GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW) | ||||||
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14:29 Apr 1, 2005 |
Spanish to English translations [PRO] Medical - Medical: Cardiology | |||||||
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| Selected response from: Pantoglot Colombia Local time: 21:58 | ||||||
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4 +1 | relationship between velocity and cross-sectional area |
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5 | velocity - cross-sectional area ratio |
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relationship between velocity and cross-sectional area Explanation: Take a look at the following model on the following Website. Hope it helps. Theoretical Model We considered the lumen cross-sectional area in the proximal LAD and its regional myocardial perfusion bed as a unit. We modeled it as functioning at resting demand conditions, without ischemia and without collateral supply to or from the bed. Under these conditions, the flow continuity principle states that volumetric flow through the coronary cross-section (Qart) equals the flow required by the metabolic demand of the myocardial bed (Qart=Qbed). Recognizing that Qart is the product of a spatially averaged resting velocity (V) with a cross-sectional area (A) at that point (Qart=VxA) and that Qbed is the product of the distal bed’s average perfusion (q; measured as milliliters per minute per 100 grams) and its mass (m), the flow continuity equation can be written as follows. V*A = q*m V = (q*m)/A This can be rearranged to express the average resting velocity as follows. http://circ.ahajournals.org/cgi/content/full/102/1/48 |
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velocity - cross-sectional area ratio Explanation: Hope it helps...:-) |
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