A look at your Colon (Intelihealth) - View a sigmoidoscopy and colonoscopy

Commonly Performed Radiographic tests in Gastroenterology (ACG) - Gastroenterologists often order radiographic tests to help diagnose diseases of the gastrointestinal tract. This chapter describes the more commonly performed radiographic tests.

Digestive Disorders Diagnostic Procedures (University of Utah Health Sciences Center)
Some patients need to undergo a more extensive diagnostic evaluation, which may include laboratory tests, imaging tests, and/or endoscopic procedures.

Diagnosis Information (Beth Israel Deaconess Medical Center
Harvard Medical School) - Use the navigation to the left to find more diagnostic information.

Diagnostic Tests (National Digestive Diseases Information Clearinghouse)

Gastrointestinal Investigations (Gastro Net)
Rapid strides have been made in gastro-intestinal endoscopy (gastroscopy, colonoscopy, ERCP, and related techniques) in the last thirty years

How IBD is diagnosed (CCFA)
The following is an overview of the tests that help diagnose and monitor IBD. It also attempts to answer the practical questions that you may have before you undergo testing.

Patient Brochures (American Society for Gastrointestinal Endoscopy)
Patient brochures from the ASGE on a variety of endoscopic procedures. Each brochure covers an overview of the procedure, common questions, alternatives and preparation.

Patient Fact Sheets (Greenwich Hospital)
Information on barium enema, lower GI series, colonoscopy, preparing for tests, small bowel series, upper GI series and upper GI endoscopy