经颅多普勒未发现的脑血管痉挛所致的迟发性缺血。脑灌注单光子发射计算机断层扫描的重要作用。
Delayed ischemia due to cerebral vasospasm occult to transcranial Doppler. An important role for cerebral perfusion SPECT.
作者信息
Lewis D H, Newell D W, Winn H R
机构信息
Department of Radiology, Harborview Medical Center, University of Washington School of Medicine, Seattle, USA.
出版信息
Clin Nucl Med. 1997 Apr;22(4):238-40. doi: 10.1097/00003072-199704000-00006.
Cerebral vasospasm after subarachnoid hemorrhage is very common, but it is not universally detectable by transcranial Doppler. SPECT imaging of regional cerebral blood flow with Tc-99m exametazime serves as a complementary test to transcranial Doppler in the evaluation of patients at high risk for vasospasm. The significance of vasospasm, which may be underestimated by TCD, is readily identified with SPECT cerebral perfusion imaging.
蛛网膜下腔出血后脑血管痉挛很常见，但经颅多普勒并非总能检测到。用锝-99m依沙美肟进行的局部脑血流单光子发射计算机断层扫描成像，在评估有血管痉挛高风险的患者时，可作为经颅多普勒的补充检查。血管痉挛的重要性可能被经颅多普勒低估，但通过单光子发射计算机断层扫描脑灌注成像很容易识别。
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