Pulse Volume Recording (PVR)
Pulse Volume Recording (PVR) is a non-invasive vascular diagnostic technique that provides precise assessment of blood flow in the limbs. Using blood pressure cuffs, PVR delivers reliable and reproducible results for vascular health assessment, helping clinicians diagnose and monitor peripheral artery disease (PAD) and other vascular conditions.
Pulse Volume Recording (PVR) is a non-invasive, air-plethysmographic vascular test. A blood pressure cuff senses the small change in limb volume that occurs with each heartbeat and records it as a waveform, mapping blood flow segment by segment. Because it reads volume change rather than compressing the artery, PVR stays reliable even in calcified, non-compressible vessels — valuable for diagnosing peripheral artery disease (PAD) and localizing blockages. A PVR waveform is a graphical representation of the blood volume changes in a limb over time.
- Non-invasive and painless for the patient
- Provides both qualitative waveforms and quantitative data
- Remains accurate where the ankle-brachial index is unreliable — in the calcified, non-compressible vessels common to diabetes and chronic kidney disease
Cuffs are placed on the big toes, ankles, calves, upper and lower thighs, and arms. Each cuff inflates to a low reference pressure, then registers the pulsatile change in limb volume with every heartbeat. The system displays a waveform for each level in real time, mapping perfusion along the limb.
- Automated calibration for every channel and test
- High-fidelity pressure measurement for accurate readings
- Real-time waveform display and data export
PVR is invaluable for:
- Detecting and grading peripheral arterial disease (PAD)
- Assessing arterial occlusions and stenosis
- Monitoring post-intervention outcomes
- Evaluating limb perfusion in diabetic and high-risk patients
- Supporting clinical decision-making with objective, reproducible data
PVR is endorsed by major vascular and cardiovascular societies as an essential component of comprehensive vascular assessment.
VasoGuard systems feature state-of-the-art PVR technology with automated workflows, high-precision sensors, and intuitive software. Clinicians benefit from real-time waveforms, automated analysis, and seamless data export for EMR integration.
- Independent, calibrated pressure channels for each limb
- Automated workflow and intuitive user interface
- Comprehensive data export for EMR and research
- Continuous software updates and support