Comparison of the image manifestation and sensitivity of X ray, CT and MRI in pulmonary cancer of mediastinal type / 中国基层医药

ABSTRACT

Objective To explore the image manifestation and sensitivity of X ray,CT and MRI in pulmonary cancer of mediastinal type.Methods The clinical data of 31 patients with pulmonary cancer of mediastinal type were retrospectively analyzed.All 31 patients underwent X ray and plaiu CT scan,and 7 cases of them also underwent enhanced CT scan.21 patients underwent plain MRI and 3 of them also underwent enhanced MRI scan.The image manifestation and sensitivity of X ray,CT and MRI were analyzed.Results In 31 cases,there were 18 cases of central type lung cancer and 13 cases of peripheral lung cancer which confirmed by operation.The common manifestation of X ray in central type and peripheral lung cancer showed that mediastinal became wider and the trachea was pushed.In CT manifestation,the margin of tumor was irregular.Tumors demonstrated sublobe,sentus and lymphadenectasis of mediastinal lymph node.Some patients accompanied by obstructive pneumonia and atelectasis.MRI could accurately display tumor invading in the chest wall,pleura and thoracic goiter beside CT image manifestation.The clinical diagnostic sensitivity of X ray,MRI and CT were 88％,100％ and 100％ respectively.The sensitivity of CT and MRI were significantly higher than that X ray (x2 =12.251,P ＜ 0.05).Conclusion The pulmonary cancer of mediastinal type is easily misdiagnosed.The clinical diagnosis accuracy can enhance by clinical symptoms combined with image manifestation of X ray,CT and MRI.