427 / 1224
Dokumentenname Datum Seite 34
Van de Water IJROBP 2014
3mm SM
4 Fx
% Px with 98%
coverage
w/o tracking
61 %
15 sec imaging
interval
91%
60 sec imaging
interval
96%
• Longer treatment
fractions with ↑ motion
• Less „smearing“ effect
• Smaller margins
Stereotactic Body Radiation Therapy:
Dosimetric impact of prostate motion
Increased relevance of prostate motion in SBRT
Increased imaging frequency does not necessarily improve
accuracy