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. 2011 Nov;84(1007):967–996. doi: 10.1259/bjr/22373346

Figure 3.

Figure 3

Example of dose distributions in (a) IMRT and (b) VMAT plans for malignant glioma. The dose prescribed to the planning target volume (PTV) (red contour) is 60 Gy in 30 fractions. The 95% isodose (green line) is encompassing most of the PTV. There is compromise of PTV coverage to allow sparing of the optic nerves (dark blue contour) and brain stem (pink contour). Figures courtesy of Dr R Shaffer. Reprinted from Int J Radiat Oncology Biol Phys, Vol. 76, No.4, Shaffer R, Nichol AM, Vollans E, Fong M, Nakano S, Moiseenko V et al. A comparison of volumetric modulated arc therapy and conventional intensity-modulated radiotherapy for frontal and temporal high-grade gliomas, pp. 1177-1184, Copyright 2010, with permission from Elsevier [133].