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. Author manuscript; available in PMC: 2022 Apr 4.
Published in final edited form as: Nature. 2020 Mar 25;580(7802):252–256. doi: 10.1038/s41586-020-2145-8

Extended Data Figure 2: Individual beat assessment of ejection fraction for each clip in the test dataset.

Extended Data Figure 2:

The left panel shows patients with low variance across beats (SD < 2.5, n = 3,353) and the right panel shows patients with high variance across beats (SD > 2.5, n = 717). Each patient video is represented by multiple points representing the estimate of each beat and a line signifying 1.96 standard deviations from the mean. A greater proportion of beats are within 5% of ejection fraction from the human estimate (the shaded regions) in videos with low variance compared to individual beat assessment of ejection fraction in high variance patients.