Abstract #1767

Sequential Change in Myocardial Perfusion in Ischemic Heart Disease Post Percutaneous Coronary Intervention: A Longitudinal Study Using First-Pass Contrast-Enhanced MRI

Wan-Chen Shen¹, Mao-Yuan Marine Su², C-C Wu³, Y-W Wu³, W-C Chu², Wen-Yih Isaac Tseng⁴

¹National Taiwan University College of Medicine, Taipei, Taiwan; ²Institute of Biomedical Engineering, National Yang-Ming University, Taipei, Taiwan; ³Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan; ⁴Center for Optoelectronic Biomedicine, National Taiwan University College of Medicine, Taipei, Taiwan

In this study, we perfored first-pass contrast-enhanced (FPCE) myocardial perfusion in a serial follow-up to determine the timing, magnitude and transmural difference of myocardial perfusion recovery by evaluating the change in stress perfusion, rest perfusion, and myocardial perfusion reserve (MPR).We have demonstrated that the myocardial perfusion in the ischemic regions can be restored as early as 24 hours after PCI, and perfusion in the inner wall of the myocardium improves more significantly than that in the outer wall.