Positron emission tomography (PET) is one of the nuclear medicine techniques available for diagnosis. Whilst X-rays provide information on the structure of the body, PET shows the chemical function of a particular organism. PET involves the injection of FDG (a glucose-based radionuclide) from a shielded syringe into the patient. As the FDG travels through the patient’s body it emits gamma radiation which is detected by a gamma camera, from which the chemical activity within cells and organs can be seen. Any abnormal chemical activity may be a sign that tumours are present.

PET scans are frequently used to detect cancerous tumours and diseases of the brain and coronary arteries.

Applications for tungsten alloy shielding in PET include:

 

PET syringe shield

Tungsten vial shield

Tungsten FDG transport container

Collimator for gamma camera

Technetium generator

 

 

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