Fig. 2From: Optimizing the prescription isodose level in stereotactic volumetric-modulated arc radiotherapy of lung lesions as a potential for dose de-escalation(Left) shows the normal lung volume between the planning target volume (PTV) and the gross tumor volume (GTV) receiving at least 54 Gy (V54Gy), and (right) the mean dose to this volume for individual lesions. Lesions are sorted according to sizeBack to article page