胰 AA 图3-3胰腺厚度CT测量选点标准 图3-4正常胰CT前后径测量 (localization mark of measured panereas thickness) (localization of measured pancreas A-P diameterior) 1.胰头2.胰体3.胰尾.主动脉 A.胰头B.胰须C.胰体D.胰尼.椎体横径 c.下腔静脉d.十二指肠V=椎体 PEKING UNION HEDICAL COLLEGE HOSPITAL