1490-1491 / 2605
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Discussion – Point III
Facts:
Mean Heart dose with protons almost always <2Gy
(based on supine, free breathing)
Photon dose can vary greatly and in many patients
might be 2Gy
(DIBH, Gated, prone etc.), but also might be >10 Gy
(some IMRT scenarios)
QUESTION: How to predict patient with mean heart
dose significantly greater than with protons)