Characteristic Muscular FDG Uptake Patterns Related to the Transportation Means Used by Patients to Visit the Hospital.

It is well-known that physiological FDG uptake in the skeletal muscles is affected by serum insulin levels and the extent to which the muscles contract before the examination. Patients are instructed to refrain from strenuous exercise, talking too much, and taking meals at least 4 hours before the administration of the tracer. Even if the patient does not intend to exercise, muscular accumulation related to specific behaviors can still be visualized in the images. In this manuscript, we present FDG PET/CT images from 4 cases reflecting the mode of transportation used by the patients to visit the hospital.