Two cases of atypical mesenteric ischemia where color Doppler US demonstrat
ion of the underlying arterial abnormality and collateral supply was possib
le are presented. Significant stenosis of the celiac axis and thrombosis of
the SMA were clearly depicted, along with the presence of collateral arter
ial supply. Endovascular treatment was successful in both cases. These case
s confirm the possibility of detecting collateral flow at Doppler imaging i
n patients with mesenteric ischemia, both for diagnosis of mesenteric ische
mia and endovascular treatment planning.