Journal Title : International Journal of Modern Trends in Engineering and Science

Author’s Name : A Vasanthalakshmi  unnamed

Volume 03 Issue 07 2016

ISSN no:  2348-3121

Page no: 117-120

Abstract – Earlier studies have documented that coronary artery disease (CAD) produces weak murmurs, which might be detected through analysis of heart sounds. Optimizing risk assessment may reduce use of advanced diagnostic testing in patients with symptoms suggestive of stable coronary artery disease (CAD).Detection of diastolic murmurs from post stenosis coronary turbulence with an acoustic sensor placed on the chest wall can serve as an easy, safe, and low-cost supplement to assist in the diagnosis of CAD. The noise problems occurred using the hand held electronic stethoscope. We propose toevaluate the diagnostic accuracy of an acoustic test (CAD-score) to detect CAD and compare the normal, abnormal, series condition and coronary artery  score (CAS). All patients were testedwith the CAD-score system. The diagnostic performance of the current CAD score is  close  to  the widely used  ECG  exercise  test.    

Keywords— Coronary artery disease, Heart sounds, cardio vascular diagnostic, Sensitivity and specification 


  1. Genders TS, Steyerberg EW, Alkadhi H et al (2011) A clinical prediction rule for the diagnosis of coronary artery disease: validation, updating, and extension. Eur Heart J 32:1316–1330
  2. Dock W, Zoneraich S (1967) A diastolic murmur arising in a stenosed coronary artery. Am J Med 42:617–619
  3. Makaryus AN, Makaryus JN, Figgatt A et al (2013) Utility of an advanced digital electronic stethoscope in the diagnosis of coronary artery disease compared with coronary computed topographic angiography. Am J Cardiol 111:786–792
  4. Jensen JM, Voss M, Hansen VB et al (2012) Risk stratification of patients suspected of coronary artery disease: comparison of five different models. Atherosclerosis 220:557–562
  5. Zimmermann H, Schmidt SE, Hansen J, Hammershøi D, Møller H (2011) Acoustic coupler for acquisition of coronary artery murmurs. Comput Cardiol 38:209–212
  6. Semmlow J, Rahalkar K (2007) Acoustic detection of coronary artery disease. Annu Rev Biomed Eng 9:449–469.
Scroll Up