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首页> 外文期刊>Journal of clinical neuroscience: official journal of the Neurosurgical Society of Australasia >Can CT angiography rule out aneurysmal subarachnoid haemorrhage in CT scan-negative subarachnoid haemorrhage patients?
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Can CT angiography rule out aneurysmal subarachnoid haemorrhage in CT scan-negative subarachnoid haemorrhage patients?

机译：CT扫描阴性的蛛网膜下腔出血患者可以通过CT血管造影排除动脉瘤性蛛网膜下腔出血吗？

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摘要

Current management guidelines for CT scan-negative subarachnoid haemorrhage (SAH) patients recommend cerebral digital subtraction angiography (DSA). We aimed to investigate the utility of CT angiography (CTA) as a substitute for DSA in these patients. We included patients who presented with SAH confirmed by spectrophotometric xanthochromia analysis of cerebrospinal fluid (CSF) whereby the CT scan was negative. Electronic records were reviewed to collect data on non-contrast CT scan, CTA and DSA results. Patients without DSA or with other explanations for CSF xanthochromia were excluded. Sixty-three patients with CT scan-negative SAH were included. The diagnosis of SAH was confirmed by CSF analysis. All 63 patients underwent both DSA and CTA. Using DSA as the benchmark, CTA demonstrated a negative predictive value, positive predictive value, sensitivity and specificity of 98%, 82%, 90% and 96%, respectively, for the detection of intracranial aneurysms. CTA correctly identified patients in whom there were no underlying aneurysms responsible for SAH, with one patient with suspected dissection referred for further evaluation using MRI and DSA.
机译：当前CT扫描阴性蛛网膜下腔出血（SAH）患者的管理指南建议进行脑数字减影血管造影（DSA）。我们旨在研究在这些患者中CT血管造影（CTA）替代DSA的实用性。我们纳入了通过脑脊液分光光度法黄体分析确诊为SAH的患者，其中CT扫描阴性。审查电子记录以收集有关非对比CT扫描，CTA和DSA结果的数据。排除没有DSA或对CSF黄褐变有其他解释的患者。 CT扫描阴性的SAH患者63例。通过CSF分析证实了SAH的诊断。所有63例患者均接受DSA和CTA检查。以DSA为基准，CTA对颅内动脉瘤的检测显示阴性预测值，阳性预测值，敏感性和特异性分别为98％，82％，90％和96％。 CTA正确识别出没有潜在动脉瘤引起SAH的患者，其中一名疑似解剖的患者转诊接受MRI和DSA进一步评估。

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