New computed tomographic signs of aortoenteric fistula
J. S. Kukora, F. W. Rushton and P. E. Cranston
Successful preoperative diagnosis of aortoenteric fistula is often
difficult. Clinical findings, roentgenography, angiography, and endoscopy
have been used in diagnosis with only partial success. Newer techniques of
gallium citrate Ga 67 scanning, ultrasonography, and computed tomographic
(CT) scanning have been used in recent years to establish the diagnosis of
aortic graft infection or aortoenteric fistula. In two cases, the CT scan
clearly established the diagnosis of secondary aortoenteric fistula, as
well as two previously unreported signs of aortoenteric fistula:
intraluminal aortic gas and paraprosthetic extravasation of contrast
medium.
