Key result
Intracoronary Doppler flow velocities acquired distal to isolated left coronary artery stenoses correlated significantly with [15O]H2O PET regional myocardial perfusion (r=0.60, P<0.001).
Why the study?
Does intracoronary Doppler flow velocity correlate with [15O]H2O PET regional myocardial perfusion in patients with isolated left coronary artery stenoses?
Observational (n=11)
Does intracoronary Doppler flow velocity correlate with [15O]H2O PET regional myocardial perfusion in patients with isolated left coronary artery stenoses?
Effect estimate: r = 0.60
p-value: p=<0.001
Intracoronary Doppler flow velocities distal to isolated left coronary artery stenoses correlate well with [15O]H2O PET regional myocardial perfusion, supporting their use in assessing the physiological significance of coronary stenoses.
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May support Doppler for physiological stenosis assessment; leaves open outcome validation versus PET.
Miller et al. (1996) conducted an observational in Ischemic chest pain and isolated proximal left coronary artery stenoses (n=11). [15O]H2O myocardial PET and intracoronary Doppler flow velocity studies was evaluated on Correlation between PET regional myocardial blood flow and Doppler average peak flow velocities (r = 0.60, p=<0.001). Intracoronary Doppler flow velocities acquired distal to isolated left coronary artery stenoses correlated significantly with [15O]H2O PET regional myocardial perfusion (r=0.60, P<0.001).
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