Physics Bucharest 2017

Limitations of margin recipes

According to ‘margin recipe’ bladder tumour at the dome [Van Herk equation 2.5 ∑ + 0.7  ] = 4cm margin

Oversimplification ?applicability to bladder if derived from solid organ comparison with direct empirical approaches up 9mm difference

Muren LP, Smaaland R, Dahl O: Organ motion, set-up variation and treatment margins in radical radiotherapy of urinary bladder cancer. Radiother Oncol 2003, 69(3):291-304 .

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