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Table 2 Target volume defined using preoperative prone MRI and postoperative prone CT (cm3)

From: A comparative study based on deformable image registration of the target volumes for external-beam partial breast irradiation defined using preoperative prone magnetic resonance imaging and postoperative prone computed tomography imaging

Target volume Median Range
GTVpreMR 4.64 1.34~19.06
CTVpreMR + 10 34.33 18.56~87.14
PTVpreMR + 15 71.05 41.48~150.57
CTVpreMR + 20 105.27 62.08~205.17
PTVpreMR + 25 162.00 92.27~260.95
GTVpostCT 17.22 9.04~42.46
CTVpostCT + 10 53.46 22.69~118.21
PTVpostCT + 15 118.01 79.29~227.08
  1. Abbreviations: GTV gross tumor volume, CTV clinical target volume, PTV planning target volume, TB tumor bed