Abstract:

Abstract： Objective To explore the significance of the digital three-dimensional reconstruction of presacral vessel and pelvic blood vessels based on magnetic resonance imaging. Methods Between February and May 2012，25 cases who underwent routine MRI examination for benign pelvic diseases were recruited. The ACHIEVA 3. 0TX MR was employed to perform the e? THRIVE3D voxel dynamic contrast?enhanced MRI sequence imaging. The presacral area of the vascular net was reconstructed by using the Software Minics 10.0.Results Presacral vessel three-dimensional reconstruction could clearly display the abdominal aorta, inferior vena cava, bilateral common iliac artery, external iliac and internal iliac artery and vein. The middle sacral artery was displayed in 18 cases, the middle sacral vein was displayed in 6 cases and the lateral stem vein was displayed partly. The middle sacral artery in 18 cases were all the small branches of common iliac artery. The diameter of median sacral artery was 2.3mm(1.2-3.6mm).The middle sacral vein was all opened into the left common iliac vein, and the diameter of median sacral veins was 3mm(1.7-4.6mm).Conclusions The e-THRIVE sequence of MRI used to scan pelvic blood vessel can reconstruct the three-dimensional model of pelvic blood vessel, and the display rate of the middle sacral artery is higher,and the middle sacral vein and lateral stem vein can be displayed in some cases .

Key words: digital three-dimensional reconstruction, presacral vessel, magnetic resonance imaging

摘要：

目的 探讨应用盆腔磁共振成像（MRI）原始数据重建在体女性骶前血管三维模型的方法及意义。方法 对2012年2-5月广州医科大学附属第一医院25例因盆腔良性肿瘤患者手术前行盆腔MRI检查，以e-THRIVE序列获取所有MRI原始数据，应用Minics10.0软件重建骶前血管三维图像。结果 骶前区血管三维重建均可清晰地显示腹主动脉、下腔静脉、双侧髂总、髂外及髂内动、静脉；25例患者中18例显示骶正中动脉，6例显示骶正中静脉及部分横干静脉。18例骶正中动脉均从腹主动脉分叉，平均直径为2.3(1.2～3.6) mm；6例骶正中静脉均汇入左侧髂总静脉，平均直径为3(1.7～4.6) mm。结论 利用e-THRIVE序列MRI扫描盆腔血管，可构建盆腔血管三维重建模型，且骶前区的骶正中动脉显影率高，部分病例可显影骶正中静脉及横干静脉。

关键词: 数字化三维重建, 骶前区血管, 磁共振成像