肺内孤立结节CT纵隔窗、肺窗与病理对照研究

Pulmonary Solitary Nodule─A Correlative Study of Mediastinal Window and Pulmonary Window in CT and Pathology

对４０例经手术切除的肺内孤立性结节在ＣＴ纵隔窗、肺窗及病理大体标本上的最大径进行了对照研究（其中肺癌２５例，良性结节１５例）。结果认为，在ＣＴ片结节大小的测量中，纵隔窗更为准确。在良恶性结节鉴别中，肺窗与纵隔窗相差≥０．５ｃｍ，恶性可能性大，肺窗与纵隔窗相差≤０．２ｃｍ，良性可能性大。

A correlative study of length of nodule in mediastinal window and pulmonary window and pathology was done on 40 cases with pulmonary solitary nodule by surgical removal including lung cancer 25 cases and benign lesion 15 cases. Result showed that mediastinal window of CT was more accuracy on measure of nodule. With two different window′s deviation of≥0.5cm,the possibility of malignant tumors was greater. Wheras with two different window′s deviation of≤0.2cm,most-likely it was benign tumor.