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Fig. 4 | BioMedical Engineering OnLine

Fig. 4

From: A vessel length-based method to compute coronary fractional flow reserve from optical coherence tomography images

Fig. 4

Schematic diagram of the present method. The OCT-derived three-dimensional (3D) ROI model was coupled with a length-based LPM from CAG. Here, Q, flow rate; P, pressure; R, resistance; C, capacitance; r, radius of the vessel segment. Subscripts, ao, aorta; a, large artery; coa, coronary arterioles; coc, coronary capillaries; cov, coronary veins; imp, intra-myocardium; coll, collateral; ra, right atrium

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