Flipping Book - ATP

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

Reduces random + systematic errors

PTV = 2.5

∑

+ 0.7

σ

}

hypo-fractionation

∑

σ

~ 4 to 1 ratio

•

Reduction of PTV margins

•

Increase dose/fraction

•

Reduced Tx course

van Herk et al, IJROBP 2000;47:1121-1135