Whole-brain perfusion imaging with 320-MDCT scanner: Reducing radiation dose by increasing sampling interval.
OBJECTIVE
The purpose of this study was to investigate whether perfusion CT values obtained with a reduced-dose imaging protocol on a 320-MDCT scanner are similar to those obtained with a standard protocol.


CONCLUSIONS
Similar perfusion values at one-half the radiation dose can be obtained with the alternative algorithm used in this study.
Shankar
Jai Jai Shiva
JJ
Department of Medical Imaging, QE II Hospital, Halifax, NS, Canada. shivajai1@gmail.com
Lum
Cheemun
C
Sharma
Mukul
M
D000328:Adult; D000368:Aged; D000465:Algorithms; D001822:Body Burden; D001927:Brain Diseases / Q000000981:diagnostic imaging*; D002560:Cerebrovascular Circulation; D003287:Contrast Media; D005260:Female; D006801:Humans; D007472:Iohexol; D008297:Male; D008875:Middle Aged; D011829:Radiation Dosage; D011857:Radiographic Image Interpretation, Computer-Assisted; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed / Q000379:methods*
D003287:Contrast Media; D007472:Iohexol