Reinvestigation of a physiological eluate of the 52Fe/52mMn generator.
We have achieved a significant step forward in the potential application of 52mMn2+ (T1/2 = 0.35 h, beta + = 97%) as a myocardial imaging agent with positron emission tomography (PET) by the introduction of a 5% (physiological) glucose solution as an eluent for the 52Fe/52mMn generator. Our experiments have demonstrated the favourable properties of a glucose solution with minimal breakthrough (< 0.3%) of 52Fe and yields of up to 90% 52mMn2+. Although it has been shown that lower 52Fe breakthrough is attainable using other eluents, due to the short half life of 52Fe (8.27 h) breakthrough up to 1% would not appear to significantly alter the efficacy of the 52mMn eluted with this 5% glucose solution. The primary advantage of this approach lies in its convenience of application, in that a 5% glucose solution may be administered directly into patients thereby circumventing the major problem of non-injectable eluates previously associated with this generator.
Bläuenstein
P
P
Division of Radiopharmacy, Paul Scherrer Institute, Switzerland.
Pellikka
R
R
Schubiger
P A
PA
D000837:Anion Exchange Resins / Q000737:chemistry; D005947:Glucose / Q000737:chemistry; D007504:Iron Radioisotopes / Q000737:chemistry*; D008345:Manganese / Q000737:chemistry*; D011868:Radioisotopes / Q000737:chemistry*; D011876:Radionuclide Generators; D012117:Resins, Synthetic; D012996:Solutions; D013644:Tartrates / Q000737:chemistry; D014055:Tomography, Emission-Computed
D000837:Anion Exchange Resins; D007504:Iron Radioisotopes; D011868:Radioisotopes; D012117:Resins, Synthetic; D012996:Solutions; D013644:Tartrates; C027972:Dowex; D008345:Manganese; D005947:Glucose; C029768:tartaric acid