Regurgitant Fraction by PISA
Pulmonary Regurgitation
· Dr. Kenneth Gross ·
UNMC Advertisement
  Decrease Font Size  Default Font Size  Increase Font Size
Log In ·  Subscribe
Calcs>Pulmonary Regurgitation>RF by PISA>1
Calculator
Radius
cm
RV Jet VTI cm
Vmax m/sec
VA cm/sec
Angle degrees
RVOT Diam cm
PV VTI cm
 
ERO cm2
RV mls
SV mls
RF %

 
How to get a Regurgitant Fraction in Pulmonic Regurgitation.
 
Step 1:  Obtain a CFD of the PR Jet with a good PISA formation under zoomed view.  The Arch SAX, DTG PVLAX, or TG PVLAX views should provide a good view of the pulmonary valve.  The RVIO view can also be used, although Vmax cannot be obtained with this view.
 
Step 2: Measure the Diameter of the PISA radius. The radius is from the center of the PISA formation, typically from the center of the valve, to the first aliasing velocity.  If the PISA is small, try slightly decreasing the aliasing velocity (VA) which will increase the size of the PISA formation.
 
Step 3: Obtain a VTI of the Regurgitant Jet by CWD.    From the flow profile the Vmax and the VTI of the regurgitant jet can be obtained by tracing the diastolic flow profile.
 
Step 4: Obtain the angle of the PISA formation. The angle is typically 180 degrees.
 

Previous Page   Next Page
User Comments
 
Add Page Comment
Add a Comment to the Page
Page Link/Topic:  
Emoticon:
Compliment Comment Compliment Compliment Criticism Criticism Information Information
Topic:
Comment:
Add/Close:
 
This page has a rating of: 2.000
Rate This Page:                      
Previous Page Next Page
 
Be a Sponsor Contribute Content/Videos Advertisement Information
This page was generated in 0.004 seconds.