Fig. 1From: Improve the dosimetric outcome in bilateral head and neck cancer (HNC) treatment using spot-scanning proton arc (SPArc) therapy: a feasibility studyThe comparison of (a) dose distributions of SPArc and IMPT plans for patient 8 (b) the corresponding DVH as an example (SPArc:solid line, IMPT:dash line). The dot as 1.8Gy represents the intersection of external between SPArc and IMPT planBack to article page