Mitral Valve Area by Pressure half-time
MVA is calculated as —– divided by pressure half-time
[A] 120
[B] 220
[C] 300
[D] 328
Mitral Valve Area by Pressure half-time
MVA is calculated as 220 divided by pressure half-time
- 220 – empirically derived constant
- Pressure half-time – time that it takes the initial transvalvular gradient to fall to half its initial value.
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