Colonoscopy - Mayo Clinic
2024年2月28日 — A colonoscopy (koe-lun-OS-kuh-pee) is an exam used to look for changes — such as swollen, irritated tissues, polyps or cancer — in the large intestine (colon) and rectum. During a colonoscopy, a long, flexible tube (colonoscope) is inserted into the rectum.
Colon cancer screening: Weighing the options - Mayo Clinic
2022年12月6日 — During a virtual colonoscopy, a CT scan produces cross-sectional images of the abdominal organs, allowing the doctor to detect changes or abnormalities in the colon and rectum. To help create clear images, a small tube (catheter) is placed inside your rectum to fill your colon with air or carbon dioxide.
Screening for Colon Cancer: A New At-Home Test - WebMD
2024年10月16日 — The gold standard screening test for cancer in your colon or rectum, colorectal cancer, is a colonoscopy. This is done at a doctor's office under sedation, after a day of preparation that...
Colorectal Cancer Screening Tests | Sigmoidoscopy & Colonoscopy
There are 3 main types of colorectal cancer screening tests : Blood-based tests: These tests check a person's blood for signs of colorectal cancer. Stool-based tests: These tests check the stool (feces) for signs of colon cancer. These tests are less invasive and easier to have done, but they need to be done more often.
Colonoscopy Procedure: What Happens and How to Prep - WebMD
2024年5月17日 — A colonoscopy is a medical test that examines your rectum and lower bowel for abnormalities and disease. Learn what to expect and how to prepare.
Screening for Colorectal Cancer | Colorectal Cancer | CDC
2024年10月17日 — Overview. A screening test is used to look for a disease when a person doesn't have symptoms. (When a person has symptoms, diagnostic tests are used to find out the cause of the symptoms.) A colonoscopy is one of several screening tests for colorectal cancer. Talk to your doctor about which test is right for you.
Screening Tests to Detect Colorectal Cancer and Polyps
What happens if a colorectal cancer screening test finds an abnormality? What new tests are being developed for colorectal cancer screening? What is colorectal cancer?
FDA approves blood test for colorectal cancer screening among ... - CNN
2024年7月29日 — The US Food and Drug Administration has approved a blood test to be used for colorectal cancer screening among average-risk adults 45 and older.
Colon cancer screening decisions: What's the best option and when?
2022年6月15日 — Colonoscopy: Colonoscopy is the gold standard of screening tests, and identifies approximately 95% of CRC. It is also the only method that allows a gastroenterologist to both detect and remove potentially precancerous colon polyps.
You Can Now Get a Blood Test to Screen for Colorectal Cancer
2024年8月2日 — The Food and Drug Administration (FDA) has approved the first blood test to screen for colorectal cancer. While the test isn’t a replacement for colonoscopies, it expands screening options for patients and could help improve poor testing rates for the second leading cause of cancer-related death.