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The alternative coordinate method, also known as the Shoelace Formula, is a technique for determining the area of a traverse using Cartesian coordinates. This method relies on the sequential arrangement of x and y coordinates for each point of the shape, ensuring accuracy and ease of application.In this approach, each corner's x and y coordinates are listed as fractions, with the x-coordinate as the numerator and the y-coordinate as the denominator. These coordinates are arranged sequentially...
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Ex Vivo Assessment of Contractility, Fatigability and Alternans in Isolated Skeletal Muscles
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An alternative to QRS alternans

John L Fitzgerald1, Austin N May1, Bradley Wilsmore1

  • 1Department of Cardiology, John Hunter Hospital, Newcastle, New South Wales, Australia.

Journal of Cardiovascular Electrophysiology
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No abstract available in PubMed .

Keywords:
Coumel's signQRS alternansaccessory pathwayorthodromic atrioventricular re-entrant tachycardia

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