2 doctors weighed in:

Expert opinions? Which has more radiation: bone scan or ct?

2 doctors weighed in
Dr. Gerald Mandell
Nuclear Medicine

In brief: Sometimes same dose

Background radiation at sea level: 3 msv per year, denver residents get: 6 msv per year, cross country flight: 0.
02 msv, x ray chest: 0.06 msv, ct head: 3 msv, ct chest: 5 msv (equivalent to 100 chest xrays) ct abdomen: 5-10, average bone scan 6.5 msv. Radiation depends on size of patient." radiation affects growing body in children more than adults. Doses to children are much less.

In brief: Sometimes same dose

Background radiation at sea level: 3 msv per year, denver residents get: 6 msv per year, cross country flight: 0.
02 msv, x ray chest: 0.06 msv, ct head: 3 msv, ct chest: 5 msv (equivalent to 100 chest xrays) ct abdomen: 5-10, average bone scan 6.5 msv. Radiation depends on size of patient." radiation affects growing body in children more than adults. Doses to children are much less.
Dr. Gerald Mandell
Dr. Gerald Mandell
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Dr. Brian Wosnitzer
Nuclear Medicine

In brief: It's complicated..

Ct scans can be done with different settings but in general, a tc bone scan should have less radiation than a ct scan but it depends on what portion of the body the ct scan is performed on.
Ct chest? Abdomen? Pelvis? All of the above?

In brief: It's complicated..

Ct scans can be done with different settings but in general, a tc bone scan should have less radiation than a ct scan but it depends on what portion of the body the ct scan is performed on.
Ct chest? Abdomen? Pelvis? All of the above?
Dr. Brian Wosnitzer
Dr. Brian Wosnitzer
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