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Fig. 4 | Radiation Oncology

Fig. 4

From: Characteristics of non-coplanar IMRT in the presence of target-embedded organs at risk

Fig. 4

Typical fluences for non-coplanar and coplanar techniques. (A) spherical OAR; (B) cylindrical OAR; (C) banana-shaped OAR; (a) Quasi-isotropic technique Q4π (16 beams), (b) beams arranged in two orthogonal planes 2P (15 beams); (c) coplanar technique Co (15 beams); (d) coplanar + 1 non-coplanar beam Co + 1 (16 beams); o: table angle = 0° ^ gantry angle = 0°; grey thick bordered box: table angle = 90°; black thin bordered box: table angle ≠ 90° ^ ≠ 0°

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