The "tourniquet effect".
There is increasing popularity of three-phase bone scintigrams in the evaluation of soft tissues and bony disorders. However, if the areas in question happen to be hands, wrists, and forearms, the usual method of injection of a radiotracer may introduce a significant abnormality during the first two phases of a three-phase study.
D001842:Bone and Bones / Q000000981:diagnostic imaging*; D004164:Diphosphonates / Q000008:administration & dosage; D005542:Forearm / Q000098:blood supply; D006225:Hand / Q000098:blood supply; D006801:Humans; D011877:Radionuclide Imaging; D012039:Regional Blood Flow; D013667:Technetium / Q000008:administration & dosage; D013669:Technetium Tc 99m Medronate; D014111:Tourniquets / Q000009:adverse effects*; D014953:Wrist / Q000098:blood supply
D004164:Diphosphonates; D013667:Technetium; D013669:Technetium Tc 99m Medronate