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Table 1 The mean percentages of minimum, maximum and mean planning target volume (PTV) doses ± standard deviation for all plans

From: A dosimetric comparison of different treatment plans of palliative spinal bone irradiation: analysis of dose coverage with respect to ICRU 50 report

 

Mean dose (range) % ± SD

 

Single field-ICRUrp

Single field-IBMCrp

Two opposed fields

Minimums

77.3 (72–81) ± 2.6

83.7 (74–89) ± 3.3

91 (90–95) ± 1.3

Maximums

122.2 (114–130) ± 4.3

133.9 (115–147) ± 7.1

108.8 (104–110) ± 1.3

Means

99.8 (94–107) ± 2.6

108.8 (95–116) ± 3.3

99.7(97–102) ± 1.3

  1. ICRUrp, the International Commission on Radiation Units and Measurements reference point; IBMCrp, the International Bone Metastasis Consensus Working Party reference point; SD, standard deviation.