Fig. 9From: A method for in vivo treatment verification of IMRT and VMAT based on electronic portal imaging deviceThe transmission image calculated (blue dotted line) from the fluence map, the measured image (blue solid line), and the relative error (red point). a, b Are the crossline and inline directions calculated using the in-axis parameters, respectively. c, d Are the crossline and inline directions calculated using the off-axis parameters, respectivelyBack to article page