| gallium isotopes | Stable gallium atoms that have the same atomic number as the element gallium, but differ in atomic weight. Ga-71 is a stable gallium isotope. (12 Dec 1998) |
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| gallium radioisotopes | Unstable isotopes of gallium that decay or disintegrate emitting radiation. Ga atoms with atomic weights 63-68, 70 and 72-76 are radioactive gallium isotopes. (12 Dec 1998) |
| gallium uptake with normal chest film | <radiology> Pulmonary drug toxicity, tumour infiltration, sarcoidosis, pneumocystis carinii see: lung: gallium imaging (12 Dec 1998) |
| gallium vs. indium | <radiology> Advantages: Ga-67 citrate, readily available, no preparation, bone and soft-tissue infections, chronic inflammatory processes, In-111 WBCs, no bowel uptake, minimal or no uptake in healing wounds, images easier to interpret, high specificity for inflammatory process (12 Dec 1998) |
| gallium-67 | A cyclotron-produced radionuclide with a half-life of 3.260 days and major gamma ray emissions of 93, 185, and 300 kiloelectron volts; used in the citrate form as a tumour-and inflammation-localizing radiotracer. (05 Mar 2000) |
| gallium-67 citrate | <radiology> Analogue of ferric iron, decay: by electron capture to ground state of Zn-67, energy levels: 92 KeV (40%); 184 KeV (23%); 296 KeV (21%), physiological half life: 3.3 days (78 hr), biological half life: 2-3 weeks, binding sites: serum: transferrin, haptoglobin, albumin, globulins, tissue: lactoferrin, PMN's (viable and nonviable), lymphocytes, macrophages, bacteria and fungi, tumour cell-associated transferrin receptor see: gallium: indications (12 Dec 1998) |
| gallium-68 | A positron emitter with a radioactive half-life of 1.130 hours. (05 Mar 2000) |
| gallium: indications | <radiology> Indications: inflammation, bone, tumour, lung, renal, lymphoma, malignant melanoma NO UPTAKE: most benign neoplasms, haemangioma, cirrhosis, cystic disease of breast, liver, thyroid, reactive lymphadenopathy, inactive granulomatous disease see: gallium-67 citrate (12 Dec 1998) |
| galliwasp | <zoology> A West Indian lizard (Celestus occiduus), about a foot long, imagined by the natives to be venomous. Origin: Etymol. Uncertain. Source: Websters Dictionary (01 Mar 1998) |