64排螺旋CT血管成像对颅内动脉瘤的诊断价值

目的探讨64排螺旋CT血管成像（64-SCTA）对颅内动脉瘤（CA）的诊断价值。方法对34例经数字减影血管造影（DSA）确诊的CA患者的64-SCTA和DSA检查的影像资料进行对照分析。评价64-SCTA诊断优势，评价指标包括动脉瘤位置、形态的显示，以及对附壁血栓、钙化、动脉瘤与周围结构的关系的显示。结果34例患者，检出动脉瘤36个。其中囊性动脉瘤34个，梭形动脉瘤2个，对于cA的位置及形态64-SCTA与DSA诊断符合率达100％。64-SCTA可显示CA附壁血栓及钙化，对CA与周围结构的关系显示良好。DSA对CA附壁血栓、钙化及CA与周围结构的关系显示均不满意。结论64-SCTA可明确诊断CA，对CA的位置、形态、附壁血栓、钙化及与周围结构的关系显示清晰，可作为CA诊断及术前评估的首选影像学方法。

Diagnostic value of 64-slice spiral CT angiography in intracranial aneurysms

Objective To explore the diagnostic value of 64-slice spiral CT angiography （64-SCTA） in intracranial aneurysms （CA）. Methods The 64-SCTA and DSA images of 34 patients with CA confirmedby digital subtraction angiography （DSA） were retrospectively analyzed. The advantages of 64-SCTA in diagnosis CA were evaluated, including location, shape, parietal thrombus, calcification, and display of relationship between CA and surrounding structures of CA. Results 36 CAs were detected in 34 patients. 34 lesions were saccnlar aneurysms, 2 fusiform aneurysms. The diagnostic coincidence rate of 64-SCTA and DSA was 100% in the location and shape of CA. 64-SCTA may display parietal thrombus, calcification, and clearly relationship between CA and surrounding structures of CA. The display of DSA in parietal thrombus, calcification, and relationship between CA and surrounding structures of CA were not satisfied. Conclusion The diagnosis of 64-SCTA in CA can be confirmed. The location, shape,parietal thrombus, calcification, and relationship between CA and surrounding structures of CA may display clearly. 64-SCTA can be used as preferred imaging method in diagnosing CA and preoperative evaluation.