Isotopes

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Tc-99 140keV 6hr Isomeric Transition
I-123 159keV 13.3hr e- capture
I-131 364keV 8d B- decay
Xe-133 82keV 5.2d B- decay
In-111 247 & 173keV 67hr e- capture
Tl-201 71 & 167keV 73hr e- capture
Ga-67 93, 184 & 300keV 78hr e- capture


[edit] Renal Isotopes

Tc-99m DMSA is superior for defining renal cortical anatomy, while agents such as DTPA and MAG-3 are better for evaluating renal function and urinary tract dynamics. Tc-99m DTPA & Cr-51 EDTA are used for the estimation of GFR; I-123 Hippuran for ERPF; Tc-99m MAG3 for TER


[edit] Blood flow agents

Tc-99m pertechnetate, Tc-99m DTPA, Tc-99m glucoheptonate

[edit] Abdominal Isotopes

  • Tagged RBCs: normal structures with prominent blood pool activity (Film 6a), including the spleen (white arrow) ventricular cavities (black arrows), and central veins.
  • Octreotide
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