AIM: To determine the accuracy of @entity5221 ( @entity5221 ) in determining @entity5 resectability in @entity1 with locally advanced primary (T4) or locally recurrent @entity14 . METHODS: Computed tomography scans of 84 @entity1 with "resectable" locally advanced primary @entity5 (n = 12) or recurrent @entity14 (n = 72) were compared with the operative findings to assess the accuracy of abdominal and pelvic @entity5221 in determining extent of disease and resectability. RESULTS: At surgery, disease was confined to the pelvis in 63 @entity1 , the abdomen in 7, and involved both the pelvis and abdomen in 14. Computed tomography correctly identified these anatomic sites of @entity5 in 87% of @entity1 , with 89% and 80% accuracies for @entity530 , respectively. @entity5 resection was performed in 71 @entity1 (85%), but was not in 13 @entity1 because of locally unresectable disease in 8 and @entity3 in 5. The accuracy of predicting @entity5 -related operability was 85%. With regard to adjacent organ resection, @entity5221 was accurate in determining the need for sacrectomy or hysterectomy, but overestimated the need for urinary organ resection. Based on histological examination of resection margins, @entity5221 correctly staged (n = 45) or overstaged (n = 9) 54 @entity1 (64%) and understaged the remaining 30. The ability of @entity5221 to preoperatively predict a locally advanced @entity5 after preoperative radiation therapy as not being fixed was 30%, fixed but resectable 75%, and fixed but not resectable 25%. CONCLUSIONS: Computed tomography is generally reliable at identifying disease as being confined to one region, and for predicting the need for adjacent organ resection. It is less discriminating for predicting @entity5 resectability.

Accuracy of computed tomography in determining resectability for locally advanced primary or recurrent XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'Tumor', 'rectal cancer', 'local tumor'] @entity530 :: ('MESH:D010386', 'Disease') :: ['pelvic and abdominal disease'] @entity5221 :: ('MESH:C537792', 'Disease') :: ['CT', 'computed axial tomography'] @entity14 :: ('MESH:D015179', 'Disease') :: ['colorectal cancer'] @entity3 :: ('MESH:D009362', 'Disease') :: ['metastatic disease']
@entity14 :: (MESH:D015179,Disease) :: ['colorectal cancers']
