Pulmonary blood volume measured by cardiovascular magnetic resonance: influence of pulmonary transit time methods and left atrial volume

Table 2 Pulmonary blood volume (PBV) in absolute numbers and indexed for body surface area (PBVI) for healthy controls and patients

	PBV (ml) Healthy controls N = 21	PBV (ml) Patients N = 37	PBVI (ml/m²) Healthy controls	PBVI (ml/m²) Patients	p-values (PBV/PBVI)
CoG(PA-LA)	526 ± 87	549 ± 123	282 ± 43	270 ± 53	0.35/0.18
PTB (FPP)	587 ± 110	656 ± 164	314 ± 57	323 ± 77	0.046*/0.82
PTB (FPP)–LAV_mean	522 ± 110	572 ± 155	280 ± 58	282 ± 75	0.14/0.87
peak-peak (FPP)	607 ± 112	668 ± 165	324 ± 55	328 ± 76	0.08/0.77
peak-peak (FPP)–LAV_mean	544 ± 107	589 ± 154	291 ± 54	288 ± 75	0.17/0.84
CoG(FPP)	615 ± 115	672 ± 159	329 ± 56	330 ± 70	0.06/0.96
CoG FPP)–LAV_mean	551 ± 115	590 ± 143	295 ± 58	291 ± 66	0.18/0.88

CoG(PA-LA) pulmonary transit time pulmonary artery – left atrium; PTB(FPP) pulmonary transit time, pulmonary transit beats; peak-peak(FPP) pulmonary transit time, peak to peak; CoG(FPP) pulmonary transit time, center of gravity; LAV_mean mean left atrial volume
Note that patients are unselected, not necessarily patients with heart failure. Asterisk denotes statistically significant difference (p < 0.05)

ISSN: 1532-429X