16 doctors weighed in:

Can I be screened for colon cancer with a CT scan instead of a colonoscopy?

16 doctors weighed in
11 doctors agree

In brief: Sometimes

Ct colography is never meant to replace a colonoscopy.
At high volumn centers, the detection sensitivity of ct exam is indeed comparable to colonoscopy but you need to know the rate of detection of your imaging facility. Bowel prep is required for both procedures - no way around the unpleasant process. Beware that there is significant radiation exposure with the exam.

In brief: Sometimes

Ct colography is never meant to replace a colonoscopy.
At high volumn centers, the detection sensitivity of ct exam is indeed comparable to colonoscopy but you need to know the rate of detection of your imaging facility. Bowel prep is required for both procedures - no way around the unpleasant process. Beware that there is significant radiation exposure with the exam.
Dr. George T Tsai
Dr. George T Tsai
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1 comment
Dr. Michael Thompson
Whomever is able to develop the computer algorithm to "digitally subtract" stool from CT images of "unprepped" patients will win a noble prize. I know of investigators working on that and it isn't there yet. However, prepped CT colography has come a long ways. Ideally if a lesion is found a prepped patient could immediately be given a traditional colonoscopy.
Dr. Arie Pelta
Surgery - Colorectal
5 doctors agree

In brief: Maybe

Not standard of care .
Be aware you are awake and if find polyps needs to repeat bowel prep and perform colonoscopy on separate day.

In brief: Maybe

Not standard of care .
Be aware you are awake and if find polyps needs to repeat bowel prep and perform colonoscopy on separate day.
Dr. Arie Pelta
Dr. Arie Pelta
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Dr. Andrew Turrisi
Radiation Oncology
3 doctors agree

In brief: As you can see from

All of the reasonable answers, the answer is a definitive no.
If you find someting by ct (with prep) you will need another prep and endoscopy to prove the answer. Each is charged. Two preps are worse by double one. And conscious sedation is sufficient 9 times out of 10, and lower co-pay.

In brief: As you can see from

All of the reasonable answers, the answer is a definitive no.
If you find someting by ct (with prep) you will need another prep and endoscopy to prove the answer. Each is charged. Two preps are worse by double one. And conscious sedation is sufficient 9 times out of 10, and lower co-pay.
Dr. Andrew Turrisi
Dr. Andrew Turrisi
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Dr. Arie Pelta
Surgery - Colorectal
2 doctors agree

In brief: You can

It is a screening option.
However if a polyp is found then need to repeat the procedure with a colonoscopy and polypectomy.

In brief: You can

It is a screening option.
However if a polyp is found then need to repeat the procedure with a colonoscopy and polypectomy.
Dr. Arie Pelta
Dr. Arie Pelta
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Dr. Ronald Kline
Surgery - Colorectal
2 doctors agree

In brief: Yes

Virtual colonoscopy can screen for polyps.
If one is found a traditional colonoscopy will be needed to remove it. Virtual colonoscopy is good for follow-up after a polyp has been removed.

In brief: Yes

Virtual colonoscopy can screen for polyps.
If one is found a traditional colonoscopy will be needed to remove it. Virtual colonoscopy is good for follow-up after a polyp has been removed.
Dr. Ronald Kline
Dr. Ronald Kline
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