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Table 2 Hemoglobin, Hematocrit and CMR Results

From: Noninvasive hematocrit assessment for cardiovascular magnetic resonance extracellular volume quantification using a point-of-care device and synthetic derivation

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%)
  1. Data are mean ± standard deviation, median and interquartile range (IQR), or number of patients with percentage in parentheses
  2. 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