Actual versus Calculated CT scan contrast agent doses
This page shows the data that was graphed. In particular, it shows the estimated mean Body Surface Area (BSA) of patients in each weight category, and below that, it shows the actual doses given, compared with theoretical doses calculated from formulas.
| Weight Category | < 38 kg | 38-47 kg | 48-63 kg | 64-77 kg | 78-97 kg | 98-117 kg | 118 + kg |
|---|---|---|---|---|---|---|---|
| Mean weight | 29.6 | 44.2 | 56.8 | 70.6 | 86.0 | 105.2 | 122.9 |
| Mean BSA (DuBois method) |
1.045 | 1.370 | 1.603 | 1.818 | 2.015 | 2.215 | 2.371 |
| Mean BSA (Mosteller method) |
1.045 | 1.372 | 1.613 | 1.841 | 2.064 | 2.313 | 2.535 |
| Actual Dose given | 60ml | 70ml | 80ml | 100ml | 120ml | 140ml | 160ml |
| If dose were 1.416 ml per kg | 41.9ml | 62.6ml | 80.5ml | 100ml | 121.8ml | 149.0ml | 174.1ml |
| If dose were 55.02ml per m² (BSA using DuBois method) |
57.5ml | 75.4ml | 88.2ml | 100ml | 110.9ml | 121.9ml | 130.5ml |
| If dose were 54.30 ml per m² (BSA using Mosteller method) |
56.7ml | 74.5ml | 87.6ml | 100ml | 112.1ml | 125.6ml | 137.7ml |
back to body weight derived CT scan dose discussion
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