Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

DMST 253 Adult Echocardiography 1 > PSAX Doppler > Flashcards

PSAX Doppler Flashcards

1
Q

What is the order of images for PXAS doppler?

A
  1. Optimized 2D
  2. Optimized colour doppler
  3. Optimized spectral doppler (PW, CW)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the PSAX base routine order? 5

A
  1. AV colour
  2. TV colour
  3. TV CW (+/- TR Jet mmts)
  4. PV colour
  5. MV Colour
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are some things to remember when you get a PSAX AV colour image? 3

A
  1. Zoom
  2. Colour box slightly wider than AV annulus
  3. If there is regurgitation is present, You should see it here.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

When you zoom on PSAX AV colour what should you see?

A

A bit around the AV too

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are some tips to get the PSAX PV image? 2

A
  1. Same as PSAX but we’re centring the valve
  2. Start with a good 2D image
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

If we are getting a PSAX RV inflow image, and we can’t see the valve opening what does this mean?

A

We are not going to see the TR jet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are some things we need to remember when we get a PSAX TV colour clip? 4

A
  1. Sector down
  2. Sweep and assess for TR
  3. Colour box just as wide as annulus
  4. Keep FR up!
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What should we remember when we get a PSAX TV CW clip? 3

A
  1. Place the cursor through centre of TR jet, TV coaptation zone if no TR
  2. Baseline 1/4 from top with 2.4 m/sec below baseline even if no TR is seen
  3. Measure if parabolic jet seen
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Should we measure the the TR?

A

Yes because we can see the peak

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Should we measure this TR?

A

No because we would be guessing. See how the furies is right in the blue jet?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How normal is it for TR?

A

80% of us have TR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are some tips we should remember for PSAX PV colour?

A
  1. Make the colour box just wide enough
  2. Sweep and assess PV
  3. PV colour can also be done in PSAX
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

For a PSAX RVOT/PV Spectral doppler what do we need to show? What will we see if it is available?

A
  1. Pulmonary regurgitation
  2. RVOT
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

For PSAX RVOT/PV spectral doppler why do we need to see pulmonary regurgitation? And what do we need to do if we see it?

A
  1. We want to find higher velocities if they are there.
  2. CW
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

For PSAX RVOT/PV spectral doppler what should we see in the RVOT? What should we do with it? And what do we use?

A
  1. We will see slower velocities,
  2. This means we want to sample the RVOT using PW
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

For a PSAX RVOT PW image we need to look for a PV “closing click” what should these look like?

A

These are the really thing lines under the baseline

17
Q

What should the SV measure on the RV side of the PV?

A

~ 5mm

18
Q

For PSAX RVOT PW what should we measure?

A

Peak velocity or trace VTI

19
Q

For PSAX RVOT PW we need to assess what?

A

The RV outflow velocity, because many congenital abnormalities result in an increase in velocity in this area

20
Q

On the PSAX RVOT PW image, if PV has regurgitation what do we do?

A

It is ignored for PW because optimization of spectral should be on forward flow

21
Q

What will the PSAX RVOT PW also be used for in terms of calculation?

A

RV stroke volume calculation

22
Q

What do we measure for PSAX PV CW image?

A

Peak velocity, these are found in vessels screen of calc packages

23
Q

Where should the baseline be for PSAX PV CW image?

A

Baseline should be near top

24
Q

How should we adjust scale for PSAX PV CW?

A

Adjust scale to waveform seen

25
Q

What do we use CW for on a PSAX CW PV image? 2

A

We use it Interrogate the PV for
1. Pulmonary valve stenosis
2. Pulmonary valve regurgitation

26
Q

What are some PV non-routine measurements? 3

A
  1. Pulmonary acceleration time (PAT)
  2. PR end-diastolic velocity
  3. PR peak velocity
27
Q

What do we use Pulmonary acceleration time?

A

to calculate mPAP

28
Q

What do we use PR end- diastolic velocity?

A

To calculate PAEDP

29
Q

What do we use PR peak velocity for?

A

To calculate mPAP

30
Q

What should we remember in terms of getting a PSAX MV colour image? 3

A
  1. Colour box only slightly wider than MV
  2. Keep FR high
  3. Sweep and assess MV
31
Q

For a PSAX MV colour image, if we see MR what does this mean?

A

It means that we probably seen it in the PLAX image

32
Q

Why should we sweep the APEX?

A

Sweeping all the way to the apex in PSAX will allow you to detect this muscular ventricular septal defect (VSD), which sits at the apex

DMST 253 Adult Echocardiography 1 (27 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions