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Abnormal Valve Values
Prosthetic Valve EOA
Echo Calculations
Aortic Stenosis
Aortic valve gradient
Continuity equation
Aortic Regurgitation
By PHT
ERO by PISA
Mitral Stenosis
MVA by PHT
MVA by PISA
Mitral Regurgitation
EROA by PISA
RV by continuity equation
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Cariac output
dP/dT
MPl or Tei Index
LA pressure by MR jet
Body surface area
PA systolic pressure
RV systolic pressure
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Abnormal valve evaluation
Mild
Moderate
Severe
Mitral Regurgitation
LA size
Normal
Variable
Enlarged
LV size
Normal
Variable
Enlarged
Jet Area
<4 cm2
4–8 cm2
>8 cm2
Jet v/s LVOT area
>40%
Vena Contracta
<0.3
0.3–0.69
>0.7
Mitral flow (PW)
A dominant
Variable
Restrictive
Mitral flow (CW)
Faint
Dense
Regurgitant vol.
<30 ml/beat
30–59
>60
Reg. fraction (%)
<30
30–49
>50
ROA (cm²)
<0.20
0.20–0.39
>0.40
Mitral Stenosis
LA size
Normal
>60mm
Echo contrast
Usually absent
May be present
Present
Area
1.5–2.5 cm2
1.5–1.0 cm2
Up to 0.9 cm2
PISA formation
Absent
Usually +
Always +
Mean gradient
<2–6 mmHg
6–12 mmHg
>12 mmHg
PHT
<150 ms
150–220 ms
>220 ms
Deceleration time
<517
517–759
>759
Tricuspid Regurgitation
RA/RV/IVC size
Normal
Variable
Dilated
Valve structure
Normal
Variable
Flail/poor coaptation
TR Jet area
<5 cm2
5–10 cm2
>10 cm2
Hepatic vein flow
Syst. dominance
Systolic blunting
Systolic reversal
TV doppler CW
Soft parabolic
Dense variable
Dense triangular
Vena contracta
Not defined
<0.7 cm
>0.7 cm
PISA radius
<0.5 cm
0.6–0.9 cm
>0.9 cm
Tricuspid Stenosis
RA size
Normal
Dilated
RV size
Normal
Variable
Dilated
Jet density CW
Faint
Dense
Dense
Jet Dec. CW
Steep
Variable
Delayed
CW jet velocity
<1 m/sec
1–2.5 m/sec
>2.5 m/sec
Peak gradient
<4 mmHg
4–25 mmHg
>25 mmHg
Mean gradient
<2 mmHg
2–7 mmHg
>7 mmHg
Aortic Regurgitation
LV size
Normal
Variable
Large
Diast. flow reversal
Brief, early diastole
Variable
Holodiastolic reversal
CW doppler spectral
Faint
Variable
Dense
CW doppler spectral
Faint
Variable
Dense
PHT
>550
500–300
<300
Vena contact
<0.3 cm
0.3–0.6 cm
>0.6 cm
Jet width/LVOT
<25–45%
45–65%
>65%
Jet CSA/LVOT CSA
<5%
5–59%
>60%
Regurgitant Vol
<30 ml
30–59 ml
>60 ml
Regurg. Vol (Max.)
<30
30–59
>60
Regurgitant fraction
<30%
30–55%
>55%
Reg. Orifice Area (ROA)
<0.10
0.10–0.29
>0.30
Deceleration time
<2.0 m/sec
2.0–3.5 m/sec
>3.5 m/sec
Aortic Stenosis
Aortic cusp separation
>20 mm
10–20 mm
<10 mm
Valve area planimetry
1.0–2.5 cm²
0.7–1.0 cm²
<0.7–1.0 cm²
Peak velocity
2–3 m/s
3–4 m/s
>4 m/s
Mean gradient
5–25 mmHg
25–50 mmHg
>50 mmHg
Continuity eq.
1.5–2 cm²
1.0–1.5 cm²
<1.0 cm²
Dimensionless Index
<0.25
Others
MPI
0.40–0.60
0.60–1.00
>1.00
dP/dT (mmHg/sec)
>1200
1000–1200
<1000
Pul. Hypertension
30–40 mmHg
40–70 mmHg
>70 mmHg