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Fig. 1 | BMC Cancer

Fig. 1

From: Benefit of dosimetry distribution for patients with multiple brain metastases from non-small cell lung cancer by a Cyberknife stereotactic radiosurgery (SRS) system

Fig. 1

Different CK SRS plans for the same patient with multiple brain metastases. The representative patient had axial images taken, (a) shown the location of the tumors (red line area), healthy brain tissue around the PTVs (green line area), the whole brain (blue line area) and OAR (Light blue line area was brainstem), (b) and (c) were single-lesion-plan (SLP) and multi-lesions-plan (MLP). The red and purple lines indicate the GTV and the PTV, respectively. Black and blue lines represent brain tissue and brainstem. Green contour was covered with 6-mm thick zone adjacent to the PTV. Isodose: Orange-Prescription dose, Red-100 and 90%, White-70%, Yellow-60%, Pink-50%, Purple-40%, Blue represents 10 to 30 from light to deep, respectively

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