Association of pulmonary transit time by cardiac magnetic resonance with heart failure hospitalization in a large prospective cohort with diverse cardiac conditions

Table 2 CMR findings comparing subjects with and without longer pulmonary transit time (PTT) duration

Variables	PTT < 8.2 (n = 368)	PTT ≥ 8.2 (n = 138)	p-value
LV end diastolic volume, ml/m²	86 ± 24	95 ± 38	0.0015
LV end systolic volume, ml/m²	44 ± 25	59 ± 38	< 0.0001
LV stroke volume, ml	85 ± 22	72 ± 21	< 0.0001
LV stroke volume, ml/m²	42 ± 10	36 ± 10	< 0.001
LV ejection fraction, %	51 ± 10	42 ± 15	< 0.0001
LV mass, g/m²	60 ± 16	72 ± 22	< 0.0001
RV end diastolic volume, ml/m²	72 ± 16	70 ± 21	0.3582
RV end systolic volume, ml/m²	33 ± 11	38 ± 18	0.0009
RV stroke volume, ml	77 ± 20	65 ± 19	< 0.0001
RV stroke volume, ml/m²	38 ± 9	32 ± 9	< 0.001
RV ejection fraction, %	54 ± 8	48 ± 11	< 0.0001
Left Atrial Volume, g/m²	40 ± 15	52 ± 42	< 0.001
Late gadolinium enhancement
Infarct pattern	41 (12)	32 (23)	0.0005
Non-infarct pattern	188 (53)	61 (45)	0.0005
Both	5 (1)	7 (5)	0.0005

Date are mean ± standard deviation or n (percentage). LV left ventricle, RV right ventricle

ISSN: 1532-429X