Cambridge Heart Inc. - HearTwave II
by Cambridge Heart Inc.

HearTwave® II Cardiac Diagnostic System

The HearTwave II system is a state-of-the-art stress testing platform that includes Cambridge Heart’s proprietary Microvolt T-Wave Alternanstm (MTWA) option, the only Medicare-reimbursable MTWA test on the market.     
Microvolt T-Wave Alternans (MTWA) enhances stress testing by incorporating a non-invasive, clinically-proven, reimbursable test that can help identify patients at risk for Sudden Cardiac Arrest (SCA).     
This comprehensive solution enables you to assess both ischemic and arrhythmic risk, allowing you to determine the best overall risk management strategy for your patients.

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10 months ago
on switch?
Turning on Cambridge mtwa heartwaveReply


a year ago
Error Code
TMX425/TM425 Treadmill Control Code 2Reply


a year ago
Error Codes
I have a customer that is getting TMX425 and TM425 error codes, anyone have any literature on this?Reply


  • MTWA – a simple, non-invasive test that can easily become part of your stress regimen for nuclear, echo and standard treadmill procedures
  • A state-of-the-art stress system with patented high-fidelity trace quality, patented diagnostic ECG grid, customized protocols, full disclosure, network connectivity, wireless and laser printer options, and compatibility with most treadmills, NIBP and echo systems
  • EMR support including PDF, HL7 and DICOM data formats to streamline clinical workflow


EKG/ECG TypeStress
Height53 in
Length 24.5 in
Weight240 lbs
Width19.5 in
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