| 167Ga | radioactive Gallium(used in whole-body & brain scans) |
|---|---|
| Ga | gallium; granulocyte agglutination |
| In | index; indium; inion; insulin; inulin |
| ITO | indium tin oxide |
| 111In | 111)indium |
|---|---|
| In-111 | Indium 111 |
| ITO | indium tin oxide |
| 67Ga | Gallium |
| Ga | Gallium |
| 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) |
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| indium | <chemistry> A rare metallic element, discovered in certain ores of zinc, by means of its characteristic spectrum of two indigo blue lines; hence, its name. In appearance it resembles zinc, being white or lead gray, soft, malleable and easily fusible, but in its chemical relation it resembles aluminium or gallium. Symbol In. Atomic weight.4. Origin: NL. See Indigo. Source: Websters Dictionary (01 Mar 1998) |
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| indium-111 | A cyclotron-produced radionuclide with a half-life of 2.8049 days and with gamma ray emissions of 171.2 and 245.3 kiloelectron volts. In a chloride form, it is used as a bone marrow and tumour-localizing tracer; in a chelate form, as a cerebrospinal fluid tracer. Indium-111 chloride Indium-111 trichloride, Cl3In;used in electron microscopy to stain nucleic acids in thin tissue sections. (05 Mar 2000) |
| indium-113m | A radioactive isomer of 113In; it has a half-life of 1.658 hours; it has been used in cisternography and as a diagnostic aid in cardiac output. (05 Mar 2000) |
| indium radioisotopes | Unstable isotopes of indium that decay or disintegrate emitting radiation. In atoms with atomic weights 106-112, 113m, 114, and 116-124 are radioactive indium isotopes. (12 Dec 1998) |
| bone: gallium imaging | <radiology> Increased activity in: active osteomyelitis (90% sensitivity: better than Tc-99m MDP), sarcoma, cellulitis, septic arthritis, rheumatoid arthritis, Paget disease, metastases (65% sensitivity: than for bone agents) see: gallium: indications (12 Dec 1998) |
| gallium | <chemistry, element> A rare metallic element, found in certain zinc ores. It is white, hard, and malleable, resembling aluminium, and remarcable for its low melting point (86 F, 30C). The element was predicted with most of its properties, under the name ekaluminium, by the Russian chemist Mendelejeff, on the basis of the Periodic law. This prediction was verified in its discovery by the French chemist Lecoq de Boisbaudran by its characteristic spectrum (two violet lines), in an examination of a zinc blende from the Pyrenees. Atomic weight: 69.9 Abbreviation: Ga Origin: NL, fr. L. Gallia France. Source: Websters Dictionary (01 Mar 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) |
| 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) |
| 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) |
| malignant melanoma: gallium imaging | <radiology> Greater than50% sensitivity for primary and metastatic sites: 73% sensitivity if lesion is greater than 2 cm, 17% sensitivity if less than 2 cm, see: gallium: indications malignant melanoma (12 Dec 1998) |
| neoplasm: gallium imaging | <radiology> Useful: Hodgkin disease and histiocytic form of NHL poor sensitivity below the diaphragm, Burkitt lymphoma: almost 100% sensitivity, hepatoma: 90% sensitivity, melanoma: 90% sensitivity, leukaemia possibly useful: NHL: good for large and mediastinal lesions, nodal metastases from seminoma and embryonal cell carcinoma: 87% sensitivity, non-small cell lung CA: 85% sensitive not useful: head and neck, GI (especially adenocarcinoma), breast, gynaecological, kiddie tumours see: gallium: indications (12 Dec 1998) |
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