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. 2021 Oct 12;10(20):e021936. doi: 10.1161/JAHA.120.021936

Figure 1. Examples of noninvasively derived coronary flow velocity reserve (CFVR) for left anterior descending artery (LAD) and posterior descending artery (PD).

Figure 1

(A1) Color Doppler signal of coronary flow for the distal segment of LAD in modified 3 chamber view (arrow). Peak baseline (A2) and hyperemic (A3) diastolic flow velocities with impaired CFVR LAD (0.50/0.32) – 1.56. (B1) Color Doppler signal of coronary flow for the PD, in modified 2 chamber view (arrow). Peak baseline (B2) and hyperemic (B3) diastolic flow velocities with impaired CFVR PD (0.60/0.39) – 1.54.