Calculation of pressure half-time
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Mark A. Oyama; Jess A. Weidman; Steven G. Cole
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Article
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2008
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Elsevier Science
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English
⚖ 742 KB
Doppler echocardiography is useful in assessing the severity of obstructive cardiac lesions, such as mitral valve stenosis. The Doppler study can be used to calculate pressure half-time (PHT), which is defined as the time required for the pressure gradient across an obstruction to decrease to half o