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3 Cards in this Set
- Front
- Back
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Doppler echocardiography
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Doppler echocardiography uses ultrasound reflecting off moving red blood cells to determine flow velocity within a structure, in this case the heart or great vessels. Thus, it is most useful for determining abnormal flow or flow limitation. Specifically, it is useful in defining valvular regurgitation or stenosis, cardiac output when combined with the cross-sectional area, and diastolic filling of the ventricle
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2d
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two-dimensional (2D) echocardiography is the preferred mode for effusion diagnosis. Similarly, 2D echocardiography is used to calculate ejection fraction and diagnose cardiac masses
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torsade de pointes,
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with polymorphic ventricular tachycardia and QRS complexes with variations in amplitude and cycle length, giving the appearance of oscillation about an axis.
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