Prediction of boron concentrations in blood from patients on boron neutron capture therapy.
BACKGROUND
In boron neutron capture therapy, blood boron concentration is the key factor to calculate radiation dose, however, blood sampling is difficult during neutron irradiation.


METHODS
The prediction of blood boron concentrations for BNCT treatment planning has been prospectively investigated using patient data obtained at first craniotomy after the infusion of a low dose of sodium undecahydroclosododecaborate.


RESULTS
The boron biodistribution data showed a biexponential pharmacokinetic profile. If the final boron concentration at 6 or 9 hours after the end of the infusion is within the 95% confidence interval of the prediction, direct prediction from biexponential fit will reduce the error of blood boron concentrations during irradiation to around 6%.


CONCLUSIONS
Actual boron concentrations during BNCT were reasonably and accurately predictable from the test data.
Department of Neurosurgery, University of Tsukuba, Tsukuba, Ibaraki, 305-8575, Japan.
Yasushi
Y
Shibata
Akira
A
Matsumura
Tetsuya
T
Yamamoto
Hiroyoshi
H
Akutsu
Susumu
S
Yasuda
Kei
K
Nakai
Tadao
T
Nose
Kazuyoshi
K
Yamamoto
Hiroaki
H
Kumada
Naohiko
N
Hori
Shinichi
S
Ohtake
D000328:Adult; D000368:Aged; D001254:Astrocytoma / Q000097:blood* / Q000532:radiotherapy / Q000601:surgery; D001895:Boron / Q000097:blood* / Q000493:pharmacokinetics; D016754:Boron Neutron Capture Therapy; D001932:Brain Neoplasms / Q000097:blood* / Q000532:radiotherapy / Q000601:surgery; D003131:Combined Modality Therapy; D005260:Female; D005909:Glioblastoma / Q000097:blood* / Q000601:surgery / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D014018:Tissue Distribution
D001895:Boron