Extracting Fetal ECG from a Single Maternal Abdominal Record

Abstract

This work presents the variations of photoplethysmogram (ECG) morphology with age. ECG measurement is done noninvasively at the index finger on both right and left hands for a sample of erectile dysfunction (ED) subjects. Some parameters are derived from the analysis of ECG contour showed in association with age. The age is found to be an important factor that affects the contour of ECG signals which accelerates the disappearance of ECG’s dicrotic notch and ECG’s inflection point as well. Arterial compliance is found to be degraded with age due to the fall of arterial elasticity. This study approaches the establishment of usefulness of ECG’s contour analysis as an investigator to the changes in the elastic properties of the vascular system, and as a detector of early sub-clinical atherosclerosis.