Table 3.
Organ at risk dose parameters after transposition of breathhold plan (BH) to second breathhold (RBH) and failure ot breathhold (FTBH) CT anatomy.
| ROI | BH | FTBH | RBH | ||||
|---|---|---|---|---|---|---|---|
| Dose (Gy) ± sd | Dose (Gy) ± sd | T-statistic | P-value | Dose (Gy) ± sd | T-statistic | P-value | |
| Heart | |||||||
| D02 | 14.09 ± 8.93 | 24.46 ± 7.16 | − 7.453 | < 0.001 | 14.21 ± 8.93 | − 0.528 | 0.604 |
| Dmean | 2.47 ± 0.97 | 3.96 ± 1.35 | − 7.509 | < 0.001 | 2.50 ± 0.98 | 1.076 | 0.296 |
| V5 | 7.79 ± 5.68 | 16.87 ± 7.68 | − 6.909 | < 0.001 | 7.97 ± 5.88 | − 1.147 | 0.265 |
| V10 | 3.62 ± 3.61 | 9.59 ± 5.59 | − 6.787 | < 0.001 | 3.76 ± 3.62 | − 1.656 | 0.114 |
| V20 | 1.36 ± 1.62 | 3.96 ± 2.82 | − 6.074 | < 0.001 | 1.39 ± 1.65 | − 0.369 | 0.716 |
| V30 | 0.45 ± 0.57 | 1.44 ± 1.25 | − 4.594 | < 0.001 | 0.45 ± 0.57 | 0.127 | 0.900 |
| LAD | |||||||
| D02 | 14.22 ± 10.16 | 21.22 ± 9.90 | − 3.952 | < 0.001 | 15.01 ± 9.80 | − 1.323 | 0.201 |
| Dmean | 5.99 ± 4.19 | 8.33 ± 4.08 | − 3.274 | 0.004 | 6.06 ± 3.94 | − 0.514 | 0.613 |
| V5 | 31.20 ± 25.57 | 48.45 ± 23.41 | − 4.048 | < 0.001 | 32.30 ± 24.50 | − 0.922 | 0.368 |
| V10 | 15.45 ± 20.14 | 27.50 ± 19.80 | − 3.018 | 0.012 | 16.18 ± 19.69 | − 0.861 | 0.400 |
| V20 | 6.18 ± 14.28 | 10.03 ± 13.76 | − 1.326 | 0.201 | 6.44 ± 13.22 | − 0.527 | 0.604 |
| V30 | 1.958 ± 5.30 | 2.52 ± 4.63 | − 0.716 | 0.483 | 1.42 ± 4.20 | − 1.784 | 0.090 |
| Left lung | |||||||
| D02 | 32.23 ± 2.03 | 33.36 ± 2.62 | − 3.083 | 0.006 | 32.09 ± 2.42 | 0.665 | 0.514 |
| Dmean | 4.46 ± 0.68 | 4.83 ± 0.68 | − 3.604 | 0.002 | 4.39 ± 0.71 | 1.538 | 0.141 |
| V5 | 21.67 ± 3.09 | 22.99 ± 3.06 | − 2.856 | 0.010 | 19.85 ± 5.45 | 2.266 | 0.035 |
| V10 | 14.13 ± 2.59 | 15.36 ± 2.69 | − 3.301 | 0.004 | 13.88 ± 2.68 | 1.331 | 0.199 |
| V20 | 7.31 ± 1.69 | 7.93 ± 1.71 | − 2.250 | 0.037 | 7.14 ± 1.63 | 1.277 | 0.217 |
| V30 | 2.86 ± 0.87 | 3.37 ± 1.13 | − 2.790 | 0.012 | 2.86 ± 0.97 | 0.082 | 0.936 |
| Right lung | |||||||
| D02 | 4.48 ± 3.12 | 4.44 ± 3.46 | 0.200 | 0.844 | 4.14 ± 3.04 | 2.351 | 0.030 |
| Dmean | 0.80 ± 0.54 | 0.87 ± 0.65 | − 1.962 | 0.065 | 0.76 ± 0.55 | 2.022 | 0.057 |
| V5 | 2.73 ± 4.44 | 3.06 ± 5.55 | − 0.949 | 0.355 | 2.46 ± 4.40 | 2.712 | 0.014 |
| V10 | 0.63 ± 0.83 | 0.61 ± 1.08 | 0.177 | 0.862 | 0.49 ± 0.81 | 1.837 | 0.082 |
| V20 | 0.06 ± 0.18 | 0.01 ± 0.03 | 1.342 | 0.195 | 0.01 ± 0.03 | 1.194 | 0.247 |
| V30 | 0.02 ± 0.07 | 0.00 ± 0.00 | 1.000 | 0.330 | 0.00 ± 0.00 | 1.000 | 0.330 |
| Thyroid | |||||||
| D02 | 18.91 ± 11.21 | 20.10 ± 14.87 | − 0.701 | 0.492 | 21.53 ± 12.09 | − 2.179 | 0.042 |
| Dmean | 3.38 ± 1.79 | 4.24 ± 3.25 | − 1.708 | 0.104 | 3.76 ± 2.08 | − 1.657 | 0.114 |
| V5 | 14.37 ± 9.27 | 17.28 ± 15.80 | − 1.298 | 0.210 | 16.18 ± 10.92 | − 1.360 | 0.190 |
| V10 | 7.72 ± 6.87 | 11.10 ± 11.90 | − 1.793 | 0.089 | 9.69 ± 7.92 | − 1.905 | 0.072 |
| V20 | 3.39 ± 4.48 | 6.04 ± 7.76 | − 1.967 | 0.064 | 4.55 ± 4.93 | − 2.034 | 0.056 |
| V30 | 1.27 ± 2.42 | 2.88 ± 4.69 | − 1.782 | 0.091 | 1.79 ± 2.61 | − 2.170 | 0.043 |
| Esophagus | |||||||
| D02 | 15.97 ± 4.64 | 22.37 ± 9.69 | − 3.354 | 0.003 | 16.60 ± 7.72 | − 0.547 | 0.591 |
| Dmean | 2.44 ± 0.77 | 3.41 ± 1.51 | − 3.485 | 0.002 | 2.71 ± 1.57 | − 1.179 | 0.253 |
| V5 | 13.00 ± 7.00 | 16.14 ± 7.98 | − 3.023 | 0.007 | 14.00 ± 10.97 | − 0.767 | 0.452 |
| V10 | 6.71 ± 4.33 | 10.54 ± 6.36 | − 3.411 | 0.003 | 7.82 ± 7.49 | − 1.111 | 0.281 |
| V20 | 1.10 ± 0.97 | 3.92 ± 4.08 | − 3.228 | 0.004 | 1.78 ± 2.59 | − 1.365 | 0.188 |
| V30 | 0.04 ± 0.08 | 1.36 ± 2.28 | − 2.584 | 0.018 | 0.34 ± 1.11 | − 1.216 | 0.239 |
| Contralateral breast | |||||||
| D02 | 5.28 ± 2.32 | 5.57 ± 2.62 | − 1.449 | 0.164 | 5.47 ± 2.48 | − 2.130 | 0.046 |
| Dmean | 1.11 ± 0.45 | 1.12 ± 0.48 | − 0.675 | 0.508 | 1.12 ± 0.46 | − 2.112 | 0.048 |
| V5 | 3.17 ± 2.88 | 3.23 ± 3.21 | − 0.328 | 0.746 | 3.23 ± 2.86 | − 0.898 | 0.381 |
| V10 | 0.034 ± 0.51 | 0.48 ± 0.67 | − 2.446 | 0.024 | 0.42 ± 0.62 | − 1.568 | 0.133 |
| V20 | 0.01 ± 0.03 | 0.02 ± 0.08 | − 1.231 | 0.233 | 0.01 ± 0.04 | − 1.000 | 0.330 |
Tests report comparisons of either FTBH or RBH to BH.
ROI region of interest, LAD left anterior descending coronary artery, sd standard deviation, Dxx minimum dose received by xx% of ROI volume, Vxx volume percentage receiving at least xx Gy, Dmean mean dose delivered to ROI volume.