iFR Scout
pullback technology

Contact information

* This field is mandatory

Contact details


Company details


Business details

By specifying your reason for contact we will be able to provide you with a better service.

How iFR Scout works

iFR Scout pullback technology reveals the physiologic profile of the entire vessel, so when you encounter diffuse disease or serial lesions you can make informed treatment decisions.
This angio shows both focal and diffuse disease.
Which areas are the most physiologically significant?
The iFR Scout pullback shows the most significant gradient in the mid-vessel lesion with diffuse proximal disease.

Make the shift from justification to guidance

Physiology is more than a justification tool. Hyperemia-free iFR Scout pullback technology makes it easier to assess physiology before, during and after your procedure.

iFR Scout pullback pre-intervention

The physician chose to treat the distal two focal lesions with two drug eluting stents.

iFR Scout pullback post-intervention

The iFR Scout pullback demonstrates a functional gain from 0.85 to 0.92.

iFR Scout key new features


  1. iFR Scout pullback assessment reveals the physiologic profile of the entire vessel
  2. Live iFR and Pd/Pa measurements provide real-time physiologic assessment
  3. Highlighted wave-free period shows where the iFR measurement is being calculated

iFR Scout pullback technology vs FFR pullback

Benefits of iFR Scout pullback technology

No hyperemic agent required
Simple graphical display of iFR values through the vessel
Maps the ischemic contribution of each lesion without the confounding effects observed with FFR pullback 1
Easily bookmark areas of interest

Limitations of FFR pullback

Requires IV hyperemia
Can be difficult to interpret
There is an interdependency of pressure gradients in serial lesions 1
Requires a second FFR pullback after treating the first lesion to assess the “updated” severities of the remaining lesions

How to perform an iFR Scout pullback


Related products

Verrata pressure guide wire


Untethered steering – from tip to clip


Experience the freedom of untethered steering from tip to clip.* Many factors impact wire performance including tip design, wire support, and torque response. Fundamental to guide wire handling is the ability to maneuver the wire untethered. The Verrata pressure guide wire quickly disconnects and reliably reconnects, freeing physicians to steer like a frontline wire.

iFR modality


Simplifies workflow


iFR modality simplifies workflow by providing a hyperemia-free measurement to assess lesion significance in as few as five heartbeats. Philips' proprietary iFR modality has a robust body of clinical evidence with over 9000 patients in numerous studies and peer-reviewed journal articles.*

* Data on file
  1. Nijjer S, et al. “Pre-Angioplasty Instantaneous Wave-Free Ratio (iFR) Pullback Provides Virtual Intervention and Predicts Hemodynamic Outcome for Serial Lesions and Diffuse Coronary Artery Disease. JACC: Cardiovascular Interventions 2014; 12: 1386-1396. 
  2. An iFR cut-point of 0.89 matches best with an FFR ischemic cut-point of 0.80 with a specificity of 87.8% and sensitivity of 73.0%. (iFR Operator’s Manual 505-0101.23)