Meeting Banner
Abstract #3168

Motion Correction of Multi-b-value Diffusion-Weighted Images in the Kidney by Pyramidal Lucas-Kanade Registration

Jun Lv1, Wenjian Huang1, Jue Zhang1,2, Xiaoying Wang1,3, and Jing Fang1,2

1Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, People's Republic of China, 2College of Engineering, Peking University, Beijing, People's Republic of China, 3Department of Radiology, Peking University First Hospital, Beijing, People's Republic of China

Intravoxel incoherent motion diffusion weighted imaging (IVIM-DWI) is a novel functional MRI technique which has been demonstrated with excellent diagnostic capability. Respiratory motion artifacts are the main source of error in the acquisition and quantiļ¬cation of parameters for multi-b-value DWI. This work develops a reliable approach to compensate for misalignments between multi-b-value images during free-breathing based on pyramidal Lucas-Kanade registration. Preliminary results show that our proposed approach can well correct motion-related artifacts misalignment. In addition, visual quality of the ADC, f, D and D* maps indicate that contours of kidney look better defined after registration.

This abstract and the presentation materials are available to members only; a login is required.

Join Here