bone scan

an imaging investigation of the musculoskeletal system using radioactive tracers. Technetium-99m phosphate is injected intravenously and absorbed into the hydroxyapatite crystals of bone. It concentrates in areas of increased blood flow and metabolism, such as areas of infection, trauma, and neoplasia, before giving off radiation that can be detected by a gamma camera, which produces a map or scan of activity in the target area. A bone scan is particularly useful in the diagnosis of subtle fractures (including stress fractures), avascular necrosis (see osteonecrosis), osteomyelitis, and loosening of orthopaedic implants.

The new mediacal dictionary. 2014.

Look at other dictionaries:

  • Bone scan — Bone imaging is a study to visually detect bone abnormalities. Such imaging studies include magnetic resonance imaging (MRI), X ray computed tomography (CT) and especially nuclear medicine. In the latter case the patient is injected with a small… …   Wikipedia

  • Bone scan — A technique to create images of bones on a computer screen or on film. A small amount of radioactive material is injected and travels through the bloodstream. It collects in the bones, especially in abnormal areas of the bones, and is detected by …   Medical dictionary

  • bone scan — /ˈboʊn skæn/ (say bohn skan) noun Medicine an examination of bone metabolic activity which uses a scanner (def. 2) to measure concentrations of radioactive material in the bone after the injection of a source of radioactivity …   Australian English dictionary

  • bone scan — noun An X ray of bone taken after injection of radioactive material that accumulates there and reveals its structure …   Wiktionary

  • bone scan — medical examination which produces picture images of bones …   English contemporary dictionary

  • bone scan — A technique to create images of bones on a computer screen or on film. A small amount of radioactive material is injected into a blood vessel and travels through the bloodstream; it collects in the bones and is detected by a scanner …   English dictionary of cancer terms

  • Bone spavin — is a bony growth within the lower hock joint of horse or cattle. It is caused by osteoarthritis, and the degree of lameness that results can be serious enough to end a horse s competitive career.Description of bone spavinBone spavin is… …   Wikipedia

  • bone cancer — ▪ disease Introduction       disease characterized by uncontrolled growth of cells of the bone. Primary bone cancer that is, cancer that arises directly in the bone is relatively rare. In the United States, for example, only about 2,400 new cases …   Universalium

  • Bone fracture — Classification and external resources Internal and external views of an arm with a compound fracture, both before and after surgery. ICD 10 …   Wikipedia

  • bone mineral density scan — An imaging test that measures bone density (the amount of bone mineral contained in a certain volume of bone) by passing x rays with two different energy levels through the bone. It is used to diagnose osteoporosis (decrease in bone mass and… …   English dictionary of cancer terms

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