320排动态容积CT诊断颈内动脉颅内段动脉瘤的价值

Diagnostic value of 320-detector row CT in patients with intracranial internal carotid artery aneurysms

目的:评价320排动态容积CT在颈内动脉颅内段动脉瘤诊断中的价值。方法:2010年4月～2010年11月间经320排动态容积CT检出颈内动脉颅内段动脉瘤48例,回顾性分析其临床资料,评价CTA图像质量及动脉瘤特征,并与DSA结果对照。结果:320排动态容积CT脑血管成像动脉瘤显示优良率为94%。48例患者共检出颈内动脉颅内段动脉瘤53个,其中单发31例,多发17例;囊状动脉瘤45例,梭形动脉瘤3例。囊状动脉瘤中,最大径<5mm的小动脉瘤有44个,发生在交通段数目最多,为25个。结论:320排动态容积CT能够准确发现和评价颈内动脉颅内段动脉瘤,特别在颈内动脉颅内段动脉瘤的筛查中具有重要价值。

Objective：To evaluate the diagnostic value of 320-detector row CT in patients with intracranial internal carotid artery aneurysms. Methods：48 patients were diagnosed with of intracranial internal carotid artery aneurysms by 320-detector row CT angiography. The image of 48 patients were retrospectively analyzed combined with patient history and the results of digital subtraction angiography （I）SA）. Image quality of CT angiography and position of aneurysms, number, and maximal dimension were recorded. Results：Fineness rate of 320-detector CTA image of intracranial internal carotid artery aneurysms was 94%. A total of 53 aneurysms were detected by 320-detector row CT angiography in 48 patients. Among them, 31 patients had single aneurysm, 17 patients had several aneurysms, 45 were saccular aneurysm, and 3 were fusiform aneury. In saccular aneurysms, the number of microaneurysm （〈5 mm） was 44, and location in posterior communicating artery section was 25. Conclusion： 320-detector row CT angiography can exactly discover and evaluate intracranial internal carotid artery aneurysms, especially have high value in screening intracranial internal carotid artery aneurysms.