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Abstract #2250

Cerebral Blood Flow Change in One Hear Beat by CO2 Concentration Using Retrospective PC MRI Measurements

Yi-Jui Liu1,2, Chun-Jung Juan3, Teng-Yi Huang4, Hsiao-Wen Chung5, Cheng-Yu Chen3

1Department of Automatic Control, Feng Chia University, Taichung, Taiwan; 2Master's Program in Biomedical Informatics and Biomedical Engineering, Feng Chia University, Taichung, Taiwan; 3Department of Radiology, Tri-Service General Hospital and National Defense Medical Center, Taipei, Taiwan; 4Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan; 5Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan

The purpose of this study was to evaluate the cerebral blood change in one cardiac cycle in different concentration of carbon dioxide inhalation. Using retrospectively gated 2D phase contrast MRI is suitable method for measuring the velocity of cerebral arteries and veins during one hear beat. It is noninvasive modality to quantify the blood flow and blood volume in one heart cycle with high spatial and temporal resolution. By this MR method, we proceeded the experiment that observe the blood flow change during the CO2 concentration change.