A Robust Phase Zero Estimator for Ultrasonic Elastography Using Qualityguided Seeding Strategy
Ultrasonic elastography is an imaging technique of obtaining tissue relative stiffness information. This imaging modality has been shown to be useful in different clinical applications such as tumor detection. Many algorithms for elastography have been presented recently; However, most of them are either inefficient for real-time or not robust for general clinical applications. In this paper we develop a new strain imaging technique named robust phase zero(RPZ) which can obtain robust motion tracking and improve image quality without a loss of real time. This technique mainly includes using 2-D complex crosscorrelation technique, conducting quality-guided seeding strategy and correcting displacement field by displacement location estimation. Both simulation and phantom experiments show that the RPZ can suppress error propagation and improve elastogram SNRe. The experiment results also validate that the proposed technique is a robust and efficient approach for strain imaging.
Shaoguo Cui Caibi Peng Ming Li Ping Ke Juan Bao Xiao Wang
Computer Center,Yunyang Medical College, Shiyan,China; Computer College,Sichuan University,Chengdu,C Affiliated Taihe Hospital of Yunyang Medical College,Shiyan, China Computer Center,Yunyang Medical College, Shiyan,China
国际会议
上海
英文
1222-1226
2010-10-20（万方平台首次上网日期，不代表论文的发表时间）