Flattening-filter-free intensity modulated breath-hold image-guided SABR (Stereotactic ABlative Radiotherapy) can be applied in a 15-min treatment slot.

Boda-Heggemann, Judit; Mai, Sabine; Fleckenstein, Jens; Siebenlist, Kerstin; Simeonova, Anna; Ehmann, Michael; Steil, Volker; Wenz, Frederik et al. · Radiother Oncol · 2013

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Abstract

Hypofractionated image-guided stereotactic ablative radiotherapy (igSABR) is effective in small lung/liver lesions. Computer-assisted breath-hold reduces intrafraction motion but, as every gating/triggering strategy, reduces the duty cycle, resulting in long fraction times if combined with intensity-modulated radiotherapy (IMRT). 10 MV flattening-filter-free IMRT reduces daily fraction duration to <10 min for single doses of 5-20 Gy.

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