Technetium 99m-methyl diphosphonate

Last revised by Mostafa Elfeky on 6 Jan 2022

Technetium 99m-methyl diphosphonate (99mTc MDP) is a radiotracer used in nuclear medicine especially for bone scintigraphy. Any disease process which results in extracellular fluid expansion will lead to accumulation of this tracer.

Radionuclide profile

  • photon energy: 140 keV
  • physical half-life: 6 hours
  • critical organ: urinary bladder


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Cases and figures

  • Case 1: planar imaging in insufficiency fractures
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  • Case 2: SPECT/CT of osteomyelitis
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  • Case 3: Negative scan
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