference on Medical Imaging Physics & The 5th National Annual Meeting of Medical Imaging Physics(长江2009国际医学影像物理和工程大会暨第五届中国医学影像物理学术年会ICMIP2009)

会议地点: 南京

会议语种:英文

页码: 152-155

在线出版日期: 2009-10-23（万方平台首次上网日期，不代表论文的发表时间）