system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Gamma Rays are used in?
assistant
The correct answer is  *PET Scan uses Gamma Rays. *Gamma Rays are used in SCINTIGRAPHY STUDIES(Tc99m radioisotope studies),SPECT(Single Photon Emission Computerised Tomography) studies and PET scan (Positron Emission Tomography), Bone scan (Tc99m-MDP studies) *All other investigations given in the options use X rays.