9 doctors weighed in:
What is better, a MRI or a pet scan?
9 doctors weighed in

Dr. Garry Choy
Radiology
3 doctors agree
In brief: Depends
An MRI and cat scan article imaging techniques but differ at detecting different kinds of diseases or conditions.
Depending on what your doctors looking for, either technique may be preferred. For example, a pet scan may be more helpful for evaluating cancer. Mri may be helpful for musculoskeletal conditions. Please consult with your physician for further recommendations.

In brief: Depends
An MRI and cat scan article imaging techniques but differ at detecting different kinds of diseases or conditions.
Depending on what your doctors looking for, either technique may be preferred. For example, a pet scan may be more helpful for evaluating cancer. Mri may be helpful for musculoskeletal conditions. Please consult with your physician for further recommendations.
Dr. Garry Choy
Dr. Garry Choy
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Dr. Joseph Accurso
Radiology
2 doctors agree
In brief: Depends on disease
Mri scans look at the structure of the body, the anatomy, and the way diseases change or distort it.
Pet looks at the physiology, or how the body uses, or metabolizes something. For pet, the most common metabolism pathway looked at is how glucose is used. A low dose ct is often acquired at the same time as the pet (as in pet/ct scan), to correlate the pet findings with the ct anatomy.

In brief: Depends on disease
Mri scans look at the structure of the body, the anatomy, and the way diseases change or distort it.
Pet looks at the physiology, or how the body uses, or metabolizes something. For pet, the most common metabolism pathway looked at is how glucose is used. A low dose ct is often acquired at the same time as the pet (as in pet/ct scan), to correlate the pet findings with the ct anatomy.
Dr. Joseph Accurso
Dr. Joseph Accurso
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Dr. Brian Wosnitzer
Nuclear Medicine
1 doctor agrees
In brief: Depends..
Depends on what you are looking for. PET measures glucose metabolism. Increased glucose metabolism can be seen in tumors, infection, and inflammation.
PET can be fused with MRI or CT to visualize anatomy and localize glucose uptake. MRI is good for looking at soft tissues and brain.

In brief: Depends..
Depends on what you are looking for. PET measures glucose metabolism. Increased glucose metabolism can be seen in tumors, infection, and inflammation.
PET can be fused with MRI or CT to visualize anatomy and localize glucose uptake. MRI is good for looking at soft tissues and brain.
Dr. Brian Wosnitzer
Dr. Brian Wosnitzer
Thank
1 doctor agrees
In brief: Depends on the ?
It depends on what you're investigating.
If you want to know the metabolic activity of an area of brain in a disease state or in response to certain medications, then pet is the study of choice. However, if you want to visualize small or large lesions, vascular abnormalities, destruction of myelin, trauma etc. Then MRI is a better choice. Pet is used primarily for physiologic studies & research.

In brief: Depends on the ?
It depends on what you're investigating.
If you want to know the metabolic activity of an area of brain in a disease state or in response to certain medications, then pet is the study of choice. However, if you want to visualize small or large lesions, vascular abnormalities, destruction of myelin, trauma etc. Then MRI is a better choice. Pet is used primarily for physiologic studies & research.
Dr. Jonathan Dissin
Dr. Jonathan Dissin
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