Clinical application of CTA coupled with whole brain CT perfused blood flow after onset of aneurismal subarachnoid hemorrhage
LI Xiang1, LI Chun-zhi2, LI Song-bai1, BEI Gui-guang1, JIANG Bao-guo1, XU Ke1
1. Department of Radiology, the First Affiliated Hospital of China Medical University, Shenyang 110001, China;2. Department of Radiology, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing 100091, China
Abstract：Objective: To investigate the clinical application of CTA coupled with whole brain CT perfused blood flow after onset of aneurismal subarachnoid hemorrhage(SAH). Methods: Perfused blood volume(PBV) values were confirmed in 29 patients with SAH by dual source computed tomography. CTA maps and PBV maps were reconstructed. In the meantime we detectd the aneurysm, we evaluated the change of vasospasm and the cause of cerebral ischemia by the perfusion characteristics. Results: Twenty-eight aneurysms in 27 patients were detected. PBV value in the frontal, temporal, parietal, occipital lobe and cerebellum is 11.17±3.13; 10.92±2.91; 11.08±2.53; 9.88±3.01; 19.83±5.12 respectively in the SAH group, and 17.10±3.60; 15.98±5.03; 15.84±3.53; 16.14±1.86; 23.54±4.64 respectively in the control group. Significant difference was showed in the frontal, parietal and occipital lobes of the brain(P<0.05), but the PBV values had no significant difference in the survival group and the death group. It showed no significant difference of hypoperfusion between bleeding dominant hemisphere and the other one. Conclusions: The cause of the SAH could be detected and the cerebral ischemia due to vasospasm could be showed simultaneously by CTA coupled with whole brain CT PBV.
2011, Vol. 22 
