Aortic Valve

Question 1

What is the cut off for valve area for severe aortic stenosis

Answer 1

<1.0 cm2 or <0.6 cm2/m2

Question 2

What is the cut off for valve area for moderate aortic stenosis

Answer 2

1.0-1.5 cm2 or 0.6-0.85 cm2/m2

Question 3

What is the cut off for valve area for mild aortic stenosis?

Answer 3

> 1.5 cm2 or >0.85 cm2/m2

Question 4

Range for mean pressure gradient for moderate aortic stenosis

Answer 4

30-40 mmHg

Question 5

Cut off for mean pressure gradient for severe AS

Answer 5

> 40 mmHg

Question 6

What is the mean pressure gradient for mild AS?

Answer 6

<30 mmHg

Question 7

What is the peak pressure cut off for severe AS?

Answer 7

> 64 mmHg

Question 8

What is the range for moderate aortic stenosis for peak pressure?

Answer 8

40-64 mmHg

Question 9

Mild aortic stenosis peak pressure cut off?

Answer 9

<40 mmHg

Question 10

Dimmensionless index ratio for severe aortic stenosis?

Answer 10

<0.25

Question 11

Dimmensionless index ratio for moderate aortic stenosis?

Answer 11

0.25-0.5

Question 12

Dimmensionless index ratio for mild aortic stenosis?

Answer 12

> 0.5

Question 13

What is the AI jet:LVOT diameter ratio for mild AI?

Answer 13

<25%

Question 14

What is the AI jet:LVOT diameter ratio for moderate AI?

Answer 14

25-64%

Question 15

What is the AI jet:LVOT diameter ratio for severe AI?

Answer 15

> 65%

Question 16

What is the AI jet:LVOT area ratio for mild AI?

Answer 16

<5%

Question 17

What is the AI jet:LVOT area ratio for moderate AI?

Answer 17

5-59%

Question 18

What is the AI jet:LVOT area ratio for severe AI?

Answer 18

> 60%

Question 19

Vena contracta cut off for severe AI?

Answer 19

> 6mm

Question 20

Pressure half time cut off for mild AI?

Answer 20

> 500 ms

Question 21

Pressure half time cut off for moderate AI?

Answer 21

200-500 ms

Question 22

Pressure half time cut off for severe AI

Answer 22

<200 ms

Question 23

What is the EROA cut off for mild AI?

Answer 23

<0.1 cm2

Question 24

What is the EROA cut off for moderate AI?

Answer 24

0.1-0.3 cm2

Question 25

What is the EROA cut off for severe AI?

Answer 25

> 0.3 cm2

Question 26

Regurgitant volume for mild AI?

Answer 26

<30ml

Question 27

Regurgitant volume for moderate AI?

Answer 27

30-60 ml

Question 28

Regurgitant volume for severe AI?

Answer 28

> 60 ml

Question 29

Regurgitant fraction for mild AI?

Answer 29

<30%

Question 30

Regurgitant fraction for moderate AI?

Answer 30

30-50%

Question 31

Regurgitant fraction for severe AI?

Answer 31

> 50%

Question 32

Doppler flow pattern in the descending thoracic aorta that is seen in severe AI?

Answer 32

Holo diastolic flow reversal