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USCOM stands for Ultrasonic Cardiac Output Monitor. It is a specialized ultrasound device designed for non-invasive, high fidelity measurement of cardiovascular function at bedside. It measures blood flow across the heart valves using continuous wave Doppler ultrasound.

Its real-time, precise, intuitive and reproducible features allow physicians to acquire objective and accurate hemodynamic parameters, such as SV, CO, CI, SVR and SMII etc. It is the only truly non-invasive, accurate system of hemodynamic measurement.

Brand Introduction

Uscom Limited was founded by its current CEO, Associate Professor Rob Phillips in 1999. It’s headquarter is located in Sydney, Australia.

The USCOM 1A is a simple to use, cost-effective and non-invasive advanced hemodynamic monitor that measures cardiovascular function, detects irregularities and is used to guide treatment. The USCOM 1A device is a technology leader in Pediatrics, Emergency, Intensive Care Medicine and Anesthesia, and is the device of choice for management of adult and pediatric sepsis, hypertension, heart failure and for the guidance of fluid, inotropes and vasoactive cardiovascular therapy.

Brand Introduction

  • Broad-beam CW Doppler Monitor provides fast, accurate, reproducible and visualized hemodynamic parameters.
  • Precise 2.2 MHz Transducer; scan in 3 planes to locate aortic and pulmonary valve, directly measure the parameters related to stroke volume.
  • The FlowTracer - USCOM's patented software can accurately calculate the velocity of blood flow with a precision trace of the ultrasound flow profile.
  • Patented parameter – SMII (INO) is the reliable parameter to evaluate patient’s ventricle contraction ability.

The advanced Doppler Monitor

USCOM 1A device’s unique non-invasive method of cardiac monitoring is a safe, painless and efficient way of measuring how well the heart is functioning. It is extremely easy to use, so after a few times of practice you are able to successfully acquire correct parameters.

  • CW Doppler Ultrasound
  • Real-time SV measurement
  • Real-time SV measurement
  • User defined multi-beat signal averaging
  • USCOM Valve Area Algorithm
  • Patented SMII parameter
  • MAP, Hb and SpO2 Value Input
  • Configurable Report
  • Consumable Free

Targeting Aortic Valve Targeting Pulmonary Valve

Clinical Approach

Fluid Management

Appropriate fluid management and fluid resuscitation result in better treatments. Lack of fluid or fluid overload will increase the complication and mortality rates. It is a difficult question for physicians to determine the appropriate timing to add or stop volume. The USCOM 1A device’s personalized SV management offers reliable fluid responsiveness forecast. It is remarkable for cardiac arrhythmia, high cardiac output, low volume, hypertension, sepsis and mechanical ventilation etc. in both pediatric and adult patients.


Sepsis is a life-threatening illness caused by the body’s response to an infection. The early detection and interference in hemodynamic changes give physicians chances to try fluid therapy, positive inotrope and vasoactive medicines, which is crucial for preventing septic shock and organ failure as well as improving the prognosis.


Accurately measure CO and SVR is the key to treat hypertension, heart failure and pre-eclampsia. USCOM 1A device’s fast, precise and non-invasive method to monitor patient’s overall hemodynamic status is changing our ways for hypertension treatments.

Saving lives, minimizing costs

USCOM 1A device helps us better understand our circulation and is actually saving more lives. It benefits not only the patients from the advanced technology, but also the hospitals from the reduced time and costs.

Hemodynamic Parameters


SV ( cm3 ) Stroke Volume

SVI ( mI/m2 ) Stroke Volume Index

SVV ( % ) Stroke Volume Variability

FTc ( ms ) Corrected Flow Time

CO ( l/min ) Cardiac Output

CI ( l/min/m2) Cardiac Index

HR ( bpm ) Heart Rate

SMII ( W/m2 ) Inotropy Index

CPO (W) Cardiac Power

SVR ( d.s.cm-5 ) Systemic Vascular Resistance

SVRI ( d.s.cm-5m2 ) Systemic Vascular Resistance Index

OXYCOMe ( optional ) OXYCOMe (optional)

DO2 ( mI/min ) Oxygen Delivery


  • Touch screen operation
  • Durable transducer
  • Data output
  • Rechargeable Battery
  • Compact and easily transportable

Academic Exchange

《Cardiac Output Measurements in Septic Patients: Comparing the Accuracy of USCOM to PiCCO》

Author: Sophia Horster, Hans-Joachim Stemmler, Nina Streck Published:Critical Care Research and Practice 2012

《Clinical validation of the non-invasive cardiac output monitor USCOM-1A in critically ill patients》

Author: L. E. M. van Lelyveld-Haas, A. R. H. van Zanten, G Published:European Journal of Anaesthesiology 2008

《Decreased Mortality, Morbidity and Emergency Transport in Septic Shock; A New Protocol Based on Advanced Noninvasive Haemodynamics and Early Antibiotics》

Author: Smith, Brendan; Phillips, Robert; Madigan, Veronic Published:Society of Critical Care Medicine and Lippincott Williams & Wilkins 2012

《Evolution of haemodynamics and outcome of fluid-refractory septic shock in children》

Author: Akash Deep, Chulananda D. A. Goonasekera, Yanzhong Published:Intensive Care Med 2013

《Non-invasive Cardiac Output Measurement in Heart Failure Subjects on Circulatory Support》

Author: Rob Phillips, Peter Lichtenthal, Julie Sloniger, D Published:International Anesthesia Research Society 2009

《Non- invasive Doppler ultrasonography for assessing cardiac function: can it replace the Swan-Ganz catheter?》

Author: Saurabh Jain, Alexander Allins, Ali Salim, Amir Va Published:The American Journal of Surgery 2008

《Non-invasive stroke volume measurement and passive leg raising predict volume responsiveness in medical ICU patients: an observational cohort study?》

Author: Steven W Thiel, Marin H Kollef and Warren Isakow Published:Critical Care 2013

《Validation of an Ultrasound Cardiac Output Monitor as a Bedside Tool for Pediatric Patients》

Author: Fernando Beltramo, Jondavid Menteer, Asma Razavi, Published:Pediatr Cardiol 2015

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