TABLE IV.
The AUCs for all dosimetric systems and analysis techniques, with accompanying bootstrapped 95% confidence intervals. The MapCheck gamma analysis was performed in both the snc patient software (snc) and DL. All film analyses were performed in OmniPro I’mRT software. In the column labeled IMRT QA method, the delivery technique is listed first (for MapCheck irradiations), then the type of dosimeter used, and finally the software used for the gamma analysis (when relevant). The devices analyzed with gamma analysis are grouped by their dose difference and distance to agreement criteria and ordered by their AUC within this grouping.
| IMRT QA method | AUC | C.I. |
|---|---|---|
| cc04 ion chamber | 0.94 | (0.82–1) |
| 2%/2 mm | ||
| AP composite MapCheck (DL) | 0.85 | (0.67–0.99) |
| ArcCheck (snc) | 0.81 | (0.61–0.95) |
| AP field-by-field MapCheck (DL) | 0.80 | (0.61–0.98) |
| AP composite MapCheck (snc) | 0.80 | (0.6–0.95) |
| EDR2 film (OmniPro) | 0.76 | (0.55–0.93) |
| Planned angle MapCheck (snc) | 0.65 | (0.41–0.85) |
| AP field-by-field MapCheck (snc) | 0.61 | (0.36–0.85) |
| Planned angle MapCheck (DL) | 0.59 | (0.35–0.83) |
| 3%/3 mm | ||
| AP composite MapCheck (DL) | 0.89 | (0.73–1) |
| AP composite MapCheck (snc) | 0.85 | (0.66–1) |
| EDR2 film (OmniPro) | 0.84 | (0.66–0.97) |
| ArcCheck (snc) | 0.84 | (0.67–0.99) |
| AP field-by-field MapCheck (DL) | 0.76 | (0.51–0.97) |
| Planned angle MapCheck (snc) | 0.69 | (0.44–0.89) |
| AP field-by-field MapCheck (snc) | 0.59 | (0.35–0.84) |
| Planned angle MapCheck (DL) | 0.58 | (0.33–0.81) |
| 5%/3 mm | ||
| AP composite MapCheck (DL) | 0.93 | (0.8–1) |
| ArcCheck (snc) | 0.87 | (0.71–0.99) |
| EDR2 film (OmniPro) | 0.84 | (0.66–1) |
| AP composite MapCheck (snc) | 0.78 | (0.57–0.92) |
| Planned angle MapCheck (snc) | 0.75 | (0.51–0.94) |
| Planned angle MapCheck (DL) | 0.67 | (0.44–0.89) |
| AP field-by-field MapCheck (DL) | 0.65 | (0.38–0.9) |
| AP field-by-field MapCheck (snc) | 0.55 | (0.31–0.79) |