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 (Ga) [gal´e-um]
a chemical element, atomic number 31, atomic weight 69.72. (See Appendix 6.)
gallium 67 a radioisotope of gallium, atomic mass 67, having a half-life of 3.26 days; used in the imaging of tumors, especially of soft tissue, and sites of inflammation and abscess.

gal·li·um (Ga),

A rare metal, atomic no. 31, atomic wt. 69.723.
[L. Gallia, France]


/gal·li·um/ (Ga) (gal´e-um) a chemical element, at. no. 31. The nitrate salt is an inhibitor of bone calcium resorption and is used to treat cancer-related hypercalcemia.
gallium Ga 67 citrate  a radiopharmaceutical imaging agent used to image neoplasms, particularly of soft tissues, and sites of inflammation and abscess.

gallium (Ga)

Etymology: L, Gallia, Gaul
a metallic element. Its atomic number is 31, and its atomic mass is 69.72. The melting point of gallium is 29.8° C (88.6° F); it will melt if held in the hand. Because of its high boiling point (1983° C; 3602° F), it is used in high-temperature thermometers. Radioisotopes of gallium are used in total body scanning procedures. Many of its compounds are poisonous.


A rare metal; atomic no. 31, atomic wt. 69.723.
[L. Gallia, France]


A form of radionuclide that is used to help locate tumors and inflammation (specifically referred to as GA67 citrate).


(Ga) (gal'ē-ŭm)
A rare metal; atomic no. 31, atomic wt. 69.723.
[L. Gallia, France]

gallium (gal´ēəm),

n a metallic element with an atomic number of 31 and an atomic weight of 69.72. It is used in high-temperature thermometers, and its radioisotopes are used in total-body scanning procedures.


a chemical element, atomic number 31, atomic weight 69.72, symbol Ga. See Table 6.

a radioisotope of gallium having a half-life of 78.1 hours; used in the imaging of soft tissue tumors.
gallium nitrate
used in the treatment of hypercalcemia.
gallium scan
a nuclear medicine procedure using the radioisotope gallium-67 in the form of gallium citrate. Gallium has a high affinity for certain tumors and also for non-neoplastic lesions, such as abscesses. Gallium scans are particularly useful in the staging of lymphomas, and in localizing occult abscesses.
References in periodicals archive ?
Anterior and posterior whole-body gallium-67 citrate scintigraphy performed 48 hours after intravenous injection of 10 mCi of gallium-67 citrate revealed marked splenomegaly.
6) Gallium-67 scintigraphy has been used in monitoring the response to therapy and in the follow-up of patients with MCL; however, gallium scintigraphy has a 50% false-negative rate.
Gallium-67 scanning in the painful total hip replacement.
Gallium-67 imaging: A predictor of residual tumor viability and clinical outcome in patients with diffuse large-cell lymphoma.
These unique and proprietary chelators can be used to develop and commercialize radiopharmaceuticals based on metallic radioisotopes such as Gallium-67, Gallium-68, Indium-111 and others.
3-5) Several radiopharmaceuticals have been shown to have avid uptake by MFH, including Tc-99m methylene diphosphonate (MDP), gallium-67 (Ga-67) citrate, Tc-99m sestamibi, Tc-99m hexamethylpropyleneamine oxime (HMPAO), indium-111(In-111)-labeled leukocytes, Tc-99m sulfur colloid, and Tc-99m-labeled antifibrin monoclonal antibody.
Nuclear medicine imaging is frequently used in combination with CT and/or MRI for evaluation of children with neuroblastoma (I-123), lymphoma (gallium-67 citrate or fluorodeoxyglucose positron emission tomography [FDGPET]), osteomyelitis (technetium [Tc]-99m-methylene diphosphonate [MDP], gallium-67 citrate) and other neoplasms.