3 doctors weighed in:

What is the difference between an MRI and a xray?

3 doctors weighed in
Dr. Gerald Mandell
Nuclear Medicine
1 doctor agrees

In brief: Ionizing radiation

Magnetic resonance imaging involves magnetic fields and no ionizing radiation.
Xray is a form of ionizing radiation. Too much ionizing radiation can be unhealthy with possible development of cancer when utiilized to excess with multiple CT exams. For some diagnoses mri can not be used. Ionizing radiation is then necessary for diagnosis.

In brief: Ionizing radiation

Magnetic resonance imaging involves magnetic fields and no ionizing radiation.
Xray is a form of ionizing radiation. Too much ionizing radiation can be unhealthy with possible development of cancer when utiilized to excess with multiple CT exams. For some diagnoses mri can not be used. Ionizing radiation is then necessary for diagnosis.
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Dr. Amy Levine
Radiology

In brief: Many

Mri takes multiple "sliced" images of structures, in multiple "directions" (planes), and uses different techniques to assess different types of structures.
It is best at soft tissue (brain, muscle, etc). It is more expensive and takes more time. An x-ray is a single image, which uses radiation.

In brief: Many

Mri takes multiple "sliced" images of structures, in multiple "directions" (planes), and uses different techniques to assess different types of structures.
It is best at soft tissue (brain, muscle, etc). It is more expensive and takes more time. An x-ray is a single image, which uses radiation.
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