Table 2.
The attenuation HU values of the adrenal masses on native phase and enhanced phases (arterial, venous, and delayed) CT imaging, absolute and relative washout, and 99mTc-HYNIC-TOC target/non-target ratio.
| MDCT Examination Phase | N | Mean | SD | Med | Min | Maks | |
|---|---|---|---|---|---|---|---|
| Native phase HU | nonfunctional | 29 | 12.29 | 17.70 | 7.00 | −13.00 | 44.00 |
| secretory | 21 | 11.63 | 19.96 | 11.00 | −17.00 | 50.00 | |
| Total | 50 | 12.04 | 18.39 | 9.50 | −17.00 | 50.00 | |
| Arterial phase HU | nonfunctional | 29 | 74.26 | 30.80 | 70.00 | 29.00 | 131.00 |
| secretory | 21 | 75.37 | 32.12 | 69.00 | 30.00 | 126.00 | |
| Total | 50 | 74.68 | 30.98 | 69.50 | 29.00 | 131.00 | |
| Venous phase HU | nonfunctional | 29 | 85.9 | 26.77 | 79.00 | 40.00 | 148.00 |
| secretory | 21 | 89.74 | 25.12 | 92.00 | 35.00 | 122.00 | |
| Total | 50 | 87.36 | 25.97 | 83.50 | 35.00 | 148.00 | |
| Delayed phase HU | nonfunctional | 29 | 51.03 | 18.23 | 50.00 | 21.00 | 91.00 |
| secretory | 21 | 41.05 | 15.93 | 37.00 | 17.00 | 72.00 | |
| Total | 50 | 47.24 | 17.90 | 43.00 | 17.00 | 91.00 | |
| Relative washout | nonfunctional | 29 | 41.29% | 8.97% | 42.00% | 20.00% | 60.00% |
| secretory | 21 | 52.89% | 10.43% | 51.00% | 34.00% | 68.00% | |
| Total | 50 | 45.70% | 11.03% | 44.50% | 20.00% | 68.00% | |
| Absolute washout | nonfunctional | 29 | 47.77% | 7.18% | 48.00% | 31.00% | 59.00% |
| secretory | 21 | 64.32% | 6.69% | 62.00% | 56.00% | 82.00% | |
| Total | 50 | 54.06% | 10.67% | 55.00% | 31.00% | 82.00% | |
| 99mTc-HYNIC-TOC target/non-target ratio | nonfunctional | 29 | 15.9 | 6.39 | 15.30 | 5.99 | 29.66 |
| secretory | 21 | 23.76 | 15.71 | 17.05 | 9.69 | 62.26 | |
| Total | 50 | 18.89 | 11.42 | 16.27 | 5.99 | 62.26 | |