Abstract
The objective of this study is to assess the clinical role of computed tomography angiography (CTA) in determining the etiology of aneurysmal subarachnoid hemorrhage (ASAH) and selecting the treatment options. A total of 452 patients with ASAH underwent a 64-slice CTA examination to determine the etiology and select the treatment strategies. Digital subtraction angiography (DSA) or clipping operation confirmed the detection from the CTA. The CTA results of 452 patients with ASAH were confirmed through the DSA or clipping operation and the CTA results of 451 cases were consistent with what were seen during the DSA or clipping operation. The treatment choices for 451 patients (99.8 %) were based on the CTA results. A total of 90 cases (19.9 %) underwent endovascular embolization and 362 cases (80.1 %) underwent clipping operation. The other one patient underwent endovascular embolization after the DSA examination due to insufficient information from the CTA. Also, there was one patient who was misdiagnosed in the CTA. In conclusion, a 64-slice CTA can accurately detect intracranial aneurysms and is helpful in choosing the best treatment option.
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