Traceability of Elastic Parameters in Elastography-A Feasibility Study
Elastography is a developing imaging modality which can obtain the elastic property of the soft tissue. For its great potential clinical value, many elastographic algorithms and systems are developed by research groups and then applied in the clinical cases. In elastography, the Youngs modulus is the instinct quantity of the soft tissue and the corresponding parameters are expected to be traceable to the standard quantity. This process is the verification /calibration and is the need of the quality control. This paper attempted to simulate the transfer standards and study the feasibility of metrology in elastography. Several standard phantoms with known elastic properties were established as transfer standards, then the elastograms were obtained by certain imaging algorithm. The elastic quantity was extracted from the elastogram and then compared with the standard value. The results showed that ID (layered structure) model had the better contrast transfer efficiency than the 2D model, and the former might be an appropriate structure for the standard phantom used for quantity transfer in metrology.
elastography metrology calibration traceable transfer standard
Ke Liu Xin Bian Hong Fang Xin Zhou Jinhua Shao Xinjian Zhu Jing Bai
Division of Electronics and Information Technology,National Institute of Metrology P.R.China, Beijin Department of Biomedical Engineering, Tsinghua University, Beijing 100084, China
国际会议
上海
英文
554-557
2011-10-15（万方平台首次上网日期，不代表论文的发表时间）