一种用于声辐射力弹性成像的新型运动补偿算法。
A novel motion compensation algorithm for acoustic radiation force elastography.
作者信息
Fahey B J, Hsu S J, Trahey G E
机构信息
Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA.
出版信息
IEEE Trans Ultrason Ferroelectr Freq Control. 2008 May;55(5):1095-111. doi: 10.1109/TUFFC.2008.762.
Abstract
A novel method of physiological motion compensation for use with radiation force elasticity imaging has been developed. The method utilizes a priori information from finite element method models of the response of soft tissue to impulsive radiation force to isolate physiological motion artifacts from radiation force-induced displacement fields. The new algorithmis evaluated in a series of clinically realistic imaging scenarios, and its performance is compared to that achieved with previously described motion compensation algorithms. Though not without limitations, the new model-based motion compensation algorithm performs favorably in many circumstances and may be a logical choice for use with in vivo abdominal imaging.
摘要
一种用于辐射力弹性成像的新型生理运动补偿方法已经被开发出来。该方法利用来自软组织对脉冲辐射力响应的有限元模型的先验信息，从辐射力诱导的位移场中分离出生理运动伪影。在一系列临床实际成像场景中对新算法进行了评估，并将其性能与先前描述的运动补偿算法所取得的性能进行了比较。尽管并非没有局限性，但新的基于模型的运动补偿算法在许多情况下表现良好，可能是用于体内腹部成像的合理选择。
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