Executive summary

Data of 140 dosimetry studies was analyzed. In the 105 non-SABR studies, the average MHD was similar between IMRT and 3DCRT (10.9 Gy versus 10.6 Gy) and lower with particle beam therapy (proton 7.0 Gy; carbon-ion 1.9 Gy). Active respiratory motion management reduced exposure (7.4 Gy versus 9.3 Gy). In the SABR 35 studies, MHD was 4.0 Gy (0.0-32.4). MHD was lowest for carbon ions (0.5 Gy) compared to other techniques. Active respiratory motion management reduced exposure (2.4 Gy versus 5.0 Gy). 

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