m3 ass intrvasc lesion assess

Label the IVUS image below

Adventitia???/?

What are the arrows pointing to in the images below?

dissection

What is happening in the image below

Flow Fractionated Reserve

The flow rate between two points one distal and proximal of a lesion that measures the flow capacity between two points while administering a vasodilator like nitrate or nitro to accurately calculate the amount of diminished flow to decide if stenting would benefit the patient.

What does FFR measure

iFR used without medication or vasodilator

FFR using vasodilator

What is the difference between iFR and FFR

60 - 100 mcg LCA

20 - 30 mcg RCA

What are the recommended adenosine does for LCA or RCA?

Maximal flow

Explain hyperemia?

vasodilator

How does adenosine create a hyperemic state?

just outside of the ostium of the vessel

distal portion is positioned distal to the occlusion

Where is the pressure wire zeroed and equalized/normalized and where is the distal portion of the wire positioned?

eccentric - one sided occlusion

concentric - completely surrounded or encapsulating lumen

What is the difference between eccentric and concentric lesions?

Post partem

When can spontaneous dissection occur