CADScor® System: How Does it Work?

Quickly and Easily rule-out significant CAD with at least 96% Confidence (Negative Predictive Value)²

CADScor® System is based on ultrasensitive phonocardiography, which refers to an audio recording of the sounds made by the heart (heart sounds). Coronary artery disease (CAD) causes alterations to heart sounds. This novel technology listens to these sounds, some of which are not audible to the human ear.

When a patient with CAD develops an obstructive stenosis(es), coronary blood flow is interrupted, which creates turbulence or a small murmur.³ In addition, how the heart relaxes in between beats in the presence of CAD can also change features of the heart’s sounds.⁴ An integrated scoring algorithm developed in collaboration with Aalborg University evaluates the heart sounds, and the computer-based algorithm categorizes a patient as low or elevated risk of significant CAD.¹ The integrated, easy-to-use touch screen displays the individual CAD-score ranging from 0-99.

An Acoustic Assessment coupled with Advanced Computational Processing Drives the CAD-Score to Indicate Low or Elevated Significant CAD Risk in Patients2

Low Risk

40% of patients are identified as low risk5 by their CAD-score helping to streamline patient workflows. Seek alternative diagnosis for symptoms.

Elevated Risk

Patient deemed elevated risk of significant CAD by their CAD-score. Refer for further followup.

How to Perform a CADScor® System Assessment

View our step-by-step guide on how to perform a CAD-score measurement with CADScor® System.

How to perform a CAD-score test

Instructional Videos

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CADScor®System: First time setup

CADScor®System: Preparation for use

CADScor®System: The Test Recording

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CADScor® System Research, Development and Clinical studies

CADScor®System is based on 15+ years of R&D, covered by 45 patents, approved in Europe with CE-marking and has received FDA De Novo clearance as a diagnostic aid for symptomatic patients with suspected CAD. Multiple clinical studies with over 6,000 patients studied have been published to demonstrate CADScor®System’s performance.

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Schedule a Demo of CADScor® System

Schedule a free demo of CADScor System and learn how to quickly and easily Risk Stratify significant CAD in symptomatic patients at point of care.*

  1. Winther, S. et al. Diagnostic performance of an acoustic-based system for coronary artery disease risk stratification. Heart 2018: 104, 928-935
  2. User manual US-FDA v.12.Y, prevalence 10,7%
  3. Semmlow J, Rahalkar K. Acoustic detection of coronary artery disease. Annu Rev Biomed Eng. 2007;9:449-69. doi: 10.1146/annurev.bioeng.9.060906.151840. PMID: 17425468.
  4. Schmidt SE, Holst-Hansen C, Hansen J, Toft E, Struijk JJ. Acoustic Features for the Identification of Coronary Artery Disease. IEEE Trans Biomed Eng. 2015 Nov;62(11):2611-9. doi: 10.1109/TBME.2015.2432129. Epub 2015 May 12. PMID: 25974927.
  5. Bjerking LH et al.Eur Heart J. Published online September 1, 2024

*Risk stratify with at least 96% confidence (NPV)