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Figure 3 | Radiation Oncology

Figure 3

From: Integration method of 3D MR spectroscopy into treatment planning system for glioblastoma IMRT dose painting with integrated simultaneous boost

Figure 3

Comparison of dose plans between 60-Gy 3D-CRT, 60-Gy IMRT and 72-Gy SIB-IMRT. 60-Gy 3D-CRT and 60-Gy IMRT plans (respectively Figures3a and 3b) have one PTV1 color-washed in blue. The integration of Cho/NAA abnormal volumes defines new target relative to MRSI, i.e. PTV2 color-washed in red (Figure 3c), PTV1 is the same. The isodoses of 68.4 Gy (thick red isodose) and 57 Gy (thick dark blue isodose) represent 95% of the prescribed dose respectively 72 Gy and 60 Gy on the PVT2 and PTV1. The isodose volumes of 54 Gy (pink), 50 Gy (green), 36 Gy (purple) and 18 Gy (light blue) for organs at risk sparing are also plotted.

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