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. Author manuscript; available in PMC: 2019 Jun 1.
Published in final edited form as: J Thorac Cardiovasc Surg. 2017 Nov 16;155(6):2277–2286.e2. doi: 10.1016/j.jtcvs.2017.11.007

Table 4.

Biases [limits of agreement] for the inter-operator variability of regional aortic WSS indices at baseline and follow-up in each patient group.

No surgery (n=10) Surgery (n=10)
baseline follow-up baseline follow-up
Peak WSS (Pa)
AA 0.05 [−0.12;0.22] −0.05 [−0.25;0.14] 0.08 [−0.21;0.36] 0.09 [−0.27;0.45]
Arch 0.01 [−0.03;0.04] 0.00 [−0.03;0.04] 0.01 [−0.07;0.09] 0.02 [−0.08;0.11]
DA 0.00 [−0.04;0.04] −0.00 [−0.02;0.01] −0.00 [−0.04;0.04] −0.00 [−0.03;0.02]
At-risk tissue area s(%)
AA 0.4 [−1.1;1.9] 0.2 [−3.2;3.6] −0.1 [−5.8;5.5] −1.1 [−9.4;7.2]
Arch 0.8 [−4.0;5.6] 0.1 [−0.3;0.4] 0.8 [−5.4;7.0] 0.8 [−3.4;5.1]
DA −0.0 [−0.2;0.2] −0.1 [−1.2;1.0] 0.1 [−1.9;2.0] −0.0 [−0.4;0.3]

WSS: w all shear stress; AA: ascending aorta; DA: descending aorta.