螺旋CT血管造影及最大信号强度投影重建技术在颅内动脉瘤诊断中的应用价值  

Detection and Assessment of Intracranial Aneurysms: Value of Spiral CT Angiography with MIP Display

作　　者：凌华威[1] 潘自来[1] 陈憩[1] 张仲伟[1] 施卫平[1] 吴振芳[1] 江浩[1] 何国祥[1] 

机构地区：[1]上海第二医科大学附属瑞金医院放射科

出　　处：《中国医学影像技术》1999年第5期325-327,共3页Chinese Journal of Medical Imaging Technology

摘　　要：目的在于探讨ＣＴ血管造影及最大信号强度投影重建技术检查颅内动脉瘤的准确性以及ＳＣＴＡ取代常规血管造影的可能性。方法２５例临床疑诊颅内动脉瘤的病人中２３例接受了ＳＣＴＡ和常规血管造影。２例单独经ＳＣＴＡ诊断后直接手术治疗。结果２５例动脉瘤中，ＳＣＴＡ准确检出了２３例另２例小于３ｍｍ的动脉瘤未被ＳＣＴＡ检查发现。与传统血管造影相对照，ＳＣＴＡ的诊断准确率为９２％。对于检测血栓性动脉瘤ＳＣＴＡ优于传统血管造影。结论本组研究表明ＳＣＴＡ结合ＭＩＰ图像重建技术能较准确地诊断３ｍｍ以上的颅内动脉瘤，并判断其大小，形态，瘤颈以及瘤内血栓的存在。Objective To evaluate the efficacy of spiral CT angiography with maximum intensity projection display in detection and assessment of intracranial aneurysms.Methods 23 of 25 intracranial aneurysms were studied with both SCTA and conventional angiography; Two patients underwent SCTA as the only imaging diagnostic method before surgical intervention.Results 23 of 25 aneurysms larger than 3 mm were detected with SCTA.The other 2 aneurysms smaller than 3 mm were missed by SCTA in contrast to conventional angiography.The accuracy of SCTA in diagnosis of intracranial aneurysm was 92%. The thrombosed parts of the aneurysms were seen better by SCTA with evaluating the source images.Conclusion Spiral CT is a promising noninvasive imaging method in detecting and characterizing the intracranial aneurysms for treatment planning. [

关 键 词：动脉瘤 螺旋CT 血管造影 最大信号强度 颅内肿瘤 

分 类 号：R739.410.4[医药卫生—肿瘤] R730.44[医药卫生—临床医学]