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The Microvolt T-Wave Alternans™ for Q-Stress puts one of the most comprehensive cardiac risk
profiling systems in the industry at your fingertips. The MTWA combines the industry-leading Q-Stress cardiac stress testing system with Cambridge Heart’s® unique MTWA technology, creating a
clinically proven, reimbursable diagnostic test to help identify patients at risk for sudden cardiac
arrest.

Features and Benefits

• Detects small variations in repolarization during mildly elevated target HR ranges
• The Analytic Spectral Method® (ASM) analyzes the ECG in the frequency domain to
  detect every-other-beat patterns unique to patients at increased risk
• Noninvasive – test ideal for cardiologists and hospitals
• Convenient: test and bill the same day as a stress test
• Q-Stress uses the only MTWA technology approved for reimbursement
• MTWA testing is a AHA/ACC Class IIa testing guideline