Systemic-to-pulmonary collateral flow in patients with palliated univentricular heart physiology: measurement using cardiovascular magnetic resonance 4D velocity acquisition

Table 5 Controls: demographics and 4D CMR flow data

Demographics
Controls (n)	20
Age at CMR (years)	28.7±13.1
Weight (kg)	65.9±19.2
BSA (m²)	1.7±0.4
Females (%)	9 (41 %)
4D velocity acquisition (l/min/m²)
SVC	0.91±0.14
IVC	1.8±0.43
RPA	1.48 ± 0.28
LPA	1.26 ± 0.25
RPV	1.45 ± 0.29
LPV	1.28 ± 0.25
AO	2.74±0.45
SPCF	−0.01±0.16

4D, four-dimensional; AO, aorta; BSA, body surface area; CMR, cardiovascular magnetic resonance; IVC, inferior vena cava; LPA, left pulmonary artery; LPV, left pulmonary veins; RPA, right pulmonary artery; RPV, right pulmonary veins; SVC, superior vena cava; SPCF, systemic-to-pulmonary collateral flow (SPCF = RPV + LPV-RPA-LPA).