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Table 3 Dose around the PTV

From: Cerebral cortex dose sparing for glioblastoma patients: IMRT versus robust treatment planning

 

Average Dose in Gy

PTV + 10

PTV + 20

CortexPTV + 20

IMRT

56.1 ± 0.9

44.9 ± 3.5

41.4 ± 4.9

IMRT with CS

53.5 ± 0.7

41.3 ± 2.8

33.4 ± 3.6

Robust

53.9 ± 1.5

42.1 ± 3.9

37.2 ± 4.9

Robust with CS

51.7 ± 0.9

39.4 ± 3.1

31.3 ± 3.6

  1. Average dose for the patient cohort around the PTV within a distance of 10 mm (PTV + 10) and 20 mm (PTV + 20) as surrogate for the dose gradient in Gy plus minus one standard deviation. For the evaluation of cortex sparing the values of CortexPTV + 20 indicate the average dose to the cortex in a 20 mm distance from the PTV for IMRT and robust plans with and without cortex sparing (CS)
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Radiation Oncology

ISSN: 1748-717X

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