Medicine Which of the following imaging techniques is best able to measure regional brain substrate uptake and metabolic kinetics? A magnetic resonance imaging (MRI) B computed tomography (CT) C positron emission tomography (PET) D serial thallium scintigrams 💡 Explanation Which of the following imaging techniques is best able to measure regional brain substrate uptake and metabolic kinetics? ✓ Correct Answer: C. positron emission tomography (PET)