@CoronaryDoc's Threads
What’s Your “Shear Stress”?
Want to Know More?
Relax & Read ⤵️ #Tweetorial by @CoronaryDoc + @arnavkumar
⚡️Coronary Wall Shear Stress in 12 Tweets ⚡️
1/12
Main Readings:
1) interventions.onlinejacc.org/content/early/…
2) ow.ly/XmD130mc9X8
3) link.springer.com/article/10.100…
#ACCImaging @ACCCardioEd
Want to Know More?
Relax & Read ⤵️ #Tweetorial by @CoronaryDoc + @arnavkumar
⚡️Coronary Wall Shear Stress in 12 Tweets ⚡️
1/12
Main Readings:
1) interventions.onlinejacc.org/content/early/…
2) ow.ly/XmD130mc9X8
3) link.springer.com/article/10.100…
#ACCImaging @ACCCardioEd
2/12
Wall shear stress (#WSS) is the frictional force of blood exerted tangential to endothelial surface of vessel wall & expressed in variety of units (1Pa=1N/m2=10 dynes/cm2)
It is derived from
• luminal geometry
• flow rate
• blood viscosity
• near wall velocity values
Wall shear stress (#WSS) is the frictional force of blood exerted tangential to endothelial surface of vessel wall & expressed in variety of units (1Pa=1N/m2=10 dynes/cm2)
It is derived from
• luminal geometry
• flow rate
• blood viscosity
• near wall velocity values
3/12
In vivo WSS calculations are derived from computational fluid dynamic (#CFD) simulations created from reconstructed 3D vessel geometries (from biplane angio/IVUS/OCT/CT/MR) combined with patient-specific pulsatile inlet/outlet velocity values (Doppler wire or other methods)
In vivo WSS calculations are derived from computational fluid dynamic (#CFD) simulations created from reconstructed 3D vessel geometries (from biplane angio/IVUS/OCT/CT/MR) combined with patient-specific pulsatile inlet/outlet velocity values (Doppler wire or other methods)
