A patient undergoes a bone scan using positron emission tomography (PET). What is the principle behind this imaging technique?
Q1. A patient undergoes a bone scan using positron emission tomography (PET). What is the principle behind this imaging technique?
Answer: Annihilation of positrons and electrons
Explanation: Annihilation of positrons and electrons is the principle behind PET, as it produces a signal when positrons collide with electrons.