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DOTA-TATE can be reacted with the radionuclides gallium-68 (T 1/2 = 68 min), lutetium-177 (T 1/2 = 6.65 d) and copper-64 (T 1/2 = 12.7 h) to form radiopharmaceuticals for positron emission tomography (PET) imaging or radionuclide therapy. 177 Lu DOTA-TATE therapy is a form of peptide receptor radionuclide therapy (PRRT) which targets ...
Gallium-68, which has a 68 minutes half-life, is produced in a gallium-68 generator by decay of germanium-68 with a 271 day half-life or by the irradiation of zinc-68 through a low energy cyclotron. Use of a generator means a supply of 68 Ga can be produced easily with minimal infrastructure, for example at sites without a cyclotron , commonly ...
The mobile phase is a solvent able to elute (wash out) gallium-68 (III) (68 Ga 3+) after it has been produced by electron capture decay from the immobilized (absorbed) germanium-68. Currently, such 68 Ga (III) is easily eluted with a few mL of 0.05 M, 0.1 M or 1.0 M hydrochloric acid from generators using metal-free tin dioxide [ 3 ] or ...
Instead of gamma-emitting 111 In, certain octreotide derivatives such as edotreotide (DOTATOC) or DOTATATE are able to be linked by chelation to positron-emitting isotopes such as gallium-68 and copper-64 which in turn can be evaluated with more precise (compared with SPECT) scanning techniques such as PET-CT.
Gallium (68 Ga) gozetotide or Gallium (68 Ga) PSMA-11 sold under the brand name Illuccix among others, is a radiopharmaceutical made of 68 Ga conjugated to prostate-specific membrane antigen (PSMA) targeting ligand, Glu-Urea-Lys(Ahx)-HBED-CC, used for imaging prostate cancer by positron emission tomography (PET). [11]
The shorter-lived gallium-68 (half-life 68 minutes) is a positron-emitting isotope generated in very small quantities from germanium-68 in gallium-68 generators or in much greater quantities by proton bombardment of 68 Zn in low-energy medical cyclotrons, [4] [5] for use in a small minority of diagnostic PET scans.
Piflufolastat (18 F), sold under the brand name Pylarify among others, is a radioactive diagnostic agent used for positron emission tomography (PET) imaging.[1] [4] [5] It is given by intravenous injection.
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