Fig. 2
From: Radiotherapeutic treatment options for oligotopic malignant liver lesions
Dose distributions comparing the four radiotherapy techniques, if the standard single dose 20 Gy is given to a 2 cm lesion. The isodoses range from 150% (30 Gy, orange), 100% (20 Gy, white), 75% (15 Gy, yellow), 50% (green, 10 Gy), 25% (5 Gy, light blue), 10% (2 Gy, purple) to 5% (1 Gy, light green) according to the inserted scales. The ROIs are also shown such as liver (brown), stomach (blue) and kidneys (green, red). For such a small lesion HDR-brachytherapy is clearly superior in comparison to the external techniques