43 of 46 consecutive patients with suspected rupture of abdominal aort
ic aneurysm could be examined by spiral CT. Rupture of an abdominal ve
ssel was found in 18 patients and proved by surgery. Size and extent o
f the aneurysm, rupture, dissection and vascular occlusion were demons
trated quickly and precisely by spiral CT, planning of surgical interv
ention could be optimized. Using spiral CT unnecessary explorative lap
arotomies could be avoided in 25 patients. In addition spiral CT offer
s the possibility of multiplanar reconstruction images with spatial vi
sualisation of the vascular system. In 8 patients DSA offered no advan
tage in comparison with 3-D reconstruction images. Spiral CT meets all
requirements for quick and reliable diagnosis in suspected rupture of
abdominal vessels. Other imaging modalities like digital subtraction
angiography are not necessary for evaluation of abdominal aortic aneur
ysms.