Fig. 1From: CT ventilation image-guided helical Tomotherapy at sparing functional lungs for locally advanced lung cancer: analysis of dose-function metrics and the impact on pulmonary toxicityFlowchart of ventilation-map guided HT plan in this work. A 4DCT acquisition; B Lung segmentation; C Deformable Image Registration; (D) Ventilation map calculation; E Functional lung ROIs definition; F Anatomical and ventilation map-guided functional HT plan; G Dose-volume histogram (DVH), dose-function histogram (DFH) and RP-risk analysisBack to article page