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目的通过多层螺旋CT血管造影及数字减影血管造影两种检查方法对脑膜瘤血供进行对比评价,进一步了解两种检查方法在脑膜瘤血供方面的应用价值及优势。方法应用16层螺旋CT对20脑膜瘤患者进行CT血管造影检查,每个病例于一周后行数字减影血管造影检查,对脑膜瘤血供情况(包括瘤体供血动脉、引流静脉、静脉窦、对肿瘤周围血管走行及对颅骨的影响等方面)进行对比评价。结果 20例行MSCTA与DSA检查患者均清晰显示瘤体供血动脉、引流静脉及静脉窦,后者较前者在对细小分支的显示上略占优势;在近颅骨侧血管的显示方面DSA较MSCTA有明显优势;而在瘤体对周围血管的压迫、推移等方面MSCTA则具有三维立体的优势;窦旁脑膜瘤受侵的显示中,MSCTA可因骨质影响而高估静脉窦受侵情况的存在,DSA则不受影响;MSCTA可准确评估瘤体与骨质关系,并可为术前模拟手术入路提供三维立体影像。结论 MSCTA与DSA均能够提供准确的瘤体供血动脉、引流静脉及静脉窦等重要信息,具有较高的一致性,而在显示瘤体与周围血管、颅骨的三维关系以及无创、快捷、价格低廉等方面MSCTA更具优势。
Objective To compare and evaluate the blood supply of meningioma by multi-slice spiral CT angiography and digital subtraction angiography to further understand the application value and advantages of the two methods in meningioma blood supply. Methods CT angiography was performed on 20 patients with meningiomas by 16-slice spiral CT. Each patient underwent digital subtraction angiography one week later. The blood supply to meningiomas (including tumor feeding artery, drainage veins, sinus, On the tumor around the blood vessels and the impact on the skull, etc.) for comparative evaluation. Results Twenty of the 20 patients who underwent MSCTA and DSA showed a clear indication of the donor arteries, the drainage veins and the sinus veins. The latter showed a slight superiority in showing the small branches. In terms of the display of the proximal cranial veins, DSA was significantly Obvious advantage; while in the tumor on the peripheral vascular compression, migration and other aspects of MSCTA has the advantages of three-dimensional; invasion of the sinonasal meningioma in the show, MSCTA may be due to the influence of bone over the presence of sinus invasion , DSA is not affected; MSCTA can accurately assess the relationship between the tumor and bone, and can provide three-dimensional images for preoperative simulated surgical approach. Conclusion Both MSCTA and DSA can provide accurate information about the donor artery, drainage veins and sinus and other important information, and have high consistency. However, the three-dimensional relationship between the tumor and the surrounding blood vessels and skull and the noninvasive, quick and inexpensive MSCTA and other areas have more advantages.