纵隔型肺癌X线、CT及MRI的表现及诊断灵敏度比较  

Comparison of the image manifestation and sensitivity of X ray,CT and MRI in pulmonary cancer of mediastinal type

作　　者：刘广红[1] 

机构地区：[1]漯河医学高等专科学校第三附属医院影像科,河南省漯河462000

出　　处：《中国基层医药》2013年第13期1977-1979,共3页Chinese Journal of Primary Medicine and Pharmacy

摘　　要：目的探讨纵隔型肺癌x线、CT及MRI的表现及诊断灵敏度。方法回顾性分析经手术确诊的31例纵隔型肺癌患者的临床资料，31例均行胸部正侧位x线和CT平扫，其中7例行增强CT扫描，21例行MRI平扫，其中3例增强扫描。分析纵隔型肺癌MRI、X线及CT影像学表现特征及诊断灵敏性。结果31例患者手术证实中央型肺癌18例，周围型肺癌13例。纵隔型肺癌胸部x片的共同表现为纵隔明显增宽，气管受压移位变形；CT显示肿块边缘不规则，外缘呈分叶、毛刺状，纵隔淋巴结肿大，伴有阻塞性肺炎和肺不张；MRI的影像学特征除了CT表现外则可较准确显示肿块侵及胸膜、胸壁和胸椎。x线临床诊断诊断灵敏度为88％，MRI为100％，CT为100％；MRI和cT的诊断灵敏度明显高于x线（X2=12．251，P〈0．05）。结论纵隔型肺癌临床诊断极易出现误诊，将临床症状与影像学表现结合可增加临床诊断的准确性。Objective To explore the image manifestation and sensitivity of X ray, CT and MRI in puhnonary cancer of mediastinal type. Methods The clinical data of 31 patients with pulmonmy cancer of mediastinal type were retrospectively analyzed. All 31 patients underwent X ray and plain CT scan, and 7 cases of them also underwent en- hanced CT scan. 21 patients underwent plain MRI and 3 of them also underwent enhanced MRI scan. The image mani- festation 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 （ff 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 in＇egular. 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.

关 键 词：肺肿瘤 磁共振成像 体层摄影术 X线计算机 放射摄影术 

分 类 号：R734.2[医药卫生—肿瘤]