Fig. 1From: Stereotactic body radiation therapy using a respiratory-gated volumetric-modulated arc therapy technique for small hepatocellular carcinomaSBRT using a respiratory-gated VMAT technique. A representative patient with HCC (located in segment 7) who achieved complete response at 6 months after SBRT. CT scans in arterial phase before SBRT (a), 1 month (b), 3 months (c), and 6 months (d) after SBRT, respectively. CT scans for VMAT plan which shows 2 arc beams (e) and isodose lines in axial (f), coronal (g), and sagittal (h) views. The red line is the gross tumor volume, and yellow, green, and blue lines are the 97, 70, and 30% isodose lines, respectivelyBack to article page