Assessing the diagnostic accuracy of cardisiography in the diagnosis of coronary heart disease: CSG-DR study (A pilot study) - Takeaways - MDSpire

Evaluating the Diagnostic Precision of Cardisiography for Coronary Artery Disease: Insights from the CSG-DR Pilot Study

  • By

  • Rafael A. Guillén-Marmolejos

  • Rodolfo A. Núñez-Musa

  • Alberto J. Núñez-Selles

  • Ana J. Santos-Rondón

  • Miguel Arias-Ceballos

  • the CSG Group

  • July 21, 2026

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  • 1

    Cardisiography (CSG) is an AI-enhanced vectorcardiography technique aimed at improving CAD detection in low-resource settings.

  • 2

    In a pilot study, CSG demonstrated a sensitivity of 96.5% for detecting coronary lesions, significantly higher than the 6.9% sensitivity of ECG.

  • 3

    The study enrolled 104 patients aged 40 and above, all referred for coronary computerized tomography angiography (CCTA) due to suspected CAD.

  • 4

    CCTA identified coronary lesions classified as CAD-RADS 1–3 in 29 patients, with CSG achieving 100% sensitivity for CAD-RADS 1 and 3.

  • 5

    The findings suggest that CSG may serve as a triage tool before CCTA, but larger studies are needed to validate its clinical utility.

Original Source(s)

Assessing the diagnostic accuracy of cardisiography in the diagnosis of coronary heart disease: CSG-DR study (A pilot study)

  • by Rafael A. Guillén-Marmolejos, Rodolfo A. Núñez-Musa, Alberto J. Núñez-Selles, Ana J. Santos-Rondón, Miguel Arias-Ceballos, the CSG Group

  • July 21, 2026

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