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Table 1 Patient characteristics

From: Synthetic hematocrit derived from the longitudinal relaxation of blood can lead to clinically significant errors in measurement of extracellular volume fraction in pediatric and young adult patients

  n or mean ± SD Portion or Range
Age (years) 16.4 ± 6.4 (7.4, 47.7)
Gender
 Male 145 (89%)
 Female 18 (11%)
BSA (m2) 1.61 ± 0.39 (0.77, 2.62)
Heart Rate (bpm) 93 ± 21 (45, 150)
LVEF (%) 59 ± 9 (24, 84)
LV EDVI (ml/m2) 70.6 ± 26.9 (29.4208.6)
LV ESVI (ml/m2) 29.6 ± 18.4 (7.9, 153.7)
Same Day Hct
 Yes 146 (90%)
 No 17 (10%)
Primary Diagnosis
Congenital
 Arch abnormalities 5 (3%)
 Aortic valve anomalies 7 (4%)
 ASD 1 (0.6%)
 AVSD 2 (1.2%)
 Mitral valve anomalies 1 (0.6%)
 Pulmonary valve anomalies 5 (3%)
 ToF 4 (2.5%)
 Tricuspid anomalies 1 (0.6%)
 VSD 2 (1.2%)
 DILV 1 (0.6%)
 DORV 1 (0.6%)
 CCTGA 1 (0.6%)
 D-TGA 1 (0.6%)
 Other 2 (1.2%)
 Total 24 (15%)
Secondary/Acquired
 Arrhythmia 2 (1.2%)
 Cardiomyopathy 11 (7%)
 Chemotherapy 6 (4%)
 Kawasaki Disease 1 (0.6%)
 Muscular Dystrophy 86 (53%)
 Myocarditis 9 (5%)
 Other acquired 4 (3%)
 Total 119 (73%)
Normal/Control 18 (11%)
  1. BSA = Body surface area; LVEF = left ventricular ejection fraction; LV EDVI = left ventricular end-diastolic volume indexed; LV EDSI = left ventricular end-systolic volume indexed; ASD = atrial septal defect; AVSD = atrioventricular septal defect; ToF = tetralogy of Fallot; VSD = ventricular septal defect; DILV = double inlet left ventricle; DORV = double outlet right ventricle; CCTGA = congenitally corrected transposition of the great arteries; D-TGA = D-transposition of the great arteries