多层螺旋CT双斜位MPR对骨半规管的全程显示研究

目的:利用多层螺旋CT各向同性扫描进行双斜位多平面重组(multiplanarreformation,MPR)后处理,重建出各半规管全貌。方法:搜集观察对象105例(男52,女53),210耳,年龄范围为9个月至71岁,利用多层螺旋CT各向同性扫描对颞骨进行检查,然后对所得图像进行双斜位多平面重组(multiplanarreformation,MPR)后处理,重建出各半规管全貌。结果:通过双斜位多平面重组(MPR)后骨半规管和外骨半规管均能在一个平面上显示其全貌,部分前骨半规管(105例中6例,5.7%)未能显示全貌。结论:多层螺旋CT各向同性扫描后双斜位多平面重组(MPR)后处理能够很好的显示各骨半规管的全貌。

Study of demonstrating the panorama of bony semicircular canals using double oblique MPR in multi-slice CT

Objective :To demonstratingthe panorama of the three bony semicircular canals with multi-slice CTisotropic scanning byusing double oblique multi-planar reformation (MPR) .Methods :105 cases (52 men,53 women) ,210 ears were collected.Age range 9months to 71 years .Examiningthe temporal bone with multi-slice CTisotropic scanning and post-processingthe source images by usingdouble oblique MPR.Then demonstrate the panorama of bony semicircular canals .Results :The panorama of lateral and posterior bonysemicircular canals can be demonstratedin one plane . Afewupper bony semicircular canals can not be demonstratedin one plane (6 of105 ,5.7 %) .Conclusion :The approach with multi-slice CTisotropic scanning and double oblique MPR post-processing can showthepanorama of the three bony semicircular canals well .