A CT scan of the abdomen and pelvis is a diagnostic imaging test that uses X-rays and computer technology to create detailed images of the inside of the abdomen and pelvis.
During the exam, the patient lies on a table that moves into a large ring containing an X-ray source and an X-ray detector. As the table moves, the X-ray source rotates around the patient's body, emitting multiple X-ray beams that are collected by the X-ray detector. The information collected is used to create detailed cross-sectional images that can be viewed on a computer monitor.
This test is used to evaluate a variety of medical conditions, such as traumatic injuries, cancer, inflammatory bowel disease, intestinal obstructions, and other abdominal and pelvic conditions. The exam can help identify the cause of symptoms such as abdominal pain, diarrhea, rectal bleeding, and other gastrointestinal problems.
Before the exam, the patient may be asked to refrain from eating or drinking for a certain period of time and to refrain from taking certain medications. The exam itself is painless and usually takes about 30 minutes. However, the patient will be exposed to a small amount of ionizing radiation, so the doctor and patient must weigh the benefits of the exam against the potential risks associated with radiation exposure.
