07-09

Polyvinyl alcohol (PVA) particles

Particulate embolic

Image of Polyvinyl alcohol (PVA) particles

Three-panel learning framework

Recognition, context, and distinction

01

What am I looking at?

Visual recognition

Vial or syringe containing small, irregular PVA particles labeled by micron-size range, with a visibly less uniform particulate appearance than calibrated microspheres.

02

What does it do, and where will I see it?

Use & procedural context

Provides permanent distal arterial-bed embolization with irregular polyvinyl alcohol particles. Typical applications include tumor embolization, uterine artery embolization, and prostate artery embolization.

03

What most clearly distinguishes it from similar devices?

Key distinctions

PVA particles are irregular in shape and size compared with calibrated microspheres, making particle morphology a key distinction even when both are supplied by micron-size range.