Key result
Coronary flow reserve describes the amount of additional blood flow that can be supplied to the heart above baseline, which decreases progressively as a coronary artery is narrowed.
This article reviews imaging techniques used to assess coronary flow reserve.
CFR reduction signals stenosis progression; leaves open optimal imaging protocols for routine use.
Myocardial blood flow (MBF) must respond to changes in metabolic conditions and oxygen requests to meet the needs of myocytes, and autoregulation plays a mayor role in the control of coronary circulation.1–3 It has been demonstrated that, as a coronary artery is progressively narrowed, resting flow does not change at first, but maximal flow (achieved by injecting a vasodilator) decreases progressively.4,5 Coronary flow reserve (CFR) is the term used to describe the amount of additional blood flow that can be supplied to the heart above baseline blo
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Petretta et al. (2008) conducted a review in Coronary Flow Reserve. Imaging Techniques was evaluated. Coronary flow reserve describes the amount of additional blood flow that can be supplied to the heart above baseline, which decreases progressively as a coronary artery is narrowed.
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