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Comparison of 3D-CRT, IMRT, VMAT
locoregional RT including IMN
VMAT:
•
Improved / similar dose conformity
•
Reduction in mean heart and ipsilateral lung dose
•
Shorter delivery time
•
Reduced number of monitor units
•
However,
Slight increase in mean contralateral lung and breast dose
Volume of the heart receiving low dose was higher
Only mean heart dose reduction if 3.2 Gy or higher
Osman RO 2014, Popescu IJROBP 2010, Qi Med Dosimetry 2014