Table 2.

Intraclass correlation coefficients (ICCs) and limits of agreement demonstrating repeatability of measurements of right ventricular (RV) function. In all groups, the number of subjects tested was 20. (TAPSE: tricuspid annular plane systolic excursion, FAC: fractional area change, S’: peak tricuspid annular systolic tissue velocity.)

Intra-reader Reliability: Transplants	ICC (95% Confidence Interval)	Limits of Agreement	Mean Difference (95% Confidence Interval)
TAPSE by M-mode	0.97 (0.94–1.00)	−0.09 – 0.14	0.025 (−0.003 – 0.052)
TAPSE by 2D	0.79 (0.63–0.96)	−0.18 – 0.34	0.078 (−0.018 – 0.138)
TAPSE by M-mode and 2D	0.95 (0.90–0.99)	−0.74 – 0.75	0.003 (−0.171 – 0.177)
FAC	0.85 (0.72–0.97)	−0.08 – 0.07	−0.005 (−0.022 – 0.012)
S’	0.99 (0.97–1.00)	−0.48 – 0.59	0.057 (−0.068 – 0.181)
Intra-reader Reliability: Controls
TAPSE by M-mode	0.95 (0.91–0.99)	−0.11 – 0.35	0.123 (0.069 – 0.176)
TAPSE by 2D	0.93 (0.86–0.99)	−0.37 – 0.38	0.004 (−0.083 – 0.091)
TAPSE by M-mode and 2D	0.92 (0.85–0.99)	−1.17 – 0.97	−0.100 (−0.350 – 0.150)
FAC	0.77 (0.58–0.95)	−0.06 – 0.12	0.033 (0.012 – 0.055)
S’	0.93 (0.88–0.99)	−0.95 – 1.28	0.165 (−0.095 – 0.424)
Inter-reader Reliability: Transplants
TAPSE by M-mode	0.88 (0.79–0.98)	−0.27 – 0.35	−0.031 (−0.086 – 0.024)
TAPSE by 2D	0.88 (0.74–0.98)	−0.31 – 0.20	−0.056 (−0.115 – 0.004)
FAC	0.76 (0.57–0.95)	−0.06 – 0.05	−0.002 (−0.014 – 0.011)
S’	0.89 (0.80–0.98)	−1.68 – 0.81	−0.438 (−0.730 - −0.146)
Inter-reader Reliability: Controls
TAPSE by M-mode	0.97 (0.94–1.00)	−0.30 – 0.13	−0.086 (−0.135 - −0.036)
TAPSE by 2D	0.84 (0.72–0.97)	−0.29 – 0.58	0.145 (0.043 – 0.247)
FAC	0.56 (0.26–0.87)	−0.08 – 0.09	0.006 (−0.014 – 0.026)
S’	0.92 (0.85–0.99)	−1.19 – 1.18	−0.006 (−0.283 – 0.271)