[Underlying examination in the imaging of 89Sr bremsstrahlung radiation].
The radiopharmaceutical strontium chloride ((89)Sr) has been released as a new means of pain relief for painful bone metastasis in cancer patients. Because (89)Sr is a pure beta-emitting nuclide, it was considered difficult to know its distribution in the body from outside. Imaging with a gamma camera using bremsstrahlung radiation has been reported as one method, but there has been little detailed basic examination. We examined the optimal energy window and collimator when imaging with a gamma camera using bremsstrahlung radiation produced from (89)Sr beta rays. The results showed that setting the energy window at 75 keV, which is the peak formed by the characteristic X-ray of lead that is produced by the interaction of bremsstrahlung radiation and lead, is optimal for imaging. Also important are the material of the collimator and the use of an MELP collimator.
Oda
Hitomi
H
Hyogo Cancer Center.
Hara
Hideyuki
H
Ueda
Osamu
O
Kawamata
Hiroaki
H
Sakai
Hiroto
H
Katou
Yasuaki
Y
Kida
Tooru
T
Kubota
Masahiro
M
D015902:Gamma Cameras; D006801:Humans; D008297:Male; D008875:Middle Aged; D019275:Radiopharmaceuticals / Q000378:metabolism*; D013324:Strontium / Q000378:metabolism; D013326:Strontium Radioisotopes / Q000378:metabolism*; D014018:Tissue Distribution
D019275:Radiopharmaceuticals; D013326:Strontium Radioisotopes; C025700:strontium chloride; D013324:Strontium