Typically, a CT scan is pretty good for diagnosing small bowel obstruction. If the results are non-revealing, you can consider further testing. This can include a small bowel series or enteroclysis (where the duodenum is intubated and air and contrast are instilled directly into the small intestine). These tests can be more sensitive than a CT scan.
Another option would be an ultrasound - however this isn't as sensitive as the CT scan.
As for the conflicting recommendations, you may want to consider a referral to a
majorMajor tears
Major-gesic academic medical center for another opinion. In difficult cases such as this, an academic medical center may have the experience that smaller hospitals lack.
You can discuss these options with your personal physician.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
http://www.straightfromthedoc.com