Diagnostics

Helical Computed Tomography Can Find Precancerous Polyps

Published in Cancer Weekly, May 6th, 1996

Two-dimensional combined with three-dimensional helical computed tomography (CT) can clearly show precancerous polyps in a patient's colon, a study shows.

Three-dimensional helical computed tomography uses a computer program to show inside the colon, says Dr. Amy Hara, Mayo Clinic in Rochester, Minnesota. "It's almost like we are taking a video camera and walking through the colon," says Hara. The two-dimensional images show slices of the colon, she says.

In a study of 23 patients, two-dimensional combined with three-dimensional CT could accurately show 100 percent of the polyps which were 5 mm or larger, says Hara. The patients had already...

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Source: Cancer Weekly (1996-05-06)

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