884 / 1116
7b. Radiation exposure
• Approx. 40% of the staff exposure in clinical PET/CT originates
from exposure during patient set-up (Seierstad et al, Radiat Prot
Dosimetry 2007)
• Complex positioning increases staff exposure
• Staff exposure should be reduced by
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Patient instructions before tracer injection
-
Adaptation of positioning aids before injection
-
Trained RT staff should be involved during set up to shorten the
time needed for patient positioning
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Use of motorized activity injectors
-
Use of new PET/CT technology that allows less activity to be
injected thanks to higher detector sensitivities
29 | D. Thorwarth | 09/2015
ESTRO teaching course on advanced imaging techniques