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Table 4 The dosimetric comparisons of QI between HT and SaS-IMRT plans

From: Helical tomotherapy for single and multiple liver tumours

Variables of OARs

QI-1

QI-2

QI-whole cohort

QI of parallel organ

   

   Normal Liver

0.95 ± 0.20 (0.61-1.30)

0.90 ± 0.14 (0.76-1.21)

0.93 ± 0.17 (0.61-1.30)

QI of serial organ

   

   SC

0.86 ± 0.47 (0.16-1.45)

0.83 ± 0.30 (0.56-1.52)

0.85 ± 0.38 (0.16-1.52)

   GIS

0.91 ± 0.23 (0.64-1.36)

0.95 ± 0.12 (0.75-1.11)

0.93 ± 0.18 (0.64-1.36)

  1. Abbreviation: HT: Helical tomotherapy; SaS-IMRT: Step-and-shoot intensity-modulated radiotherapy; QI: Quality index; QI-1: QI-single tumour group; QI-2: QI-multiple tumours group; SC: Spinal cord; GIS: Gastrointestinal system (including stomach and small bowels);
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Radiation Oncology

ISSN: 1748-717X

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