Table 1.
Overview of dose-volume histograms with proton, IMRT and photon conventional planning for the PTV and OARs in the proton-photon planning comparison literature
| PTV/OARs Series (ref. no.) | V95% Protons (mean) | V95% IMRT (mean) | V95% Photons (mean) | Mean Dose (%) Protons | Mean Dose (%) IMRT | Mean Dose (%) Photons |
| PTV (breast only) | ||||||
| Lomax et al. [33] | 97.1 | 92.2 | 86.6 | |||
| Johansson et al. [34] | 94.0 | 85.9 | 88.8 | |||
| Fogliata et al. [38] | 99.8 | 95.5 | 92.2 | |||
| Heart | ||||||
| Lomax et al. [33] | 11.6 | 24.0 | 29.3 | |||
| Johansson et al. [34] | 21.0* | 41.0* | 61.0* | |||
| Fogliata et al. [38] | 4.4 | 5.6 | 5.0 | |||
| Lung (ipsilateral) | ||||||
| Lomax et al. [33] | 25.0 | 33.0 | 33.3 | |||
| Johansson et al. [34] | 1.0* | 18.0* | 29.0* | |||
| Fogliata et al. [38] | 7.0 | 17.1 | 22.5 |
IMRT, intensity modulated radiotherapy; PTV, planning target volume; OAR, organ at risk; V95%, volume (in percentage) receiving 95% of the prescribed dose.
*estimated % of the prescribed dose from the dose-volume histograms administered to the heart and lung