Tc-99m DMSA

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Contents

[edit] Full name

Tc-99m dimercaptosuccinic acid

[edit] Photon energy

140 keV

[edit] Uses, dosages, and Time of Imaging

  • Renal cortical imaging
  • Adult dose: 15-20 mCi IV
  • Pediatric dose: 200 mCi/kg
  • Image at 2 hours

[edit] Physical half life

6 hours

[edit] Biological half life

[edit] Normal distribution

Kidneys

[edit] Pharmacokinetics

  • 40-50% fixed to cortex (greater than glucoheptonate)
  • Maximal cortical uptake within 3 hours

[edit] Excretion

Renal

[edit] Target organ

Kidneys

[edit] Other

  • High resolution imaging with pinhole collimators and SPECT (not possible with DTPA, MAG3, or OIH secondary to rapid transit)