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Normal (n = 12)
|
Stenotic (n = 12)
|
|---|
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FFV (mL/beat)
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|
Flow Transducer
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90 ± 16
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91 ± 18
|
|
PC-CMR
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93 ± 16
|
88 ± 17
|
|
Peak Velocity (cm/s)
|
|
Doppler
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148 ± 33
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282 ± 77
|
|
PC-CMR
|
133 ± 34
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275 ± 76
|
|
AOA (cm2)
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|
CMR
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2.9 ± 0.5
|
1.2 ± 0.3
|
|
Mean gradient (mm Hg)
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|
Doppler
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4.0 ± 1.7
|
16.0 ± 8.9
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|
Pressure Transducer
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4.7 ± 1.0
|
14.8 ± 7.8
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|
EOA (cm2)
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|
Doppler
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1.8 ± 0.3
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1.0 ± 0.2
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PC-CMR
|
2.1 ± 0.4
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1.0 ± 0.2
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- Forward flow volume FFV, Anatomic orifice area AOA, Effective orifice area EOA, Phase contrast cardiovascular magnetic resonance PC-CMR
