Abstract #2107

Altered Resting Cerebral Blood Flow in Adults Following Low-Frequency Electronic Acupuncture as Revealed by Perfusion Functional MRI

Ying Hao¹, Yin Jiang², Yue Zhang³, Cailian Cui⁴, Xiaoying Wang^1,5, Jue Zhang^1,3, Jing Fang^1,3

¹Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China, People's Republic of; ²Neuroscience Research Institute, Peking University , Beijing, China, People's Republic of; ³College of Engineering, Peking University, Beijing, China, People's Republic of; ⁴Neuroscience Research Institute, Peking University, Beijing, China, People's Republic of; ⁵Dept. of Radiology, Peking University First Hospital, Beijing, China, People's Republic of

This study determined the effect of a relatively long period (30min) of low-frequency electroacupuncture stimulation (EAS) on resting-state CBF utilizing arterial spin labeling (ASL) technique. We observed that blood flow significantly decreased within the ipsilateral IPL and dACC, as well as the contralateral IPFC and postcentral gyrus. The observation that the acupuncture did not significantly increase CBF within any brain region is contrary to previous reports using block-designed acupuncture assessed by functional MRI.