| 摘要 |
PURPOSE:To detect the constriction of the coronary arteries with high accuracy, by removing the cardiac sound data whose amplitude is larger than that due to constriction abnormality among cardiac sound data from analytical data. CONSTITUTION:The electrocardiographic signal corresponding to action potential and the cardiac sound signal corresponding to cardiac sound are respectively outputted from an electrocardiograph 10 and a phonocardiograph 14 and read in a CPU 20 through an A/D converter 18. The CPU 20 judges that the cardiac sound data whose amplitude is larger than that due to constriction abnormality among cardiac sound data is caused by noise such as respiratory sound and removes said cardiac sound from analytical data. The analytical result of the presence of constriction obtained by the CPU 20 is displayed on a display device 28.
|
