Establishing a quality control program for an automated dosimetry system.
Automatic dosimetry systems can provide instantaneous dose and dose-rate information during fluoroscopic procedures as well as long-term records of patient doses. For this information to be useful, it is necessary that the accuracy of such systems be maintained through a rigorous quality control program. Daily and weekly quality control checks were performed on a PEMNET automated dosimetry system to determine its stability and the value of such tests in a quality control program. Weekly tests included monitoring the accuracy of the measured doses under a variety of conditions. The results of the tests indicate possible improvements in test methodology and real and potential sources of system failure and provide a statistical basis for setting quality control limits for future system monitoring.
Li
S
S
Department of Radiology, University of Minnesota, Minneapolis 55455, USA.
O'Dea
T J
TJ
Geise
R A
RA
D055592:Biophysical Phenomena; D001703:Biophysics; D005471:Fluoroscopy / Q000009:adverse effects / Q000592:standards*; D006801:Humans; D019047:Phantoms, Imaging; D011786:Quality Control; D011832:Radiation Injuries / Q000517:prevention & control; D011874:Radiometry / Q000592:standards*; D012867:Skin / Q000293:injuries / Q000528:radiation effects; D014159:Transducers; D014465:Ultrasonics