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Posted on Apr 19, 2022

Screening Methods for Colorectal Cancer

Colon cancer is both preventable and highly treatable when detected early. There are various number of screening options to check for colon cancer, but a colonoscopy is considered the gold standard. The screening methods are given below:-

  • Colonoscopy is the preferred diagnostic tool for colon cancer screening. Research has proven the superiority of colonoscopy over other colon cancer screening tests
  • Flexible sigmoidoscopy is a procedure in which a lighted tube (a sigmoido scope) is inserted into the rectum and the lower colon (also called as the sigmoid) is examined
  • Virtual colonoscopy uses multiple computerized tomography (CT) images to create a detailed picture of the inside of your colon. Fecal Occult Blood Test (FOBT) detects blood in a stool sample. Blood in the stool may be a sign of colorectal cancer, but this is not a diagnostic test. If blood in the stool is detected, a follow-up colonoscopy may need to be performed
  • Double Contrast Barium Enema (DCBE) uses a series of X-rays to evaluate your entire colon and rectum
  • The colorectal cancer (CRC) screening project was undertaken by the Medical Advisory Secretariat (MAS) in collaboration with the Cancer Care Ontario (CCO)
  • Computed tomographic (CT) colonography
  • Magnetic resonance (MR) colonography
  • Wireless capsule endoscopy (PillCam Colon)
  • Fecal occult blood test (FOBT): It is done once a year. For these investigations, you receive a test kit from your hospital staff. At home, you use a stick or brush to obtain a small sample of the stool. You return the test kit to the doctor or a lab, where the stool samples are checked for the presence of blood