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Table 2 Cardiac magnetic resonance imaging

From: Reverse remodeling of tricuspid valve morphology and function in chronic thromboembolic pulmonary hypertension patients following pulmonary thromboendarterectomy: a cardiac magnetic resonance imaging and invasive hemodynamic study

  Baseline (n = 19) 12 months (n = 19) p value Controls (n = 20)
Right atrium
 Volume (mL/m2) 30 ± 9* 23 ± 5  < 0.005 23 ± 6
 Length (mm) 57 ± 8 56 ± 10 0.54 53 ± 7
 Width (mm) 57 ± 12* 46 ± 8  < 0.005 48 ± 9
Right ventricle
 RVMi (g/m2) 22 ± 7* 13 ± 7  < 0.0001 12 ± 3
 End-diastolic volume (mL) 233 ± 74* 164 ± 50  < 0.0001 172 ± 41
 End-systolic volume (mL) 168 ± 75* 94 ± 40  < 0.0005 80 ± 23
 RVDd1 (mm) 54 ± 8* 42 ± 8  < 0.0001 43 ± 5
 RVDd2 (mm) 48 ± 8* 38 ± 6  < 0.0001 37 ± 4
 RV length (mm) 86 ± 10 78 ± 10  < 0.0001 82 ± 8
 RV sphericity index 2.5 ± 0.2* 2.8 ± 0.5  < 0.01 2.8 ± 0.4
 Stroke volume (mL) 65 ± 22* 71 ± 21* 0.15 92 ± 19
 TV regurgitant volume (mL) 11 ± 17 4 ± 8 0.20 4 ± 7
 Ejection fraction (%) 30 ± 13* 44 ± 10*  < 0.001 54 ± 20
Tricuspid valve
 Annular area sys (cm2) 12.6 ± 3.5 11.0 ± 3.2 0.11 12.4 ± 2.6
 Annular area dia (cm2) 14.5 ± 4.2 11.7 ± 3.9* 0.06 13.5 ± 2.8
 Circumference sys (cm) 15.0 ± 2.6 13.9 ± 2.8 0.18 15.0 ± 2.1
 Circumference dia (cm) 16.7 ± 1.9 15.9 ± 3.0 0.47 16.7 ± 1.9
 Annular height sys (cm) 1.3 ± 0.5* 1.1 ± 0.3  < 0.01 1.0 ± 0.3
 Annular height dia (cm) 1.3 ± 0.4 1.7 ± 0.7 0.16 1.5 ± 0.4
 SL distance sys (cm) 4.0 ± 0.6 3.8 ± 0.6 0.08 3.7 ± 0.5
 SL distance dia (cm) 4.4 ± 0.6 4.2 ± 0.7 0.24 4.1 ± 0.5
 AP distance sys (cm) 3.9 ± 0.5 3.8 ± 0.7 0.42 4.1 ± 0.5
 AP distance dia (cm) 4.1 ± 0.6 3.7 ± 0.8* 0.08 4.2 ± 0.6
 Leaflet area sys (cm2) 20.1 ± 5.8 16.2 ± 6.4  < 0.005 16.9 ± 3.7
 Tenting volume sys (cm3) 4.4 ± 2.6* 1.6 ± 0.9  < 0.005 1.5 ± 0.8
 Tenting height sys (mm3) 11.4 ± 3.9* 7.0 ± 2.2  < 0.0005 7.0 ± 1.9
 Coaptation height (mm) 4.9 ± 1.1* 5.8 ± 1.7* 0.17 7.2 ± 1.5
Pulmonary artery
 Cardiac output (L/min) 3.9 ± 0.9* 5.1 ± 1.4  < 0.005 4.9 ± 0.7
 Cardiac index (L/min/m2) 2.3 ± 0.4* 2.8 ± 0.6  < 0.005 2.6 ± 0.4
Non-invasive derived RV-PA coupling
 SV (mL) / ESV (mL) 0.49 ± 0.30* 0.84 ± 0.31* p < 0.0001 1.19 ± 0.20
  1. Data are presented as mean ± standard deviation
  2. AP, anterior–posterior; dia, diastolic; SL, septal-lateral; sys, systolic; Ea, Arterial elastance; Ees, End-systolic elastance; RV, Right ventricular; PA, Pulmonary artery; RVD1, Basal RV linear dimension at end-diastole; RVD2, Mid-cavity RV linear dimension at end-diastole; RVMi, Right ventricular mass index; SV, Stroke volume; ESV, End-systolic volume
  3. *p < 0.05 versus controls