Waveforms

Question 1

What is the significance of this image?

Answer 1

Nothing it is a normal low to moderate resistance waveform for the CCA

Question 2

What is the significance of this image?

Answer 2

1. Diastolic reversal
2. Stenosis distal
3. Increased resistance

Question 3

What is the significance of this image?

Answer 3

1. Blunted flow
2. Proximal stenosis

Question 4

What waveform is this?

Answer 4

1. Subclavian artery

Question 5

What does this waveform indicate to you?

Answer 5

This is a person doing a temporal tap

Question 6

What is your analysis of this waveform?

Answer 6

Complete reversal of the flow, due to a subclavian steal. Or a proximal steal

Question 7

What is abnormal about this flow?

Answer 7

1. Velocity is too low
2. Little to no diastolic flow
3. Distal stenosis or occlusion

Question 8

Where would you find this spectral tracing in the diseased ICA sample here?

Answer 8

Post stenotic turbulence

Question 9

What component of this ECA waveform is abnormal?

Answer 9

1. Increased diastolic flow
2. Collateral flow/ ICA occlusion

Question 10

What is happening in this image?

Answer 10

1. This is a low resistance waveform should be high resistance and multiphasic
2. This is a dampened waveform indicating a proximal stenosis/ occlusion

Question 11

What is the significance of this image?

Answer 11

1. Trickle flow and severe stenosis seen here

Question 12

What is the significance of this image?

Answer 12

1. All we are picking up here is the pulsations of this waveform
2. This is a full occlusion

Question 13

What does this vertebral signal indicate? What point in the cardiac cycle does this reversal occur?

Answer 13

1. Abnormal flow
2. Indicates pre steal
3. reversal in early systole

Question 14

What does this vertebral signal indicate to you? what are common levels that this may occur?

Answer 14

1. 200 is not normal 50 is normal
2. This is some sort of compensatory flow