Fig. 3 | Scientific Reports

Fig. 3

From: Relation between anatomical features of patent foramen ovale and residual shunt based on transesophageal echocardiography

Fig. 3The alternative text for this image may have been generated using AI.

Measurements made in the TEE mid-esophageal bicaval view (90–120°): (A) Size of right atrial opening: the widest distance between the primary septum and secondary septum was measured perpendicular to the interatrial septal plane. (B) Size of left atrial opening: the widest distance between the primary septum and secondary septum was measured perpendicular to the interatrial septal plane. (C) Tunnel length: the length of overlap between the primary septum and secondary septum was measured parallel to the interatrial septal plane. (D) Secondary septum thickness: the width of the thickest point on the middle to lower segment of the secondary septum was measured perpendicular to the secondary septum. PFO, Patent foramen ovale; LA, Left Atrium; RA, Right Atrium; SS, Secondary septum.

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