Phase-Based Registration of Cardiac Tagged MR Images by Incorporating Anatomical Constraints

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• 关键词：Cardiac tagged MR ; Strain ; Tag number constant constraint
• 刊名：Lecture Notes in Computer Science
• 出版年：2017
• 出版时间：2017
• 年：2017
• 卷：10124
• 期：1
• 页码：39-47
• 丛书名：Statistical Atlases and Computational Models of the Heart. Imaging and Modelling Challenges
• ISBN：978-3-319-52718-5
• 卷排序：10124

文摘

This paper presents a novel method that combines respective benefits of the tracking-based methods and the Gabor-based non-tracking approaches for improving the motion/strain quantification from tagged MR images. The “tag number constant” concept used in Gabor-based non-tracking methods is integrated into a recent phase-based registration framework. We evaluated our method on both synthetic and real data: (1) on a synthetic data of a normal heart, we found that the constraint improved both longitudinal and circumferential strains accuracies; (2) on 15 healthy volunteers, the proposed method achieved better tracking accuracy compared to three state-of-the-art methods; (3) on one patient dataset, we show that our method is able to distinguish the infarcted segments from the normal ones.