CT scans are the best alternative to colonoscopy to investigate bowel cancer . 'Virtual colonoscopy' using CT scans is more effective for investigating patients with possible bowel cancer than an X-ray test, says a new stud
Colonoscopies have long been the standard screening procedure for detecting growths in the colon, but CT Colonography is a comparably accurate, non-invasive alternative
Alternatives to colonoscopy include sigmoidoscopy, which is a less invasive form of colonoscopy, and noninvasive methods, such as stool sample testing
Computed tomography (CT) of the abdomen and pelvis is a diagnostic imaging test. Doctors use it to help detect diseases of the small bowel, colon, and other internal organs . It is often used to determine the cause of unexplained pain. CT scanning is fast, painless, noninvasive and accurate.
Colorectal Cancer: Also called colon cancer, this cancer can be detected with a pelvic CT scan , but you may also need a scan around your chest and abdomen to see if the cancer has sprea
What Are the Main Differences Between a CT Scan and Colonoscopy? CT scans utilize X-rays to form images of organs and tissues inside the body (for example, abdominal organs, brain, chest, lungs, heart) while colonoscopy is a procedure that can visualize only the inside surface of the colon .
If your goal is to prevent colon cancer, you really need to have a colonoscopy . If you choose an alternative, stool-based screening method and you have important pre-cancerous polyps, it's really a flip of the coin (or worse) whether these polyps will be detected.
Stool DNA testing (Cologuard) Computed tomography colonography . Guaiac-based fecal occult blood testing (FOB
If a polyp is found during colonoscopy, it will be removed and this prevents the polyp from every turning into cancer. But if you don't have your colonoscopy in the first place, then you are throwing away the chance to detect polyps when they are easily treated
CT scan. Computed tomography (CT) scans can be used in a few ways to help detect colorectal cancer , find signs of cancer in other areas of the body, or determine how well cancer treatment is working.
The sensitivity of CT in detecting colorectal cancer was 100% (95% confidence interval [CI]: 19.8–100%) and the specificity was 95.7% (95% CI: 88.8–98.6%). The positive predictive value was 33.3% (95% CI: 6.0–75.9%) and the negative predictive value was 100% (95% CI: 94.8–100%).
In a number of studies, CT colonography has displayed results equivalent to colonoscopy in both cancer and polyp detection . CT colonography has been shown to rapidly and effectively examine the entire colon for lesions.