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A Wiggers diagram modified from [1]. A Wiggers diagram, named after its developer, Carl Wiggers, is a unique diagram that has been used in teaching cardiac physiology for more than a century.
The left atrial volume is commonly measured by echocardiography or magnetic resonance tomography.It is calculated from biplane recordings with the equation: = where A4c and A2c denote LA areas in 4- and 2-chamber views respectively, and L corresponds to the shortest long-axis length measured in either views.
By approximating the shape of the left atrium as an ellipsoid, its volume can be calculated from measurements of its dimensions along three perpendicular directions. [3] Indexing the left atrial volume to body surface area (volume/BSA) is recommended by the American Society of Echocardiography and the European Association of Echocardiography ...
Wayne L. Smith, an engineer in the Washington, D.C., area, scoffed at an image he saw last week of Republican presidential candidate Donald Trump gleefully nestled among a group of smiling Black ...
The campaign announced within hours of Saturday's assassination attempt — which wounded Trump's ear and left the shooter and one other person dead — that Trump would be in attendance to accept ...
Date/Time Thumbnail Dimensions User Comment; current: 04:01, 16 January 2025: 1,070 × 1,386 (203 KB): Gore2000: Reverted to version as of 03:11, 16 January 2025 (UTC) I have sinned.
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Noting that the photos quickly appeared in Internet memes, Jason Farago, art and culture critic for the The New York Times, said that "image of authority also invites its own parody; that is the secret of its strength". He wrote that the photos conveyed a different message from video: "[T]he fist had a more warlike aspect, suggesting ...