This is a tool for calculating the stenosis grade according to the NASCET criteria.

Formula

NASCET = (A-B)/A

Calculator

Diameter distal of stenosis (A)
Diameter in stenosis (B)
Stenosis [% NASCET]

Disclaimer

All calculations must be confirmed before use. The author makes no claims of the accuracy of the information contained herein.

Author

Bernd Brägelmann, Bremen 2017