Table 1 Variations observed in the plaque GSM and area
From: Dynamic variations in the ultrasound greyscale median of carotid artery plaques
Plaque sample | GSM (un-normalized) | GSM (normalized) | Area | Periodical variations observed? | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
mean | s.d. | CV (s.d./mean) | mean | s.d. | CV (s.d./mean) | mean (mm2) | s.d. (mm2) | CV (s.d./mean) | ||
px1 | 40.3 | 1.69 | 4.2% | 40.5 | 1.69 | 4.2% | 22.3 | 0.25 | 1.1% | GSM |
px2 | 32.3 | 2.80 | 8.7% | 27.5 | 2.38 | 8.7% | 27.9 | 1.12 | 4.0% | |
px3 | 25.6 | 1.52 | 5.9% | 24.4 | 1.45 | 5.9% | 16.9 | 0.69 | 4.1% | Both |
px4 | 76.9 | 2.22 | 2.9% | 71.0 | 2.08 | 2.9% | 11.3 | 1.05 | 9.3% | |
px5 | 36.9 | 4.31 | 11.7% | 30.9 | 3.60 | 11.7% | 22.0 | 0.96 | 4.4% | Both |
px6 | 33.8 | 2.87 | 8.5% | 36.1 | 3.06 | 8.5% | 28.9 | 3.56 | 12.3% | Both |
px7 | 33.6 | 0.84 | 2.5% | 35.8 | 0.90 | 2.5% | 52.5 | 1.14 | 2.2% | Both |
px8 | 28.3 | 2.02 | 7.1% | 32.9 | 2.53 | 7.7% | 7.2 | 0.44 | 6.0% | Both |
px9 | 29.6 | 1.19 | 4.0% | 27.8 | 1.12 | 4.0% | 21.9 | 0.59 | 2.7% | |
px10 | 27.6 | 0.74 | 2.7% | 26.3 | 0.70 | 2.7% | 13.1 | 0.80 | 6.1% | |
px11 | 70.2 | 1.27 | 1.8% | 71.7 | 1.30 | 1.8% | 38.0 | 0.23 | 0.61% | Area |
px12 | 54.0 | 3.72 | 6.9% | 61.0 | 4.28 | 7.0% | 14.9 | 0.39 | 2.6% | |
px13 | 39.3 | 3.12 | 7.9% | 33.5 | 3.05 | 9.1% | 14.6 | 1.65 | 11.3% | GSM |
px14 | 40.9 | 1.66 | 4.1% | 38.1 | 1.55 | 4.1% | 30.2 | 1.29 | 4.3% | |
px15 | 53.7 | 1.97 | 3.7% | 53.1 | 1.95 | 3.7% | 15.9 | 0.71 | 4.4% | |
px16 | 31.9 | 1.68 | 5.3% | 34.8 | 1.83 | 5.3% | 14.6 | 0.93 | 6.4% | Area |
px18 | 73.3 | 5.30 | 7.2% | 58.3 | 4.21 | 7.2% | 25.8 | 0.82 | 3.2% | |
px19 | 112.3 | 1.98 | 1.8% | 95.7 | 1.72 | 1.8% | 67.0 | 1.14 | 1.7% | |
px21 | 52.4 | 2.35 | 4.5% | 51.1 | 2.34 | 4.6% | 22.7 | 1.09 | 4.8% | GSM |
px22 | 67.4 | 2.15 | 3.2% | 56.7 | 1.80 | 3.2% | 21.5 | 0.80 | 3.7% | Both |
px23 | 30.1 | 0.64 | 2.1% | 25.6 | 0.54 | 2.1% | 49.4 | 1.22 | 2.5% | Excluded |
px24 | 35.5 | 2.52 | 7.1% | 36.9 | 2.62 | 7.1% | 14.4 | 0.37 | 2.6% | Excluded |
px25 | 82.9 | 6.02 | 7.3% | 82.3 | 5.98 | 7.3% | 37.2 | 0.61 | 1.6% | Excluded |
px26 | 43.4 | 1.49 | 3.4% | 55.3 | 1.90 | 3.4% | 39.5 | 0.94 | 2.4% | |
px27 | 50.1 | 1.17 | 2.3% | 56.3 | 1.31 | 2.3% | 66.1 | 1.68 | 2.5% | |
px28 | 31.2 | 1.90 | 6.1% | 42.4 | 2.58 | 6.1% | 13.6 | 0.45 | 3.3% | Area |
px29 | 33.9 | 2.20 | 6.5% | 27.2 | 1.77 | 6.5% | 91.9 | 1.93 | 2.1% | |