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Also called: Echo machine, Cardiac ultrasound machine, Echocardiography machine

Echo Machine: Choosing a Cardiac Ultrasound System

An echo machine is an ultrasound system set up to image the heart. Here is what separates it from a general system and what to test before you buy.

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What makes an ultrasound an echo machine

Phased array probe

About 1–5 MHz with a small footprint that fits between the ribs.

M-mode

A motion trace along one line over time, used for wall and valve movement.

Full Doppler

Colour, PW and CW Doppler — CW is needed for high velocities across valves.

ECG trace

Timing images and measurements to the cardiac cycle.

Cardiac calculations

Measurement and report packages for chambers, function and valves.

Dedicated echo system or shared general system

Dedicated cardiac systemGeneral system with cardiac option
Best forCardiology clinics and echo labsClinics doing occasional or focused cardiac scans
ProbesAdult and often paediatric phased array; TEE on some platformsOne phased array probe alongside convex and linear
DopplerStrong CW and PW performanceCheck that CW Doppler is included
SoftwareFull cardiac calculations and reportingBasic cardiac measurements

Buying checklist

  • Image quality on your own patients, including difficult windows.
  • CW Doppler availability and which probes support it.
  • ECG input and whether leads are included.
  • Cardiac measurement and report packages, and DICOM export to your PACS.
  • Paediatric or TEE probes if your practice needs them.
  • Probe warranty, local service and MDA registration for the system and every probe.

Focused cardiac scans vs full echo

A focused cardiac scan at the bedside answers simple questions — pericardial effusion, gross ventricular function, volume status — and many portable systems handle it. A comprehensive echocardiogram needs the full Doppler set, ECG and cardiac calculations of a system built for it.

Frequently asked questions

What is an echo machine?
An ultrasound system set up for echocardiography: imaging the heart with a phased array probe, M-mode and full Doppler including CW.
Can a general ultrasound machine do echo?
Many can with a phased array probe and a cardiac package, which suits focused cardiac checks. Comprehensive echo benefits from a system with strong CW Doppler, ECG and full cardiac calculations.
Do paediatric echo studies need a different probe?
Usually, yes — a smaller, higher-frequency phased array probe suits children and neonates. Ask which cardiac probes the platform supports.

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