I just wanted to let you know that even though I'm looking quite old, I'm still a millenial.
So I just had a "New Year, New Me" moment and my resolution is to become a new and improved version of myself in a couple of weeks.
Don't worry, my wisdom won't change. You're still going to find the same useful information here. Stay tuned!
Effective Regurgitant Orifice by PISA
Calcs>Pulmonary Regurgitation>ERO by PISA>1
ERO = 2 * pi * r2
* VA * angle / 180
to get an ERO in PR.
1: Obtain a Zoomed CFD of the PV. In AR, a
PISA formation will occur. The distance from
the center of the PISA formation to it's first aliasing
velocity edge (where the color shifts from blue to
red) is the radius of the PISA formation.
2: Note the aliasing velocity. The aliasing
velocity is the velocity where if the flow exceeds
this velocity the flow will be displayed with colors
from the opposite scale.
3: Obtain a continuous wave doppler (CWD) of the
pulmonic valve. The CWD of the pulmonic
valve will yield a flow profile where, utilizing the
calipers (or you can trace it) to show the peak velocity.
4: Obtain an angle of the PISA formation: The
angle at the mitral valve is typically 120 degrees,
whereas the angle for the aortic or pulmonic valve
is typically 180 degrees.