Intra-coronary physiology in contemporary percutaneous coronary intervention and anginal therapy with a focus on microvascular disease

Figures

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  Figure 1. Positive FFR <0.80 (indicated by white arrow). Yellow arrow demonstrates the separation of the distal coronary pressure (green waveform) from the aortic pressure (red waveform) during hyperaemia induced by intravenous adenosine.

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  Figure 2. Positive iFR <0.89 (white arrow). The yellow arrow demonstrates the separation of the distal coronary pressure (green waveform) from the aortic pressure (red waveform) at rest.

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  Figure 3. Negative microvascular study demonstrating a CFR of 4 (white arrow) and an IMR of 14 (yellow arrow) ruling out microvascular dysfunction.

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  Figure 4. Positive microvascular study demonstrating a CFR of 1.6(white arrow) and an IMR of 43 (yellow arrow) fulfilling the criteria for MVD i.e. CFR < 2.5 and IMR > 25.

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  Figure 5. Proposed pathway for invasive management of angina and microvascular dysfunction at our centre.