Fig. 4 | Scientific Reports

Fig. 4

From: Impact of four-dimensional computed tomography phase number on target coverage of four-dimensional robustly optimized lung stereotactic body radiotherapy

Fig. 4

Schematic view of respiratory phase and representative CT images. (a) Correspondence diagram for the respiration phase of 4D-CT. (b) Axial plane image of the maximum exhale phase in 4D-CT for 10 patients, showing lung tumors (gross tumor volume) delineated in yellow. GTV, gross tumor volume; ROI, region of interest.

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