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Abstract #2495

The Effect of Phase Cross-contamination by Partial Central K-space in Cine Phase Contrast MRI

Teng-Chieh Cheng 1 , Yi-Jui Liu 1 , Yi-Hsiung Lee 2 , Wen-Chau Wu 3 , Teng-Yi Huang 4 , Chao-Chun Lin 5 , Chia-Wei Lin 5 , and Wu-Chung Shen 5

1 Department of Automatic Control Engineering, Feng Chia University, Taichung, Taiwan, 2 Ph.D. Program of Electrical and Communications Engineering, Feng China University, Taichung, Taiwan, 3 Graduate Institute of Oncology, National Taiwan University, Taipei, Taiwan, 4 Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, 5 Department of Radiology, China Medical University Hospital, Taichung, Taiwan

The long scan time in cine PCMRI is due to high temporal and high spatial resolution. It can accelerate scan time using keyhole technique, but also make blurred image in phase encoding direction. Although the blurred image can be modified and looks like a high resolution image, the retrieved intensity value in phase image may be different with original value. In this study, simulations on the numerical phantom and reducing the number of central k-space line from a real cine PCMRI with high temporal and spatial resolution were used to evaluate the phase cross-contamination by keyhole scan.

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