Fig. 1.

One axial slice of the Catphan® 600 phantom sensitometry module: (a) CO-TV reconstruction from kV scatter-contaminated projection data (kV-CBCT); (b) CO-TV reconstruction from kV-MV scatter-contaminated CBCT/VAMT projection data (kVMV-CBCT); (c) CO-TV reconstructed from kV-MV scatter-corrected moving blocker CBCT/VMAT projection data (mb-kVMV-CBCT); (d) benchmark fan-beam MDCT image; (e) standard clinic kV CBCT image (cCBCT). Density inserts labeled in (a) were used for evaluating HU accuracy. Display widow [−600, 600] HU.