Title: Clinical Value of 16-slice Spiral CT Angiography in Diagnosis and Endovascular Therapy of Intracranial Aneurysms
Abstract: Objective To assess the accuracy of 16-slice spiral CT angiography (CTA) in diagnosis of intracranial aneurysms, and determine whether 16-slice CTA provides sufficient diagnostic information to guide endovascular therapy of aneurysms.Methods 329 patients were included in this study and successively underwent CTA and DSA examination for suspected intracranial aneurysms. The shape, size and locations of the aneurysms, and the relationship of aneurysms to adjacent branch vessels were evaluated with maximum intensity projections and volume rendering techniques. The patients were treated with endovascular or surgical procedure according to the CTA data.Results 202 intracranial aneurysms were identified in 181 of the 329 patients. Four aneurysms were missed by CTA, and seven aneurysms were not clearly depicted by DSA. The sensitivity, specificity, and accuracy of 16-slice CTA in detecting aneurysms were 98%, 98% and 98%, respectively. There was no statistically significant difference in accuracy between CTA and DSA. 115 aneurysms were suitable for endovascular coiling treatment according to the CTA and 112 were successfully treated. Conclusion 16-slice CTA offers high diagnostic accuracy in the detection of intracranial aneurysms,and it can guide the endovascular therapy of aneurysms.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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