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Table 2 Whole abdominal irradiation: plan characteristics for Reg 2.5, Reg 5.0 (“regular” delivery with a 2.5 cm and 5.0 cm field width) and DJDC 5.0 (dynamic jaw/dynamic couch delivery with a 5.0 cm maximum field width)

From: Accelerated large volume irradiation with dynamic Jaw/Dynamic Couch Helical Tomotherapy

   Reg 2.5 Reg 5.0 DJDC 5.0
total PTV CI95 1.11 ± 0.08 1.13 ± 0.04 1.16 ± 0.03
  TV95% 0.925 ± 0.013 0.887 ± 0.007 0.931 ± 0.022
right kidney mean (Gy) 11.9 ± 0.8 12.3 ± 1.1 13.0 ± 0.9
left kidney mean (Gy) 10.7 ± 0.8 11.7 ± 1.0 11.5 ± 0.8
bone mean (Gy) 10.8 ± 1.1 12.9 ± 1.0 11.7 ± 0.8
spinal cord max (Gy) 12.7 ± 2.7 12.5 ± 1.1 13.6 ± 2.7
heart mean (Gy) 9.5 ± 2.4 10.6 ± 2.7 10.5 ± 1.5
liver mean (Gy) 22.3 ± 0.9 23.5 ± 0.5 23.7 ± 0.9
integral dose (Gy x l) 369.3 ± 67.8 496.2 ± 92.3 382.9 ± 52.4
  1. Target coverage and bone and liver sparing were significantly better with Reg 2.5 (bold print). Reg 5.0 resulted in a significantly higher integral dose than Reg 2.5 and DJDC 5.0 (bold print).