Impaired myocardial perfusion is associated with increasing end-systolic- and end-diastolic volumes in patients with non-ischemic systolic heart failure: a cross-sectional study using Rubidium-82 PET/CT

Table 3 Myocardial perfusion data

All patients (N = 151)
Median global rest MBF (IQR) – ml/g/min	0.94 (0.76–1.09)
Median global stress MBF (IQR) – ml/g/min	2.18 (1.69–2.76)
Mean MFR (95% CI)	2.38 (2.24–2.52)
Mean coronary vascular resistance rest – mmHg/(ml/g/min) (95% CI)	89 (85–93)
Mean coronary vascular resistance stress – mmHg/(ml/g/min) (95% CI)	43 (39–47)
Median TID (IQR)	1.07 (1.02–1.14)
Median SRS (IQR)	2.0 (0.0–4.0)
Median SSS (IQR)	4.0 (2.0–7.0)
Median SDS (IQR)	2.0 (1.0–5.0)

IQR interquartile range, MBF myocardial blood flow, MFR myocardial flow reserve, CI confidence interval, TID transient ischemic dilation, SRS summed rest score, SSS summed stress score, SDS summed difference score

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