2017_IGRT course book

How much accuracy do we actually gain ??

Comparing no images at all to one image on first day: no reduction of the systematic uncertainty

1SD systematic [mm] lat lng vrt _________________________________________________________________________________________________________________ 1st fraction 3.7 3.3 3.4 tolerance of 5 mm no imaging 3.7 3.3 3.5 no tolerance with eNAL 1.5 1.6 1.6 3 mm tolerance with eNAL 1.1 1.0 1.0 2mm

Unpublished data, courtesy of M Josipovic