Table 1 Patient BMI and body composition variables are summarised according to quartile of dose length product
From: Body composition determinants of radiation dose during abdominopelvic CT
Quartile (DLP – mGy.cm) | I (<358.6) | II (358.6–431.6) | III (431.6–640.9) | IV (>640.9) | Correlation with DLP |
|---|---|---|---|---|---|
BMI (kg/m2) | 21.3 ± 3 | 24.2 ± 2 | 28 ± 3 | 32 ± 4.8 | 0.797** |
Total adipose tissue (TAT) | 5725 ± 3354 | 8834 ± 3136 | 11,554 ± 2883 | 17,813 ± 4864 | 0.832** |
Muscle volume (MV) | 7368 ± 1378 | 8033 ± 1585 | 10,329 ± 2428 | 11,818 ± 2219 | 0.660** |
Bone volume (BV) | 1197 ± 233 | 1375 ± 281 | 1602 ± 341 | 1605 ± 326 | 0.362** |
Liver volume (LV) | 1338 ± 309 | 1392 ± 357 | 1751 ± 423 | 1903 ± 495 | 0.507** |
Right kidney volume (RKV) | 127 ± 39 | 143 ± 36 | 169 ± 46 | 175 ± 47 | 0.393** |
Left kidney volume (LKV) | 130 ± 28 | 147 ± 41 | 169 ± 41 | 176 ± 46 | 0.399** |
Spleen volume (SV) | 191 ± 250 | 198 ± 144 | 259 ± 171 | 270 ± 205 | 0.142* |