Table 2.
Mean absolute percent difference for individual organs of three patient groupings, all (14 patients), heavy (5), and light (9) male patients as calculated for 80, 100, and 120 kVp RAO projections. Primary organs for RAO projects were considered to be the pericardium, stomach, pancreas, and liver.*
| Patient-matched | Reference hybrid | Reference stylized | |||||||
|---|---|---|---|---|---|---|---|---|---|
| All | Heavy | Light | All | Heavy | Light | All | Heavy | Light | |
| 80 kVp | |||||||||
| Lung | 40.8 | 44.1 | 39.0 | 41.0 | 53.9 | 33.8 | 55.9 | 46.3 | 61.2 |
| Pericardium* | 43.7 | 35.2 | 48.4 | 39.4 | 36.7 | 41.0 | 75.6 | 72.9 | 77.1 |
| Bladder | 85.1 | 157.1 | 45.1 | 98.9 | 203.2 | 40.9 | 240.1 | 456.1 | 120.2 |
| Stomach* | 32.0 | 43.3 | 25.8 | 36.9 | 50.0 | 29.6 | 56.6 | 108.0 | 28.0 |
| Pancreas* | 25.2 | 28.5 | 23.4 | 32.6 | 30.9 | 33.6 | 32.7 | 67.9 | 13.2 |
| Liver* | 29.2 | 32.7 | 27.3 | 51.8 | 96.3 | 27.0 | 46.7 | 36.9 | 52.1 |
| Spleen | 52.8 | 65.8 | 45.6 | 73.8 | 139.9 | 37.0 | 186.6 | 301.2 | 122.9 |
| Kidneys | 23.5 | 15.6 | 27.8 | 34.3 | 54.8 | 23.0 | 52.0 | 91.5 | 30.1 |
| Average | 41.6 | 52.8 | 35.3 | 51.1 | 83.2 | 33.2 | 93.3 | 147.6 | 63.1 |
| Primary | 32.5 | 34.9 | 31.2 | 40.2 | 53.5 | 32.8 | 52.9 | 71.4 | 42.6 |
| 100 kVp | |||||||||
| Lung | 39.1 | 41.5 | 37.7 | 37.7 | 47.1 | 32.5 | 53.8 | 44.6 | 58.9 |
| Pericardium* | 42.1 | 33.7 | 46.7 | 37.1 | 32.5 | 39.6 | 74.5 | 72.3 | 75.7 |
| Bladder | 76.5 | 137.1 | 42.8 | 86.4 | 173.0 | 38.4 | 188.7 | 348.9 | 99.7 |
| Stomach* | 29.2 | 39.7 | 23.4 | 33.6 | 44.7 | 27.4 | 49.7 | 92.6 | 25.9 |
| Pancreas* | 24.8 | 27.5 | 23.3 | 30.9 | 28.2 | 32.4 | 28.7 | 58.3 | 12.2 |
| Liver* | 27.6 | 30.9 | 25.7 | 47.4 | 86.1 | 25.9 | 46.5 | 36.1 | 52.3 |
| Spleen | 48.3 | 60.4 | 41.6 | 66.1 | 123.4 | 34.2 | 163.6 | 259.1 | 110.5 |
| Kidneys | 21.5 | 14.2 | 25.5 | 30.6 | 47.2 | 21.3 | 45.6 | 78.5 | 27.3 |
| Average | 38.6 | 48.1 | 33.3 | 46.2 | 72.8 | 31.5 | 81.4 | 123.8 | 57.8 |
| Primary | 30.9 | 32.9 | 29.8 | 37.2 | 47.9 | 31.3 | 49.8 | 64.8 | 41.5 |
| 120 kVp | |||||||||
| Lung | 38.2 | 40.2 | 37.1 | 36.2 | 44.1 | 31.8 | 52.8 | 43.8 | 57.9 |
| Pericardium* | 41.5 | 33.0 | 46.2 | 36.2 | 30.7 | 39.3 | 74.1 | 72.2 | 75.1 |
| Bladder | 74.3 | 136.0 | 40.0 | 83.3 | 166.7 | 37.0 | 172.4 | 317.0 | 92.0 |
| Stomach* | 28.0 | 37.9 | 22.5 | 32.0 | 42.2 | 26.4 | 46.6 | 85.8 | 24.8 |
| Pancreas* | 24.6 | 27.0 | 23.2 | 30.1 | 26.9 | 31.9 | 26.7 | 53.5 | 11.7 |
| Liver* | 26.8 | 30.0 | 25.1 | 45.5 | 81.6 | 25.5 | 46.5 | 35.8 | 52.4 |
| Spleen | 45.9 | 57.2 | 39.6 | 62.0 | 114.7 | 32.7 | 151.9 | 237.8 | 104.1 |
| Kidneys | 20.3 | 13.2 | 24.3 | 28.6 | 43.1 | 20.5 | 42.5 | 72.3 | 26.0 |
| Average | 37.5 | 46.8 | 32.3 | 44.2 | 68.7 | 30.6 | 76.7 | 114.8 | 55.5 |
| Primary | 30.2 | 32.0 | 29.3 | 36.0 | 45.3 | 30.7 | 48.4 | 61.8 | 41.0 |