Abstract #4350

4D Flow MRI assessment of cerebral blood flow before and after superficial temporal artery-middle cerebral artery bypass surgery

Mingzhu Fu¹, Chao Xia², Miaoqi Zhang¹, Yutao Ren², Shuo Chen¹, Rui Tian², Yi Liu², and Rui Li¹

¹Center for Biomedical Imaging Research, Department of Biomedical Engineering, Tsinghua University, Beijing, China, ²Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China

In this study, we utilized 4D Flow MRI to assessed and compared the change of cerebral blood flow in patients with MMD before and after STA-MCA bypass surgery. Statistics indicated that BFV_total significantly increased after bypass surgery while no differences were found in BFV_iICA, BFV_cICA and BFV_BA. This is probably because the STA-MCA bypass could directly compensate for blood flow supply and play a role in flow augmentation for the whole brain. The results of this study suggested that STA-MCA bypass could improve the cerebral blood supply without affecting the hemodynamics of other arteries, such as BA and ICA.

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