3 doctors weighed in:

How do pet scans, mri, ct, and bone/gallium scans differ?

3 doctors weighed in
Dr. Gerald Mandell
Nuclear Medicine
2 doctors agree

In brief: Different mechanisms

Mri uses magnetic radiation( no x-ray) for anatomic localization and characterization of different parts of body, water and fat constitution of different tissues.
Ct uses x-ray to characterize anatomy of body, better for bone than mr.Pet, bone, gallium scans use radio tracers intravenously.Petglucose metabolism of tumors, gallium (infection/tumor), bone scan for fxs, tumors, infection bone metabolism.

In brief: Different mechanisms

Mri uses magnetic radiation( no x-ray) for anatomic localization and characterization of different parts of body, water and fat constitution of different tissues.
Ct uses x-ray to characterize anatomy of body, better for bone than mr.Pet, bone, gallium scans use radio tracers intravenously.Petglucose metabolism of tumors, gallium (infection/tumor), bone scan for fxs, tumors, infection bone metabolism.
Dr. Gerald Mandell
Dr. Gerald Mandell
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