Table 1 Measured values in the lung phantom. Average absolute volumes±SD of the ITV10, ITVMIP, ITVAIP in cm3,(relative volumes±SD as percentage of the calculated values -ITVcalc- in %), conformation numbers (CN) of ITVMIP and ITVAIP with the ITV10. n = number of movement patterns
From: Moving targets in 4D-CTs versus MIP and AIP: comparison of patients data to phantom data
Ø | n= | ITVcalc | ITV10 | ITVMIP | ITVAIP | CNMIP | CNAIP |
|---|---|---|---|---|---|---|---|
1.0 cm | 10 | 8.6 ± 1.3 cm3 | 9.3 ± 1.5 cm3 (109.9 ± 13.8%) | 8.3 ± 10.9 cm3 (97.4 ± 7.1%) | 7.3 ± 0.9 cm3 (86.2 ± 5.4%) | 0.77 ± 0.2 | 0.77 ± 0.1 |
2.0 cm | 10 | 50.3 ± 4.8 cm3 | 54.8 ± 4.2 cm3 (109.2 ± 5.8%) | 49.6 ± 3.8 cm3 (98.8 ± 3.0%) | 45.7 ± 4.1 cm3 (90.9 ± 3.6%) | 0.89 ± 0.0 | 0.89 ± 0.0 |
Total | 20 | 29.4 ± 21.7 cm3 | 32.1 ± 23.5 cm3 (109.5 ± 10.3%) | 28.9 ± 21.4 cm3 (98.1 ± 5.3%) | 26.5 ± 19.9 cm3 (88.6 ± 5.1%) | 0.79 ± 0.2 | 0.83 ± 0.1 |