Sonographic Formulas
John C. Sciarra
Ok, there is really no other way to put it. Memorize these!!!!!!!!!!!!!!!!!!! Some you probably already know, others are Greek. So just write them out over and over until you have them memorized.
Gradient = 4 × Velocity squared
Area of a cylinder thing = 0.785 × D squared
Area of a triangle = 0.433 × Side squared
Deceleration time mv area = 759/DT (ms)
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