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Table 3 Summary of Agreement between DSA and 3D CMR VWI images

From: Assessment of carotid atherosclerotic disease using three-dimensional cardiovascular magnetic resonance vessel wall imaging: comparison with digital subtraction angiography

VariablesAll arteries (n = 101)Arteries with stenosis > 50% of US (n = 50)
 ICCCMR reader 1DSAMean Difference ± SEP-valueLimits of AgreementICCCMR reader 1DSAMean Difference ± SEP-valueLimits of Agreement
CCA, mm0.92(0.88,0.95)7.67 ± 1.359.65 ± 1.82− 1.98 ± 0.09<0.001−3.68, −0.270.91(0.85,0.95)7.53 ± 1.419.44 ± 1.93−1.91 ± 0.14<0.001−3.79, −0.04
C1, mm0.98(0.94,0.97)4.56 ± 1.125.12 ± 1.14−0.55 ± 0.03<0.001−1.20,0.090.98(0.96,0.99)4.31 ± 1.314.83 ± 1.29−0.52 ± 0.05<0.001−1.27,0.23
C2, mm0.97(0.95,0.98)4.07 ± 1.064.63 ± 1.04−0.56 ± 0.04<0.001−1.27,0.150.96(0.94,0.98)3.86 ± 1.264.44 ± 1.19−0.57 ± 0.06<0.001−1.47,0.33
C3, mm0.95(0.92,0.96)4.05 ± 1.124.55 ± 1.05−0.51 ± 0.05<0.001−1.48,0.460.95(0.92,0.97)3.78 ± 1.254.36 ± 1.13−0.58 ± 0.07<0.001−1.57,0.41
C4, mm0.97(0.96,0.98)3.54 ± 1.243.98 ± 1.17−0.44 ± 0.04<0.001−1.21,0.360.96(0.92,0.97)3.29 ± 1.353.76 ± 1.22−0.47 ± 0.08<0.001−1.52,0.58
C5, mm0.93(0.89,0.95)3.82 ± 1.174.34 ± 1.10−0.51 ± 0.06<0.001−1.67,0.640.89(0.81,0.94)3.62 ± 1.364.23 ± 1.23−0.61 ± 0.11<0.001−2.18,0.96
C6, mm0.96(0.95,0.98)2.98 ± 0.943.39 ± 0.92−0.41 ± 0.04<0.001−1.10,0.280.96(0.92,0.98)2.83 ± 1.143.27 ± 1.06−0.44 ± 0.06<0.001−1.33,0.45
C7, mm0.92(0.88,0.95)2.82 ± 0.853.23 ± 0.80−0.41 ± 0.05<0.001−1.30,0.480.84(0.71,0.91)2.65 ± 0.873.10 ± 0.73−0.45 ± 0.09<0.001−1.64,0.73
Stenosis (%)0.98(0.98,0.99)36.00 ± 28.9734.13 ± 27.891.87 ± 0.720.011−12.28,16.020.99(0.98,0.99)59.20 ± 18.8756.12 ± 17.132.48 ± 0.56<0.001−5.28,10.25
Stenosis diameter, mm0.93(0.89,0.95)1.89 ± 1.652.10 ± 1.95−0.22 ± 0.090.026−2.09,1.660.99(0.99,0.99)2.00 ± 1.042.35 ± 1.05−0.35 ± 0.02<0.001−0.67, −0.03
Reference diameter, mm0.93(0.90,0.96)3.61 ± 2.473.96 ± 2.96−0.35 ± 0.140.012−3.0,2.30.97(0.95,0.98)4.83 ± 1.215.40 ± 1.37−0.57 ± 0.06<0.001−1.43,0.29
Lesion length, mm0.96(0.95,0.98)8.59 ± 7.296.08 ± 5.742.51 ± 0.25<0.001−2.3,7.30.98(0.97,0.99)13.81 ± 6.2310.35 ± 5.083.46 ± 0.20<0.0010.70,6.20
  1. Note: 29 arteries with total occlusion displayed on DSA images were excluded. After measurement of the reference diameter and lesion length, 2 additional arteries with total occlusion displayed on CMR images were excluded
  2. Comparison between CMR reader 2 and DSA was not shown because of a strong similarity with results for CMR reader 1
  3. Data are presented as mean ± standard deviation. Numbers in parentheses are 95% CI
  4. 3D CMR VWI, three-dimensional cardiovascular magnetic resonance vessel wall imaging; CCA, common carotid artery; CI, confidence interval; DSA, digital subtraction angiography; ICC, intraclass correlation coefficient; SD, standard deviation; SE, standard error; US, ultrasound