Don't forget non-gastrointestinal causes of abdominal pain
Other investigations
An abdominal aortic aneurysm can often be seen with ultrasound but is more definitively assessed prior to treatment with CT
Calcification of arteries seen on x-rays is a sign of more generalised atherosclerosis.
Occasionally vascular calcification seen on an abdominal X-ray reveals an unexpected aneurysm. Remember that abdominal pain is not only caused by gastrointestinal disease.
