Regional accuracy of computed tomography of the mediastinum in staging of XXXX .

@entity1 @entity5 @entity957 @entity2 @entity1544 @entity420
To determine the regional accuracy of computed tomography of the mediastinum in staging @entity2 , we compared the results of preoperative computed tomographic staging to pathologic findings in lymph nodes taken at mediastinoscopy and/or thoracotomy in 61 @entity1 . Twenty-two @entity1 had @entity420 , 24 had @entity957 , eight had large cell @entity5 , and seven had @entity5 or mixed cellular types. Sixteen @entity1 had Stage I, eight had Stage II, and 37 had @entity5 . Thirteen @entity1 had mediastinoscopy only, and the remaining 48 @entity1 had thoracotomy. Computed tomographic staging of the mediastinum as a whole had an accuracy of 88% with a negative predictive index of 96.1%. In examining the differential regional accuracy within the mediastinum we found results in the aortopulmonary window to be inferior to those of other regions, with an accuracy of 80% and a negative predictive index of 83.3%. The reliability of computed tomographic scan staging varied relative to cell type. The accuracy rate in @entity420 was 94.7% compared to 70.6% in @entity957 . Computed tomography is accurate for staging the mediastinum in @entity2 , and this accuracy holds over the regions of the mediastinum except the aortopulmonary window. Computed tomography is more accurate for staging @entity420 than @entity1544 .
