上腹部CT读片指

上腹部ＣＴ读片指南CompanyLogoCT读片原则CT读片时较一般X线读片要复杂,因为CT图像是人体的横断面,同时又有扫描部位与层次问题,微小病变也有遗漏的可能,读片时亦应参考平片、MRI、US等影像检查,互补其不足,发挥各种检查方法的特长,有利于诊断。1.1扫描位置与层次的判断首先了解人体横断面解剖观察扫描图像位置是否正确,各脏器是否包括,扫描计划是否恰当。1.2窗宽与窗位是否正确扫描后进行摄片时应采取各部位标准窗宽与窗位,必要时依病变不同选取显示最佳窗宽与窗位。如不正确有可能使病变不能显示或显示不佳。平扫与增强CompanyLogo1.3读片时仔细观察首先了解是平描或增强扫描(注射碘水造影剂)1.4详细阅读图像及资料要了解机器扫描条件、病人资料、检查日期以及某某医院等等,作为诊断的参考。1.5异常影像的观察如发现异常影像时,则要对病变影像的部位、大小与数目、边缘、密度、内部结构以及与周围的关系等作详细观察。如为复查则需对病变的动态进行描述。1.6分析与判断发现异常影像,对影像作全面的分析、推理,最后作出判断。诊断的基础是首先了解正常影象解剖,并对各种疾病的病理变化有深入的了解,再结合病史、主诉,不难作出正确的判断。CompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogoCompanyLogo