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52名正常人鼻咽部作 CT 多层面扫描,测量面部两侧体表解剖标志与脑干、上段颈髓之间距离,探讨鼻咽癌放疗时耳前照射野后界与脑干、颈髓的关系,作为选定照射野后界的参考指标,以期在放疗过程中尽可能藏少邻近脑组织受照体积。
Fifty-two normal subjects were screened by multi-slice computed tomography (CT). The distance between the surface anatomical landmarks on both sides of facial and the upper cervical cord was measured. As the reference index of the selected field after the irradiation field, with a view to hide as much as possible in the radiation therapy adjacent brain tissue volume.