Table 7.
Differences in DVH parameters for different catheter reconstruction techniques relative to the SPS- based plan for clinical VeneziaTM plans without interstitial needles (P1) and with interstitial needles (P2)
| Centerline (%) | CT wire (%) | Manufacturer’s model (%) | |||||
|---|---|---|---|---|---|---|---|
| P1 | P2 | P1 | P2 | P1 | P2 | ||
| HR-CTV | Dmin | 1.5 | 5.3 | –4.0 | 0.8 | 1.8 | 1.6 |
| D90% | –0.8 | –0.4 | –1.0 | 0.5 | –0.8 | 0.5 | |
| Bladder | D2cm3 | –0.8 | 2.8 | –0.2 | 0.2 | –0.2 | 0.0 |
| Bowel | D2cm3 | –1.6 | –2.7 | 0.0 | 0.0 | 0.5 | –2.0 |
| Rectum | D2cm3 | –1.4 | –2.3 | –0.5 | –0.3 | –1.8 | –0.8 |
| Sigmoid | D2cm3 | 3.6 | –3.4 | 0.0 | 0.0 | 2.4 | –0.7 |
| Body | V200% | –2.0 | –3.9 | 2.0 | 1.5 | 2.0 | –1.5 |
| Vagina | PIBS+2 cm | –0.7 | –0.2 | –0.4 | 1.1 | –0.3 | –0.1 |
| PIBS | –1.3 | –1.0 | 0.1 | 1.4 | –0.6 | 0.6 | |
| PIBS–2 cm | –0.2 | –0.1 | –0.5 | 2.2 | –0.2 | –0.2 | |
| Dsurf | –4.7 | 3.1 | –2.1 | 3.1 | –4.4 | 1.9 | |
| D5mm | –3.6 | 1.3 | –0.7 | 1.4 | –2.8 | 0.8 | |