1st choice for Cardiovascular Imaging Software Solutions

QFR powered by 3dview iconQAngio XA 3D


  • Physiologic assessment (QFR) of one or more lesions at the same time
  • Innovative Acquisition Guide to determine viewing angles for good second projection
  • Easy wizard-guided workflow
  • Suitable for online use, during patient procedure
  • No need for adenosine and/or pressure wire
  • Fast calculation of the QFR
  • Analyses can be reopened for additional editing

Features included:

  • Can be applied to monoplane and biplane acquisitions
  • Accurate offset correction between the projections
  • Calibration based on Isocenter data
  • Efficient patented acquisition guiding tool suggesting optimal viewing angles for next acquisition
  • Calculation of optimal viewing angles for subsequent treatment
  • Easy wizard for intuitive guided workflows
  • QFR calculated from 3D QCA according to 3 different flow models:
    • Fixed flow QFR, using fixed flow velocity
    • Contrast QFR, using contrast frame count in an angiogram without hyperemia
    • Hyperemic QFR, using contrast frame count in angiogram, taken in adenosine-induced hyperemic condition
  • QFR “pull-back” curve along the analyzed vessel segment
  • Three QFR indices: Vessel, lesion and index QFR

Did you know that:

  • The 3D QCA is used for the QFR calculation

Clinical Apps

Medis and QAngio are registered trademarks of Medis Associated BV.

QFR is delivered by Medis in a strategic collaboration with Shanghai Jiao Tong University and Pulse Medical Imaging Technology Co., Ltd. In Shanghai, China.

QAngio XA 3D (which includes the QFR measurement) is CE cleared.

Research Apps

All Medis Suite XA apps in purple are for research use only.

QAngio XA1)

1) QAngio XA is not integrated in Medis Suite XA and runs as a standalone application.

QAngio is a registered trademark of Medis Associated BV.

QAngio XA is based on image processing algorithms developed at the Division of Image Processing, Department of Radiology, Leiden University Medical Center.

QAngio XA is CE- and FDA-cleared for market in Europe and US.