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What is the difference between a MRI and a cat scan?

Which one detects cancer?

3 Answers

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  • 1 decade ago
    Favorite Answer

    Both will show masses or tumors but MRI is better at detecting size and shape. It's more defined with an MRI. The magnetic waves bounce off a particular site that the machine is directed in. However, only a biopsy can tell a Dr if what they see is malignant.

    Source(s): Breast cancer survivor
  • 4 years ago

    Computed tomography (CT) a skill of physique imaging wherein a skinny x-ray beam rotates around the affected person. Small detectors degree the quantity of x-rays that make it interior the path of the affected person or specific component to activity. a working laptop or computing device analyzes the help to construct a go-sectional image. those photos might properly be saved, considered on a exhibit screen, or printed on action picture. besides, 3-dimensional fashions of organs might properly be created by skill of stacking the guy photos, or "slices." MRI is a non-invasive technique that makes use of effective magnets and radio waves to construct photos of the physique. in assessment to common radiography and computed tomographic (CT) imaging, which hire probably volatile radiation (x-rays), MRI imaging is predicated on the magnetic residences of atoms. a effective magnet generates a magnetic field type of 10,000 cases better than the organic heritage magnetism from the earth. an somewhat small share of hydrogen atoms interior of a human physique will align with this field. Please see the information superhighway content for further info on CAT test and MRI test.

  • 1 decade ago

    Both detect changes in the body. MRI uses magnetism amd CT uses X ray radiation. Doctors often use, and look at, both before making a diagnosis.

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