Table 3.
Exponential relationship of organ dose with body size: organ dose (d) = exp (αorgand + βorgan) with d the average chest diameter defined in Sec. 2D. PA = posteroanterior, AP = anteroposterior and LAT = lateral.
| Fitting parameter |
||||
|---|---|---|---|---|
| Organ | Protocol | αorgan (cm−1) | βorgan | R2 |
| Lungs | AP | −0.039 | −1.82 | 0.471 |
| PA + left LAT | −0.037 | −1.36 | 0.590 | |
| Tomosynthesis | −0.035 | −2.01 | 0.596 | |
| CT | −0.056 | 3.67 | 0.602 | |
| Breasts | AP | −0.008 | −2.26 | 0.008 |
| PA + left LAT | −0.022 | −2.17 | 0.201 | |
| Tomosynthesis | −0.096 | −1.65 | 0.613 | |
| CT | −0.039 | 3.11 | 0.261 | |
| Liver | AP | −0.060 | −1.39 | 0.616 |
| PA + left LAT | −0.052 | −1.86 | 0.509 | |
| Tomosynthesis | −0.048 | −2.28 | 0.412 | |
| CT | −0.063 | 3.47 | 0.403 | |