Table 2.
Hemoglobin, Hematocrit and CMR Results
| Measurement | Subjects (n = 123) |
|---|---|
| CMR Values | |
| LVEDV (mL) | 152 (IQR 126–184) |
| Indexed LVEDV (mL/m2) | 80 (IQR 71–96) |
| LVESV (mL) | 64 (IQR 50–80) |
| Indexed LVESV (mL/m2) | 34 (IQR 27–43) |
| LVSV (mL) | 82 (IQR 69–103) |
| LVEF (%) | 58 (IQR 52–64) |
| Laboratory Values | |
| Laboratory hemoglobin (g/L) | 134.1 ± 17.0 |
| Laboratory hematocrit | 0.399 ± 0.048 |
| Laboratory ECV (%) | 27.1 ± 4.7 |
| POC Values | |
| POC hemoglobin (g/L) | 131.6 ± 14.7 |
| POC hematocrit | 0.395 ± 0.044 |
| POC ECV (%) | 27.3 ± 4.8 |
| Synthetic Values | |
| Synthetic hematocrit | 0.398 ± 0.031 |
| Synthetic ECV (%) | 26.5 ± 4.3 |
| Elevated Laboratory ECV (≥30%) | 31 (25%) |
| Anemia | 31 (25%) |
Data are mean ± standard deviation, median and interquartile range (IQR), or number of patients with percentage in parentheses
CMR cardiovascular magnetic resonance, ECV extracellular volume, LVEDV left ventricular end diastolic volume, LVEF left ventricular ejection fraction, LVESV left ventricular end systolic volume, LVSV left ventricular stroke volume, POC point-of-care