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Table 3 Comparison of Monitor Units, Normal Tissue Integral Dose, and V5% of Total Body between t-IMRT and t-VMAT for 20 patients with left-sided breast cancer

From: Left breast irradiation with tangential intensity modulated radiotherapy (t-IMRT) versus tangential volumetric modulated arc therapy (t-VMAT): trade-offs between secondary cancer induction risk and optimal target coverage

  t-IMRT t-VMAT Difference p-value
V5% total body (%) 36.02 ± 4.14 47.275 ± 5.89 −11.255 (−24%) 0.0007
NTID (cGy/cm3) 421.3 ± 52.07 523.26 ± 71.99 −102 (− 19%) 0.0000005
Monitor Units 348.155 ± 43.33 504.19 ± 35,39 −156.035 (−31%) 0.0000004