Abstract #2250

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

Yi-Jui Liu^1,2, 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.