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Table 2 Comparison of IC doses in four algorithms with the measeured doses

From: Evaluation of heterogeneity dose distributions for Stereotactic Radiotherapy (SRT): comparison of commercially available Monte Carlo dose calculation with other algorithms

  Pinpoint chamber SHM error CCC error SP error MC error
  [cGy] [cGy] [%] [cGy] [%] [cGy] [%] [cGy] [%]
Single Beam (3 × 3 cm2) in Water Phantoma) 124.6 124.0 0.48 124.4 0.16 125.5 -0.72 123.9 0.56
Eight Beams (4 × 4 cm2) in inhomogeneous Phantomb) 200.9 209.6 -4.33 199.9 0.50 200.6 0.15 201.7 -0.40
  1. Abbreviations: SHM, scatter homogeneous mode, CCC, C.C.Convolution, SP, Superposition, MC, Monte Carlo.
  2. a) Single delivery of 200MU from gantry angle of 0 degree.
  3. b) Static 8 beams; the gantry, couch angles and MU were 180° + 0° 33.5MU, 260° + 0° 44.3MU, 340° + 0° 33.6MU, 30° + 40° 34.1MU, 35° + 320° 35.3MU, 320° + 320° 36.1MU, 30° + 90° 34.4MU, 330° + 90° 34.5MU, respectively. The MU employed here has equal weights in IC dose of CCC in inhomogeneous phantom.