Table 4.
Volumetric and Flow Data (n = 58)
| Pre-HF MRI |
Pre-TCPC MRI |
||||
|---|---|---|---|---|---|
| Mean ± SD | Range | Mean ± SD | Range | p Value | |
| Heart rate, beats/min⁎ | 113.5 ± 14.7 | 83–150 | 89.3 ± 16.0 | 57–133 | <0.001 |
| Indexed EDV, ml/m2⁎ | 98.1 ± 35.5 | 48.7–222.6 | 87.2 ± 22.4 | 43.7–163.8 | 0.002 |
| Indexed ESV, ml/m2⁎ | 49.5 ± 24.4 | 15.3–126.5 | 36.0 ± 12.9 | 11.0–72.9 | <0.001 |
| Indexed SV, ml/m2 | 48.6 ± 14.7 | 19.9–105.6 | 50.9 ± 12.9 | 32.0–98.7 | 0.22 |
| Cardiac index, l/min/m2⁎ | 5.5 ± 2.0 | 2.5–13.4 | 4.5 ± 1.4 | 2.8–8.9 | <0.001 |
| Ejection fraction, %⁎ | 51.1 ± 8.8 | 28.4–72.4 | 59.3 ± 8.1 | 43.2–79.3 | <0.001 |
| Right SCV SV, ml/beat/m2 (n = 53) | — | — | 19.8 ± 6.7 | 6.3–36.8 | — |
| Left SCV SV, ml/beat/m2 (n = 4) | — | — | 10.2 ± 8.6 | 2.4–22.0 | — |
| RPA SV, ml/beat/m2 (n = 41) | — | — | 12.7 ± 4.9 | 2.5–25.3 | — |
| LPA SV, ml/beat/m2 (n = 35) | — | — | 7.3 ± 3.2 | 1.0–13.2 | — |
| RPA flow, % (n = 51) | — | — | 63.0 ± 10.7 | 28.3–89.8 | — |
| LPA flow, % (n = 51) | — | — | 37.0 ± 10.7 | 10.2–71.7 | — |
| CVP, mm Hg (n = 50) | — | — | 12.1 ± 2.3 | 6.0–16.0 | — |
CVP = central venous pressure; EDV = end-diastolic volume; ESV = end-systolic volume; LPA = left pulmonary artery; RPA = right pulmonary artery; SCV = superior caval vein; SV = stroke volume; other abbreviations as in Table 2.
⁎
Significant, paired Student t test in 58 patients.