Ulcerative colitis (UC) is a chronic inflammatory bowel disease that causes inflammation and ulcers in the lining of the large intestine (colon) and rectum. While colonoscopy remains the primary tool for diagnosing and monitoring UC, CT scanning plays an important complementary role — particularly during acute flare-ups, when complications are suspected, and when colonoscopy may not be safe to perform.
At Independent Physicians Medical Center (IPMC) in Northeast Philadelphia, we offer advanced CT imaging to help gastroenterologists manage inflammatory bowel disease effectively.
How Are CT Scans Used for Ulcerative Colitis?
A CT scan of the abdomen and pelvis can reveal important information about the extent and severity of ulcerative colitis that complements what your gastroenterologist learns from colonoscopy and blood tests. CT imaging can show:
Wall thickening. Inflammation causes the colon wall to become thicker than normal, and CT can measure this thickening and show which segments of the colon are affected.
Pericolonic inflammation. CT can detect “fat stranding” — haziness in the fat surrounding the inflamed colon — which indicates active inflammation extending beyond the bowel wall.
Complications. CT is particularly valuable for identifying serious complications of UC, including toxic megacolon (dangerous dilation of the colon), perforation (a hole in the colon wall), abscess formation, and strictures (narrowing of the colon).
Extent of disease. CT can show whether the inflammation is limited to the rectum (proctitis), extends to the left side of the colon (left-sided colitis), or involves the entire colon (pancolitis).
Extraintestinal findings. CT may also reveal associated conditions such as liver abnormalities (primary sclerosing cholangitis), sacroiliitis, or other findings that can accompany inflammatory bowel disease.
When Might Your Doctor Order a CT for Ulcerative Colitis?
CT is especially useful in the following situations:
- During a severe flare-up when your gastroenterologist needs to quickly assess the severity of inflammation and check for complications
- When toxic megacolon or perforation is suspected — these are surgical emergencies
- Before or after surgery for UC (such as colectomy)
- When colonoscopy cannot be safely performed due to the severity of the flare
- To differentiate UC from other conditions that can cause similar symptoms, such as Crohn’s disease, ischemic colitis, or infectious colitis
- To evaluate unexplained abdominal pain, fever, or worsening symptoms in a patient with known UC
What to Expect During the Scan
You may be asked to fast for a few hours and may drink oral contrast solution. IV contrast is typically used as well. You’ll lie on a table that slides through the scanner. The procedure takes about 15 to 30 minutes and is painless.
After the scan, you can resume normal activities. A board-certified radiologist will analyze the images and send a report to your gastroenterologist.
CT Scan at IPMC
Why Choose IPMC for Your CT Scan in Philadelphia?
Convenient Location and Flexible Hours
Fast Appointments & Quick Results
Comfortable Outpatient Setting
Avoid the stress of a hospital visit. Our welcoming center is designed for efficiency and patient comfort
Experienced, Board-Certified Physicians
Your imaging is reviewed by experienced professionals dedicated to accuracy and personalized care.
Schedule Your CT Scan Today
If your physician has recommended a CT scan, IPMC is here to provide reliable, high-quality imaging close to home in Northeast Philadelphia.
- Call 215-464-3300 to book your appointment.
- Visit us at 9908 E. Roosevelt Blvd., Philadelphia, PA 19115
At Independent Physicians Medical Center, we believe medical care should be personal, efficient, and focused on you—starting with your imaging experience.
