肺癌的CT扫描及诊断

ROLE OF CT IN LUNG CANCER DIAGNOSIS

本文对25例肺癌患者的CT和X线平片表现进行比较分析,结果表明:扫描方法在CT检查中非常重要;CT对观察肿瘤轮廓、边缘、内部结构、纵隔肺门淋巴结转移、心脏大血管以及胸壁侵犯方面明显较一般平片优越.具有分叶和棘状突起的孤立肿块,且其CT值在100Hu以下,为周围型肺癌较可靠的征象.对于中央型肺癌,CT扫描除能显示支气管腔内病变外,还可同时了解腔外情况.另外,本文对肺小细胞癌的CT表现亦作了初步探讨.

Twenty-five patients with pulmonary malignancies were evaluated by computerized tomography(CT) and plain films. The results fully showed the importance of scanning in CT exmination which was a lot superior to plain films in identifying the border, and the density of the lesions, the adenopathy in the pulmonary hilum and mediastinum, the extent of invasion into the mediastinal structures and the chest wall. Lobulated or spiculated solitary nodules with a CT value of <100Hu were confirmative evidence of the peripheral type of pulmonary cancer. In the case of the central type of pulmonary cancer, CT scanning could visualize both the endobronchial and extrabronchial parts of the lesion simultaneously. In addition, the findings of small-cell bronchogenic carcinoma were reviewed as well.