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Exercise Stress Echo (Pulmonary pressure). Rest. Peak. dPmax = 64 mmHg. dPmax = 110 mmHg. Exercise Stress Echo (Mitral Regurgitation). Rest. Peak. Aliasing velocity = 38.4 cm/s PISA radius = 0.5cm Peak MR velocity = 500cm/s VTI MR = 175cm ERO = 2 x 0.9 2 x 38.4 / 570 = 0.12cm 2 - PowerPoint PPT Presentation
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6. Valvular Heart Disease 1/6
Exercise Stress Echo (Pulmonary pressure)
dPmax = 64 mmHg dPmax = 110
mmHg
Rest Peak
6. Valvular Heart Disease 2/6
Exercise Stress Echo (Mitral Regurgitation)
Aliasing velocity = 38.4 cm/s PISA radius = 0.5cm Peak MR velocity = 500cm/sVTI MR = 175cm
ERO = 2 x 0.92 x 38.4 / 570 = 0.12cm2
Regurgitant volume = 175 x 0.12 = 21ml
Aliasing velocity = 38.4 cm/s PISA radius = 0.9cm Peak MR velocity = 570cm/sVTI MR = 195cm
ERO = 2 x 0.92 x 38.4 / 570 = 0.34cm2
Regurgitant volume = 195 x 0.34 = 66ml
Rest Peak
6. Valvular Heart Disease 3/6
Dobutamine Stress Echo (True Aortic Stenosis)
REST
Peak V = 3.5 m/s
Mean P = 32 mmHg
AVA = 0.7 cm2
DOBUTAMINE
Peak V = 4.9 m/s
Mean P = 56 mmHg
AVA = 0.7 cm2
6. Valvular Heart Disease 4/6
Dobutamine Stress Echo (Aortic Pseudostenosis)
REST
Peak V = 3.5 m/s
Mean P = 32 mmHg
AVA = 0.7 cm2
DOBUTAMINE
Peak V = 4.0 m/s
Mean P = 36 mmHg
AVA = 1.1 cm2
6. Valvular Heart Disease 5/6
Mitral stenosis
peak
2D Color MV CW TR CW
rest
6. Valvular Heart Disease 6/6
peak
2D Color MV CW TR CW
rest dPmean=4mmHg
dPmean=9mmHg
dP=36mmHg
dP=64mmHg
Mitral stenosis