腹主动脉瘤的2DCT及3DCT诊断

2DCT and 3DCT diagnosis of abdominal aneurysm:a reports of 16 cases

目的： 探讨２ＤＣＴ及３ＤＣＴ对腹主动脉瘤的诊断价值。材料和方法： １６ 例腹主动脉瘤， １０ 例行常规ＣＴ检查， ６ 例行螺旋ＣＴ血管造影及三维重建， 三维重建方法包括最大强度投影（ＭＩＰ）， 表面成像法（ＳＳＤ）及多平面重建（ＭＰＲ）。结果： ２ＤＣＴ及３ＤＣＴ能较好显示腹主动脉瘤的瘤体， 瘤体内结构及与周围结构关系。３ＤＣＴ能较好显示瘤体整体形态、位置、范围及腹主动脉分支血管情况。结论： 以２ＤＣＴ为基础， 辅以３ＤＣＴ技术是诊断腹主动脉瘤有效无创伤性方法。

Objective:To discuss the diagnostic value of 2DCT and 3DCT for abdominal aneurysms.Materials and Methods:Abdominal aneurysms were examined by conventional CT.Abdominal aneurysms were examined by spiral CT angiography(SCTA),MIP,SSD and MPR reconstruction were used as three-dimensional models.Results:the abdominal aneurysm and intraneurysmal architecture could be clearly showed by 2DCT and 3DCT.3DCT was superior to 2DCT in showing the whole shape,site,extent of abdominal aneurysm and main branch of abdominal arteria.Conclusion:2DCT associated with 3DCT are an effective method for the diagnosis of abdominal aneurysms.