Difference between bone scan and pet scan
Bone scan vs pet scan:
Scans are typically made use of in order to examine the interior of the human body with the aim of diagnosing diseases, conditions and injuries within the body. Bone scans and cat scans are two such imaging tools used by the medical professionals in order to deliver diagnosis on varioys abnormalities.
What is bone scan?
Prior to a bone scan, a radioactive material is injected into the body of the patient which will then aid the medical professionals in filming the body. A special camera will then detect this material and this examination of the body will help determine increases or decreases in bone metabolism. This is called a nuclear scanning which will help identify bone growth or abnormalities within the bone. Bone scans are done upon bones in order to diagnose cancers and diseases and also to monitor degenerative joint and bone diseases which occur due to various factors.
What is pet scan?
Positron emission tomography (PET) scans are performed upon tissues and organs with the aid of a radioactive substance which will in turn determine whether or not these tissues and organs are functioning properly. This does not make use of nuclear scanning techniques and makes use of a tracer instead which is made of glucose that will aid the metabolic process within the cells of the body.
PET scans are performed in order to diagnose brain and heart issues, as well as cancer in various organs and tissues. It also helps identify nervous system diseases such as Parkinson’s and Alzheimer’s
What is the difference between bone scan and pet scan?
As stated by the Boca Radiology Group, PET scans have proven to be better than bone scans as they possess the ability to differentiate active from dormant disease. And whereas a bone scan merely captures images with the use of a nuclear radiation tracer, a PET scan makes use of a tracer that is intravenously inserted into a vein.
While in a bone scan, the tracer procedure can take up to six hours to capture the images clearly, in a PET scan, a tracer only takes 30 to 60 minutes to complete the procedure. Whereas during a bone scan the patient is required to drink 4-6 glasses of water which in turn help in cleansing radioactive substance from the bladder, a PET scan does not demand so.
The equipment used in the procedure are blatantly different as well. In a bone scan, a gamma camera is used to record the images whereas in a PET scan, the equipment is shaped like a donut. Also, the areas that are being concentrated during each scan too varies. While a bone scan would examine the areas where the bones have their effect, a PET scan concentrates on the heart and the brain and will conduct tumour detection over the entire body.