基于MRI与CT骨盆三维重建与测量的对比研究

发布时间：2018-06-19 15:21

本文选题：三维重建 + 女性　；参考：《实用妇产科杂志》2015年06期

【摘要】：目的:对比基于MRI与CT三维骨盆重建的特点及测量研究。方法:对25例在南方医科大学南方医院志愿行盆腔CT及MRI检查的发育正常、无病理性骨盆女性,应用Mimics软件分别构建出骨盆三维模型,测量三维骨盆模型的各径线、角度值并进行分析。结果:1基于MRI与CT数据集的三维骨盆模型,解剖结构清晰、形态逼真、表面光滑。2CT、MRI三维骨盆测量的入口后矢状径、入口前后径、中骨盆横径、中骨盆后矢状径、出口后矢状径、骶骨长度,差异有统计学意义(t=3.132、-4.021、-4.048、-3.468、-2.956、5.203,P0.01),但CT与MRI三维骨盆测量差值平均值的绝对值为4 mm;入口横径、骶耻内径、中骨盆前后径、出口横径、出口前后径、耻骨联合高度、骶骨弯度,差异无统计学意义(t=-1.126、0.947、0.796、-1.916、0.192、2.172、-2.484,P0.05)。3MRI与CT三维骨盆测量具有较好的一致性,骨盆入口横径、入口后矢状径、入口前后径、骶耻内径、中骨盆横径、中骨盆后矢状径、中骨盆前后径、骨盆出口横径、骨盆出口后矢状径、出口前后径、耻骨联合高度、骶骨长度、骶骨弯度的95%一致性界限分别为(-5.1,4.1)mm、(-2.9,5.6)mm、(-5.4,2.3)mm、(-5.9,2.8)mm、(-6.6,4.5)mm、(-6.2,3.3)mm、(-6.1,2.5)mm、(-3.6,4.4)mm、(-4.2,4.9)mm、(-5.2,5.4)mm、(-3.1,4.8)mm、(-1.8,6.2)mm和(-6.5,3.9)mm。结论:1基于MRI与CT数据集均可构建出清晰逼真的三维骨盆。2MRI与CT三维骨盆测量值比较具有较好一致性,虽有6条径线值存在统计学差异,但平均值的绝对值小于5 mm,无临床意义。MRI三维骨盆测量可应用于临床。
[Abstract]:Objective: to compare the characteristics and measurement of three-dimensional pelvic reconstruction based on MRI and CT. Methods: a total of 25 normal and non-pathological pelvic women who were performed CT and MRI examinations in Nanfang Hospital of Southern Medical University were studied. Three dimensional models of pelvis were constructed by Mimics software, and the diameters of the models were measured. Angle value and analysis. Results the three-dimensional pelvic model based on MRI and CT data sets showed a clear anatomical structure and realistic morphology. The surface of the pelvis was smooth and smooth. The posterior sagittal diameter, the anterior and posterior diameter of the entrance, the transverse diameter of the middle pelvis, the posterior sagittal diameter of the middle pelvis and the posterior sagittal diameter of the outlet were measured by MRI. The difference of sacral length was statistically significant (P 0.01), but the absolute value of the difference between CT and MRI was 4 mm, the transverse diameter of the entrance, the inner diameter of the sacral shame, the anteroposterior diameter of the middle pelvis, the transverse diameter of the outlet, the anteroposterior diameter of the outlet, the height of pubic symphysis, the curvature of the sacrum. There was no statistically significant difference between MRI and CT measurements of the pelvis, such as transverse diameter of pelvis, posterior sagittal diameter of entrance, anteroposterior diameter of entrance, inner diameter of sacral shame, transverse diameter of middle pelvis, posterior sagittal diameter of middle pelvis, middle posterior sagittal diameter of pelvis and CT measurement of three-dimensional pelvis. The horizontal diameter of pelvis outlet, posterior sagittal diameter of pelvis outlet, anteroposterior diameter of outlet, height of pubic symphysis, height of sacrum, sacral length and sacral curvature of 95% consistency limits are: -5.1l 4.1mm ~ (-1) -2.95.6m ~ (-2.95.6) mm ~ (-1) ~ (-5.92.8mm) ~ (-6.62.8mm) -6.62.8mm -6.62.5mm ~ 6.12.5 mm ~ (-1) ~ 3.64.4mm ~ (-4.24) mm ~ + -5.25.4mm ~ (5) ~ _ _ _ ~ _ _ _ Conclusion both MRI and CT data sets can be used to construct clear and realistic three-dimensional pelvis. 2 MRI is consistent with CT three-dimensional pelvic measurements, although there are statistical differences in the values of 6 lines. But the absolute value of the mean value is less than 5 mm, there is no clinical significance. MRI three-dimensional pelvic measurement can be used in clinic.
【作者单位】：南方医科大学南方医院;南方医科大学人体解剖与组织胚胎教研室;
【基金】：国家自然科学基金(编号:81370736);国家自然科学基金重大项目(编号:6119012061190122) 广东省自然科学基金(编号:2011010003830)
【分类号】：R711

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