Table 1.
WEPL and SPR differences for each individual patient. The WEPL difference is given as the RMS over all rays in absolute values (mm) (2nd column) and relative to the RMS WEPL in the DECT-based SPR map (3rd column) (%), as well as the 2.5% to 97.5% percentiles of the absolute WEPL difference (4th column). No WEPL differences are reported for Group B due to the motion artifacts. The SPR difference is given for ROIs in the cranium bone, brain and eyes (5th–7th column). The SPR difference is given relative to the DECT-based SPR (%) along with the standard error of the mean (SEM) in parenthesis (%).
| WEPL difference |
SPR difference |
|||||
|---|---|---|---|---|---|---|
| Patient No. | Abs. diff. (mm) | Rel. diff. (%) | Percentiles [2.5%,97.5%] (mm) | Cranium (%) | Brain (%) | Eyes (%) |
| Patient subgroup A | ||||||
| 1 | 1.3 | 1.0 | [−3.7,0.3] | 0.2 (0.1) | −0.5 (0.02) | −1.5 (0.1) |
| 2 | 1.8 | 1.4 | [−4.9,0.04] | −0.2 (0.1) | −0.8 (0.02) | −1.4 (0.1) |
| 3 | 2.2 | 1.7 | [−5.8,−0.1] | −0.4 (0.1) | −1.5 (0.02) | −1.7 (0.1) |
| 4 | 2.2 | 1.6 | [−5.1,0.03] | −0.2 (0.05) | −1.2 (0.02) | −0.7 (0.2) |
| 5 | 1.9 | 1.4 | [−4.5,0.02] | −0.4 (0.05) | −1.4 (0.02) | −1.1 (0.2) |
| 6 | 1.8 | 1.2 | [−3.9,0.02] | −0.2 (0.05) | −1.4 (0.03) | −1.1 (0.1) |
| 7 | 1.9 | 1.5 | [−4.7,0.02] | −0.2 (0.1) | −1.4 (0.03) | −0.8 (0.2) |
| 8 | 2.0 | 1.5 | [−4.5,0.01] | −0.1 (0.1) | −1.4 (0.02) | −1.0 (0.2) |
| Median | 1.9 | 1.5 | [−4.6,0.02] | −0.2 (0.1) | −1.4 (0.02) | −1.1 (0.2) |
| Patient subgroup B | ||||||
| 9 | −1.5 (0.1) | −0.8 (0.03) | −2.0 (0.1) | |||
| 10 | −1.0 (0.1) | −0.9 (0.02) | −2.6 (0.1) | |||
| 11 | −0.4 (0.1) | −0.9 (0.03) | −2.4 (0.2) | |||
| 12 | −0.8 (0.1) | −0.9 (0.03) | −2.7 (0.2) | |||
| 13 | −1.0 (0.1) | −0.8 (0.03) | −2.6 (0.2) | |||
| 14 | −0.4 (0.1) | −1.2 (0.03) | −2.5 (0.2) | |||
| Median | −0.9 (0.1) | −0.9 (0.03) | −2.6 (0.2) | |||