Table 2 Measured ultrasound parameters irradiated and non-irradiated side
Parameter | Location | Time point | Irradiated side | n | Control side | n | P value |
|---|---|---|---|---|---|---|---|
Plaque | CCA/ICA | n/a | 7 | 26 | 3 | 26 | 0.291 |
IMT (mm) | Distal CCA | Diastole | 0.54 [0.50–0.61] | 26 | 0.50 [0.44–0.54] | 26 | 0.001* |
ICA | 0.45 [0.44–0.46] | 26 | 0.45 [0.44–0.47] | 23 | 0.59 | ||
PWV (m/s) | Mid-CCA | Begin-systole | 4.89 [4.22–5.75] | 25 | 4.56 [3.78–5.58] | 22 | 0.36 |
End-systole | 6.77 [5.82–7.78] | 24 | 6.44 [5.16–6.97] | 22 | 0.24 | ||
SWV (m/s) | Proximal CCA | Averaged over cardiac cycle | A: 4.13 [3.56–4.61] | 26 | A: 4.17 [3.91–4.39] | 25 | 0.48 |
P: 4.30 [3.88–4.71] | 26 | P: 4.06 [3.84–4.57] | 26 | 0.42 | |||
Mid-CCA | A: 4.68 [4.14–5.04] | 26 | A: 4.44 [3.63–4.70] | 24 | 0.03* | ||
P: 4.52 [4.08–5.34] | 26 | P: 4.50 [4.05–5.03] | 24 | 0.46 | |||
Distal CCA | A: 4.67 [3.75–5.10] | 25 | A: 4.25 [3.58–4.61] | 26 | 0.06 | ||
P: 4.40 [3.96–5.24] | 25 | P: 4.48 [3.84–5.13] | 26 | 0.74 | |||
ICA | A: 2.63 [2.29–3.54] | 23 | A: 2.67 [2.33–3.18] | 22 | 0.34 | ||
P: 2.84 [2.34–3.19] | 22 | P: 2.23 [1.82–2.62] | 19 | 0.01* |