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Table 5 A comparison of the dose deviations (%) of six DVH-based dose parameters obtained from the plan and with those estimated by the 3DVH software

From: Comparison of dose calculations between pencil-beam and Monte Carlo algorithms of the iPlan RT in arc therapy using a homogenous phantom with 3DVH software

Dose deviation

Target ROI

Periphery ROI

Entire area

PBC

MCC

PBC

MCC

PBC

MCC

Max dose

1%

4%

1%

4%

1%

4%

Mean dose

2%

1%

4%

0%

4%

0%

D99

3%

1%

0%

0%

0%

0%

D90

3%

1%

8%

0%

8%

0%

D50

2%

1%

2%

1%

1%

1%

D1

1%

2%

6%

1%

2%

1%

  1. Abbreviations: PBC Pencil-beam calculation, MCC Monte Carlo calculation, ROI region of interest, D99 dose covering 99% of the volume, D90 dose covering 90% of the volume, D50 dose covering 50% of the volume, D1 dose covering 1% of the volume.
  2. The estimated dose is calculated based on the ArcCHECK measured data.