Extended Data Fig. 8: Different phases in a cardiac cycle obtained from B-mode imaging. | Nature

Extended Data Fig. 8: Different phases in a cardiac cycle obtained from B-mode imaging.

From: A wearable cardiac ultrasound imager

Extended Data Fig. 8: Different phases in a cardiac cycle obtained from B-mode imaging.The alternative text for this image may have been generated using AI.

The rows are B-mode images of A4C, A2C, PLAX and PSAX views in the same phase. The columns are B-mode images of the same view during ventricular filling, atrial contraction, isovolumetric contraction, end of ejection and isovolumetric relaxation. The dashed lines highlight the main features of the current phase. Bluish lines mean shrinking in the volume of the labelled chamber. Reddish lines mean expansion in the volume of the labelled chamber. Yellowish lines mean retention in the volume of the labelled chamber. A2C, apical two-chamber view; A4C, apical four-chamber view; LA, left atrium; LV, left ventricle; LVOT, left ventricular outflow tract; RA, right atrium; RV, right ventricle; PLAX, parasternal long-axis view; PSAX: parasternal short-axis view.

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