A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Measurements of [C-11]CO2 in Exhaled Air with a Positron-sensitive Single-wire Proportional Counter after i.v. Injection of [C-11]Acetate
Tekijät: Sipila HT, Heselius SL, Kalliokoski MK, Kemppainen J, Minn H, Tolvanen T, Roivainen A
Julkaisuvuosi: 2011
Journal: IEEE conference record - Nuclear Science Symposium & Medical Imaging Conference
Tietokannassa oleva lehden nimi: 2011 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC)
Lehden akronyymi: IEEE NUCL SCI CONF R
Aloitussivu: 2397
Lopetussivu: 2399
Sivujen määrä: 3
ISSN: 1082-3654
Tiivistelmä
A positron-sensitive, large-window single-wire proportional counter was used for measurements of [C-11]CO2 in exhaled air after i.v. injection of [C-11] acetate. The performance of the proportional counter was studied using Geant4 and Garfield simulation tools as well as experimentally by injections of known amounts of radioactive gas into the measuring volume. The proportional counter was found to be sensitive enough for measuring the low concentrations of [C-11]CO2 in the air exhaled by patients after i.v. injection of an C-11-Iabelled radiopharmaceutical. The limit of detection was 200 Bq/L for [C-11]CO2.
A positron-sensitive, large-window single-wire proportional counter was used for measurements of [C-11]CO2 in exhaled air after i.v. injection of [C-11] acetate. The performance of the proportional counter was studied using Geant4 and Garfield simulation tools as well as experimentally by injections of known amounts of radioactive gas into the measuring volume. The proportional counter was found to be sensitive enough for measuring the low concentrations of [C-11]CO2 in the air exhaled by patients after i.v. injection of an C-11-Iabelled radiopharmaceutical. The limit of detection was 200 Bq/L for [C-11]CO2.
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