The Value of Radiographic and Computed Tomography in the Staging of Lung Carcinoma

摘要: Abstract A prospective double-blind study was undertaken to compare computed tomography (CT) and conventional radiographic (RT) in the staging of lung carcinoma. Seventy-five patients had CT RT mediastinum hilum prior operation. The presence or absence metastasis lymph nodes documented at time operation standard applied studies. correctly predicted mediastinal lymphadenopathy most cases (sensitivity 91%, specificity 94%), while less helpful 61%, 86%). Metastatic those with false negative studies averaged only 0.8 cm diameter, probably accounting for findings. Both poor predictive values detecting hilar 73% 47%, 87% 72%, respectively). value evaluation equaled that mediastinoscopy mediastinotomy. When demonstrates no lymphadenopathy, invasive can be deferred definitive thoracotomy. Since positive were seen both scans (4% 8%, respectively), will still necessary