Table 5 Analysis of vascularization of benign thyroid nodules and thyroid cancers in 3D power Doppler ultrasound evaluated with thin-slice rendering.
| Â | Â | BENIGN Observer 1 | BENIGN Observer 2 | CANCER Observer 1 | CANCER Observer 2 |
|---|---|---|---|---|---|
PERIPHERAL VESSELS % of the circumference of the nodule | Â | Â | Â | Â | |
0 | 0 - 10 | 4 | 2 | 4 | 4 |
1 | 11-25 | 4 | 5 | 1 | 1 |
2 | 26-50 | 10 | 10 | 4 | 4 |
3 | 51-75 | 7 | 10 | 4 | 3 |
4 | 76-100 | 30 | 28 | 3 | 4 |
CENTRAL VESSELS % of the area of the nodule | Â | Â | Â | Â | |
0 | 0 | 8 | 10 | 2 | 2 |
1 | 1-25 | 13 | 12 | 8 | 9 |
2 | 26-50 | 8 | 7 | 1 | 0 |
3 | 51-75 | 13 | 10 | 2 | 1 |
4 | 76-100 | 13 | 16 | 3 | 4 |
ALIGNMENT OF CENTRAL VESSELS: | Â | Â | Â | Â | |
Regular | Â | 38 | 35 | 5 | 6 |
Chaotic | Â | 5 | 5 | 3 | 1 |
Not possible to define | Â | 12 | 15 | 8 | 9 |