J Med Phys Close
 

Figure 7: IMRT verification of a head and neck patient, which requires a large region of interest for dose verification. 2D dose profile (a) of large region, viz., 2437 cm2, was reconstructed from two 2D dose profiles (b) and (c) of area 2424 cm2 acquired by positioning the isocenter at 6.5 cm from matrix center. (d) 1D profile comparison between TPS and processed large region 2D array matrix data. (e) the gamma histogram for comparison of 2D dose profiles between TPS data and processed large region 2D array data using gamma evaluation (delta distance = 3 mm and delta dose = 3%) method

Figure 7: IMRT verification of a head and neck patient, which requires a large region of interest for dose verification. 2D dose profile (a) of large region, viz., 2437 cm2, was reconstructed from two 2D dose profiles (b) and (c) of area 2424 cm2 acquired by positioning the isocenter at  6.5 cm from matrix center. (d) 1D profile comparison between TPS and processed large region 2D array matrix data. (e) the gamma histogram for comparison of 2D dose profiles between TPS data and processed large region 2D array data using gamma evaluation (delta distance = 3 mm and delta dose = 3%) method