You can best tell if there is an obstruction by CT but the better test is a small bowel follow thru, at least for me. I had never had an abd CT until 11/07. This site states where the ileum is located and the diameter. My sx were/are almost carbon copy of belleenstein.
Humira, pred and entocort 1/08
3 small bowel resections, 1 for perforation, 2 for strictures