8 doctors weighed in:

What is the difference in diagnostics between mri, cat scan and colonoscopy? Which one is best for identifying problems?

8 doctors weighed in
Dr. Eric Wang
Radiology
5 doctors agree

In brief: Depends

Mri and ct scans are noninvasive imaging techniques.
They have their own inherent advantages and disadvantages, and to compare them would be too complicated here. Colonoscopy is invasive, where a camera is extended via the rectum into the colon to see what the inside of the colon looks like, usually for cancer screening.

In brief: Depends

Mri and ct scans are noninvasive imaging techniques.
They have their own inherent advantages and disadvantages, and to compare them would be too complicated here. Colonoscopy is invasive, where a camera is extended via the rectum into the colon to see what the inside of the colon looks like, usually for cancer screening.
Dr. Eric Wang
Dr. Eric Wang
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Dr. Frederick Shieh
Internal Medicine - Gastroenterology
1 doctor agrees

In brief: Big differences

Each of the tests you mentioned (mri, ct, colonoscopy) are used to diagnose different things.
Therefore, depending on the problem you are trying to figure out, one test will be better than another. For example, colonoscopy is great for picking up colon polyps, but a regular ct would probably miss them. However, a ct would be great for appendicitis, and a colonoscopy would not be.

In brief: Big differences

Each of the tests you mentioned (mri, ct, colonoscopy) are used to diagnose different things.
Therefore, depending on the problem you are trying to figure out, one test will be better than another. For example, colonoscopy is great for picking up colon polyps, but a regular ct would probably miss them. However, a ct would be great for appendicitis, and a colonoscopy would not be.
Dr. Frederick Shieh
Dr. Frederick Shieh
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