Fig. 10From: Development of a novel delivery quality assurance system based on simultaneous verification of dose distribution and binary multi-leaf collimator opening in helical tomotherapyReconstruction of the IMRT sinogram. a Sinogram calculated by TPS, b Reconstructed sinogram. c Difference between the two sinograms, and the error of the LOT was − 3.9 ± 7.8%. d Histogram of errors and fractions of leaves, indicating that 80.8% of the leaves were detected within 5% of the errorBack to article page