Patent · US Active

Local FFR estimation and visualisation for improved functional stenosis analysis

US10111633B2 · kind B2 · utility

6Cited by

2References

8Claims

0Family size

Assignee

KONINIKLIJKE PHILIPS N.V. · NL

Inventors

Hannes NICKISCH · Hamburg, DE
Michael Grass · Hanstedt, DE
Holger Schmitt · Berlin, DE
Jan Timmer · Cologne, DE

Key dates

Filing date	Dec 4, 2014
Grant date	Oct 30, 2018
Priority date	—
Expiry date	Dec 15, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30172
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A system (IPS) and related method for fractional flow reserve, FFR, simulation. The simulation for a range of FFR values for a vasculature portion is based on a composite transfer function which is combined from a weighted sum of global effect transfer functions he, each representing a distinct physical effect that causes a pressure drop. The weights we are gotten from a previous training phase against pressure pi versus flow rate fi 5 sample measurements associated with respective vasculature geometries. The simulated range of FFR values is visualized in a graphics display (GD) as a function of pressure and flow rate values within respective intervals.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.