PET/MRI in the Diagnosis of Chronic Pain

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Chronic pain is a significant, widespread problem affecting every fifth person worldwide. Reported in 2011 by the Institute of Medicine, chronic pain affects 116 million American adults - more than the total number of individuals affected by heart disease, cancer, and diabetes combined. An estimated...

Chronic pain is a significant, widespread problem affecting every fifth person worldwide. Reported in 2011 by the Institute of Medicine, chronic pain affects 116 million American adults - more than the total number of individuals affected by heart disease, cancer, and diabetes combined. An estimated $635 billion each year is spent in the medical management of chronic pain and lost productivity. Better clinical methods to diagnose and localize pain are needed. The investigators have developed a S1R-specific radiotracer, [18F]FTC-146. Using imaging approaches to assess the location of S1R in pain may provide a tool to diagnose pain generators, monitor treatment response, and aid in the selection of patients for treatment. The goal is to use [18F]FTC-146 to image S1R expression in healthy volunteers and to compare the images to those individuals suffering from pain conditions in the following categories: (1) nociceptive pain (pain that results from tissue injury or inflammation), (2) neuropathic pain (pain that results from direct injury, disruption, impingement/compression or malfunction of the peripheral and/or central nervous system), and (3) mixed pain (pain that appears to have both nociceptive and neuropathic).

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