FlowMet Peripheral Blood Flow Monitoring System for Intraprocedural Monitoring

The FlowMet system provides continuous and objective blood flow measurements during your procedure, so you know your work is working.

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Challenges of Gauging Impact

When it comes to gauging the impact of a peripheral arterial disease (PAD) revascularization, angiography cannot fully assess distal blood flow.1,2

Is there a way to reduce procedural uncertainty by directly measuring blood flow?

How FlowMet Can Help*

  • Provides real-time, quantitative measurement of volumetric blood flow to distal tissue bed3,4
  • Supplements angiography to support procedural insights4
  • Continuously monitors blood flow changes throughout the intervention without inhibiting workflow4
  • Noninvasive, simple, and easy to use

FlowMet system disposable sensor affixed to a digit, connected to the system tablet

How the System Works

Introduction to the FlowMet System

Learn about the FlowMet system and understand how laser speckle imaging provides continuous, real-time blood flow measurements to help inform your procedure.

Quantify and Characterize Blood Flow

Working together, these two measurements allow for the observation of baseline values and changes in blood flow throughout the procedure.4

  1. Flow value quantifies volumetric blood flow through a calibrated numeric scale.4
  2. Flow waveform reflects real-time changes in blood flow during the cardiac cycle, enabling the characterization of blood flow as normal or abnormal.5

FlowMet screen with callouts for flow value and velocity waveform

How Disease Impacts Waveforms

  • The presence of vascular disease alters waveforms.
  • The more severe the disease, the more abnormal the waveform will appear.5
  • By providing a flow waveform, the FlowMet System enables the characterization of blood flow as normal or abnormal.
Images are for illustration purposes only and may vary according to sensor location and disease stage.

Vessel disease and corresponding waveform example images

FlowMet Disposable  Sensor Technology

  • The disposable FlowMet sensor is affixed to the patient's toe at the beginning of the procedure.
  • Laser light is transmitted through one side of the digit and received on the other.4
  • Using laser speckle imaging, the system continuously quantifies changes in blood flow during a case.
  • Blood cell movement alters the speckle pattern, and these real-time changes are reflected in the measurements on-screen.4

Disposable sensor affixed to a digit and laser speckle image

Ordering Information




FlowMet Peripheral Blood Flow Monitoring System


FlowMet Peripheral Blood Flow Monitoring System Reusable Cable


FlowMet Peripheral Blood Flow Monitoring System Disposable Sensors (5-pack)

Additional Resources

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FlowMet device is only cleared for measuring blood flow as an intraprocedural monitoring device, and is intended to supplement angiographic assessment and other vascular assessment tools. FlowMet is not indicated to diagnose disease.



Kim AH, Shevitz AJ, Morrow KL, et al. Characterizing tissue perfusion after lower extremity intervention using two-dimensional color-coded digital subtraction angiography. J Vasc Surg. November 2017;66(5):1464-1472.


Lou WS, Su HB, Huang KY, et al. Evaluation of Distal Hemodynamic Changes of Lower Extremity after Endovascular Treatment: Correlation between Measurements of Color-Coded Quantitative Digital Subtraction Angiography and Ankle-Brachial Index. J Vasc Interv Radiol. June 2016;27(6):852-858.


Choi B, Ramirez-San-Juan JC, Lotfi J, Stuart Nelson J. Linear response range characterization and in vivo application of laser speckle imaging of blood flow dynamics. J Biomed Opt. July-August 2006;11(4):041129.


Medtronic data on file.


Sibley RC 3rd, Reis SP, MacFarlane JJ, Reddick MA, Kalva SP, Sutphin PD. Noninvasive Physiologic Vascular Studies: A Guide to Diagnosing Peripheral Arterial Disease. Radiographics. January-February 2017;37(1):346-357.