Table 5.
Annular Quadrant Areas and Movement by Tricuspid Regurgitation Group
| Variable | Mild or Less TR (n=28) | Moderate or Greater TR (n=20) | p Value |
|---|---|---|---|
| Anterior Quadrant | |||
| ED Area (cm2/m2) | 2.46 [2.01–3.05] | 2.88 [2.22–4.19] | 0.20 |
| MS Area (cm2/m2) | 2.24 [1.97–2.70] | 2.72 [1.84–3.70] | 0.36 |
| ES Area (cm2/m2) | 2.27 [1.95–2.85] | 2.66 [1.90–3.64] | 0.40 |
| ED-ES Area Change (cm2/m2) | 0.17 [0.06–0.42] | 0.36 [0.10–0.49] | 0.07 |
| Maximum Area Change (cm2/m2) | 0.37 [0.20–0.56] | 0.58 [0.30–0.86] | 0.05 |
| Maximum Area Percent Change (%) | 16.6 [9.8–21.8] | 32.5 [13.3–35.6] | 0.09 |
| Mean ED-ES Radial Displacement (cm/m) | 0.08 [0.00–0.15] | 0.11[0.01–0.18] | 0.08 |
| Posterior Quadrant | |||
| ED Area (cm2/m2) | 2.04 [1.77–2.29] | 2.54 [1.71–3.31] | 0.11 |
| MS Area (cm2/m2) | 2.00[1.77–2.46] | 2.31 [1.67–3.40] | 0.41 |
| ES Area (cm2/m2) | 2.00 [1.77–2.54] | 2.04 [1.58–3.10] | 0.75 |
| ED-ES Area Change (cm2/m2) | −0.02[−0.21–0.21] | 0.20 [0.01–0.39] | 0.008 |
| Maximum Area Change (cm2/m2) | 0.12[−0.03–0.27] | 0.30 [0.10–0.60] | 0.02 |
| Maximum Area Percent Change (%) | 7.4 [−1.7–15.4] | 14.1 [4.5–25.0] | 0.03 |
| Mean ED-ES Radial Displacement (cm/m) | 0.01 [−0.11–0.09] | 0.13 (0.00–0.17] | 0.02 |
| Septal Quadrant | |||
| ED Area (cm2/m2) | 2.43 [2.08–3.00] | 2.78 [2.23–4.00] | 0.15 |
| MS Area (cm2/m2) | 2.24[2.88–1.92] | 2.46[1.91–3.66] | 0.36 |
| ES Area (cm2/m2) | 2.13[1.78–2.68] | 2.30[1.88–3.51] | 0.33 |
| ED-ES Area Change (cm2/m2) | 0.37 [0.16–0.49] | 0.41 [0.21–0.73] | 0.37 |
| Maximum Area Change (cm2/m2) | 0.41 [0.23–0.57] | 0.43 [0.34–0.76] | 0.24 |
| Maximum Area Percent Change (%) | 20.3 [11.7–27.5] | 21.0 [12.2–35.3] | 0.61 |
| Mean ED-ES Radial Displacement (cm/m) | 0.19 [0.10–0.25] | 0.12 [0.04–0.62] | 0.23 |
| Lateral Quadrant | |||
| ED Area (cm2/m2) | 2.16 [1.89–2.62] | 2.79 [2.09–4.19] | 0.03 |
| MS Area (cm2/m2) | 2.00 [1.87–2.71] | 2.54 [1.81–3.72] | 0.20 |
| ES Area (cm2/m2) | 2.17 [1.93–2.66] | 2.49 [1.79–3.82] | 0.29 |
| ED-ES Area Change(cm2/m2) | 0.00 [−0.02–0.10] | 0.29 [−0.06–0.53] | 0.006 |
| Maximum Area Change (cm2/m2) | 0.07 [0.21–0.33[ | 0.60 [0.26–0.91] | 0.003 |
| Maximum Area Percent Change (%) | 10.1 [3.1–15.1] | 22.4 [11.9–36.8] | 0.003 |
| Mean ED-ES Radial Displacement (cm/m) | −0.09 [−0.15 –0.04] | 0.06 [−0.03–0.17] | 0.002 |
Values listed as Median [IQR], TR = tricuspid regurgitation, ED=End-diastole, MS=Mid-Systole, ES=End-Systole, MD=Mid-Diastole
Maximum change = maximum value in cardiac cycle (MD or ED) minus minimum value in cardiac cycle (MS or ES)
Maximum Percent Change = maximum change divided by minimum value expressed as a percent