摘要
目的：探讨CT灌注成像评估蛛网膜下腔出血后脑血流动力学变化的价值。方法：实验组21例蛛网膜下腔出血（包括延迟发生脑梗死3例）和7例对照组病人进行CT灌注成像，比较各脑叶CT灌注参数值的差异。结果：实验组中有10例病人在灌注图上发现肉眼可见的低灌注区，CT平扫未见低密度改变。CBF值在实验组中发生延迟脑梗塞组为21.35±3.42，不发生组为23.37±2.29，对照组为26.59±2.47，实验组与对照组之间有显著性差异；TTS值延迟脑梗塞组为32.26±12.08，无延迟脑梗塞组为19.14±4.88，两者之间具有显著性差异，其余灌注参数在各组之间未见显著性差异。结论：CT灌注成像能够反映蛛网膜下腔出血后的脑血流动力学变化。
Abstract
Objective: To discuss the value and the effect of CT perfusion imaging on the cerebral hemodynamic changes after subarachnoid hemorrhage. Methods: CT perfusion imaging was employed in 21 cases of subarachnoid hemorrhage(including 3 delayed cerebral infarction) as the experimental group and 7 patients as the control group to compare the difference of lobar CT perfusion parameters; comparing the CT perfusion photo and plain scan in the diagnosis of cerebral ischemia in the test group. Results: In the experimental group, CBF value was 21.35±3.42 with the occurrence of delayed cerebral infarction and 23.37±2.29 in the group without infarction while it was 26.59±2.47 in the control group, what was more, there was a significant difference between the two groups. Besides, as to the TTS value, it was 32.26±12.08 in the occurring of delayed cerebral infarction group and the value was 19.14±4.88 in the non-ischemic group and they had the obvious statistical difference, but no significant difference was showed in other perfusion parameters. Low perfusion area visible to the naked eye was detected on the perfusion photo of 10 patients in the study group, but low density changes were not found by CT plain scan. Conclusion: CT perfusion imaging is effective in assessing cerebral hemodynamics after subarachnoid hemorrhage.
关键词
蛛网膜下腔出血 /
血管痉挛 /
颅内 /
体层摄影术 /
X线计算机
Key words
Subarachnoid hemorrhage /
Vasospasm /
intracranial /
Tomography /
X-ray computed
李 响;李松柏;李春志;卑贵光;蒋宝国.
蛛网膜下腔出血的CT灌注成像研究[J]. 中国临床医学影像杂志. 2010, 21(3): 157-159
LI Xiang;LI Song-bai;LI Chun-zhi;BEI Gui-guang;JIANG Bao-guo.
The research of CT perfusion after subarachnoid hemorrhage[J]. Journal of China Clinic Medical Imaging. 2010, 21(3): 157-159
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