近年来,随着ＣＴ的广泛应用,人们逐渐认识到肺部病变的ＣＴ检查已是不可忽视的手段,但普通ＣＴ扫描仍不能满足诊断的需要,它对反映病变组织界面较差,内部更细微的结构不够清楚。ＨＲＣＴ技术能够显示病变内的细微结构及界面情况,从而大大提高了正确诊断率。因此,在普通ＣＴ扫描 In recent years, with the wide application of CT, people gradually come to realize that the CT examination of lung lesions is an inevitable means, but the general CT scan still can not meet the needs of the diagnosis, it reflects the lesion tissue interface is poor, the internal more subtle The structure is not clear enough. HRCT technology can display the fine structure and interface within the lesion, thus greatly improving the correct diagnosis rate. Therefore, in a normal CT scan