CT三维重建技术在先天性上斜肌麻痹形态检测中的应用

Application of three-dimensional CT reconstruction technology in morphologic observation of congenital superior oblique palsy

目的探索CT三维重建技术在先天性上斜肌麻痹形态检测中的应用。方法我们对27例临床诊断为单眼先天性上斜肌麻痹的患者进行了眼眶CT扫描。用MIMICS10.01软件对原始CT扫描数据进行三维重建,建立基于个体CT扫描数据的上斜肌虚拟模型,以此观察双眼上斜肌的形态。采用自身对照,比较麻痹眼和健眼的上斜肌体积差异,设定P<0.01为差异有显著性意义。结果 27例患者的上斜肌三维重建模型都显示,麻痹眼的上斜肌与健眼的上斜肌相比肌肉明显纤细。上斜肌体积的测量:麻痹眼上斜肌肌腹体积为(26.45±10.78)mm3,健眼上斜肌肌腹体积为(60.51±17.76)mm3,两者间的差异有统计学意义(P<0.01)。结论基于CT扫描数据的上斜肌三维重建技术可以用于观察上斜肌的形态。

Objective To study the application of three-dimensional CT reconstruction technology in morphologic observation of congenital superior oblique palsy. Methods This self control study included 27 cases diagnosed with monocular congenital superior oblique palsy for 3-dimensional CT. The images of the superior oblique were reconstructed by Mimics 10. 01 software.The volume of superior oblique muscle of paralyzed eye with non-paralyzed one was compared.P ＆lt; 0. 01 was chosen as the significant level. Results The reconstructed results of 3-dimensional CT scan in 27 cases showed that the volume of the oblique abdominal muscle crosssectional area of the paralyzed eye was significantly lower than that of the non-paralyzed eye. The volume of the paralyzed eye was（ 26. 45 ± 10. 78） mm3 and the non-paralyzed eye was（ 60. 51 ±17. 76） mm3,there was statistical difference（ P ＆lt; 0. 01）. Conclusion The three-dimensional CT reconstruction technique can be used for preoperative evaluation of superior oblique muscle morphology.