多层螺旋CT颞骨三维成像与解剖学的对照研究

为了验证多层螺旋CT三难成像的测量数据的准确性，选取10％甲醛固定的成人头颅标本12具（24侧），进行颞骨部位的扫描，并应用表面遮盖显示，容积显示技术对颞骨的三维成像，对几处明显的结构进行测量，然后，再解剖测量，对比，结果显示，多层螺旋CT立体图像清晰，各种表面结构清楚，多层螺旋CT成像的测量数据与解剖测量的数据一致，无统计学的差异，研究表明，多层螺旋CT成像测量的数据，可以直接指导临床。

THE 3D RECONSTRUCTION OF TEMPORAL BONE BY MULTI-SLICE HELICAL CT AND COMPARED WITH ANATO-MAL MEASUREMENT

In order to verify the dependability of 3D data, twenty-four temporal bones of adult head specimen fixed with formaldehyde were scanned by multi-slice helical CT. The technique of shade surface display and volume rendering were used in reconstruction. The 3D data of the surface structure of temporal bone were compared with anatomical specimens. The result showed that the new type CT has more rapid speed in 3D reconstruction and clearer imaging. The technique of shade surface display and volume rendering can give very clear structure of temporal bone. The 3D data makes no difference with anatomical measurement (no statistic difference). It is suggested that the 3d data can instruct the clinic directly.