Computed tomography (CT) of XXXX : determination of longitudinal extent.

@entity1 @entity439 @entity1028
The aim of this study was to evaluate computed tomography (CT) in the assessment of @entity1028 with particular reference to their longitudinal extent. Twenty-nine @entity1 were examined by CT, 21 of whom came to surgery. Sixteen of these 21 @entity1 were also examined by ultrasound. At CT the relation of the @entity439 to the renal arteries proximally and the bifurcation distally was noted, along with the definition of the aortic outline. At subsequent surgery the longitudinal relations of the @entity439 and evidence of localized stretching of or leakage from the sac were assessed by an observer without knowledge of the CT scan report. Correct extent of the @entity439 in relation to the renal arteries was predicted by CT in 20 out of 21 @entity1 who underwent surgery. CT assessment with respect to the bifurcation was correct in 16. The CT findings proved correct in one @entity1 with localized stretching of one part of the @entity439 and in one @entity1 where leakage was occurring. CT scanning was found to be superior to ultrasound in our preoperative assessment of the superior extent of @entity1028 . CT is considered to be the investigation of first choice when evaluation an @entity1028 .
