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目的初步探讨320排CT血管成像(CTA)对识别筛前动脉的走行及其与邻近结构关系的价值,为功能性内窥镜鼻窦手术(FESS)提供术前参考。方法回顾性分析32例临床怀疑脑血管疾病患者影像资料,所有病例均先后行320排CTA成像及选择性颈内动脉血管造影术[单侧加数字减影血管造影(DSA)3D-Innova数据采集],利用原始数据重建出筛前动脉CTA及DSA图像。计算DSA对筛前动脉的显示率,分析CTA对筛前动脉及骨性解剖标记(包括筛前动脉眶口、筛前动脉管及筛前动脉颅口)的显示情况。结果 DSA及320排CTA对筛前动脉的显示率分别为100%(32/32)及89.06%(57/64)。骨性标记在MPR上的显示率分别为:眶口100%(64/64)、筛前动脉管43.75%(28/64)、颅口100%(64/64)。结论 320排CTA能够较好地显示筛前动脉及邻近骨性结构,基本可以代替有创性DSA检查对筛前动脉进行术前评价。
Objective To investigate the value of 320-slice CT angiography (CTA) in identifying the anterograde artery and its relationship with adjacent structures, so as to provide preoperative reference for functional endoscopic sinus surgery (FESS). Methods We retrospectively analyzed the imaging data of 32 patients with suspected clinical cerebrovascular disease. All patients underwent 320-row CTA imaging and selective internal carotid artery angiography (DSA) 3D-Innova data acquisition ], Using the original data to reconstruct the anterior ethmoidal CTA and DSA images. The display rate of DSA on the anterior ethmoid artery was calculated. The display of CTA on the anterior ethmoid artery and bony anatomical markers (including the anterior ethmoidal orbital orifice, anterior ethmoidal artery and anterior ethmoidal artery) was analyzed. Results DSA and 320 CTA showed 100% (32/32) and 89.06% (57/64) of the anterior mesh arteries, respectively. Bone markers in the MPR were 100% (64/64) orbital orifice, ductal 43.75% (28/64), cranial 100% (64/64). Conclusion 320 rows of CTA can better display the anterior ethmoid artery and its adjacent bony structures, and can basically replace the invasive DSA examination for pre-anterior ethmoidal artery evaluation.