User:Gubon74/draft article on HFQRS
From Wikipedia, the free encyclopedia
HFQRS refers to the analysis of the high frequency spectral components of the mid QRS complex in an electrocardiogram (ECG).
Traditional exercise ECG testing is based on ST segment analysis, yet with limited diagnostic accuracy particularly in women [1]. Several attempts have been made to expand the diagnostic capabilities of the ECG.
Scientific evidence indicates that identification of depolarization abnormalities, which can be quantified using analysis of high frequency QRS signals, is more accurate in detecting Coronary Ischemia (known as Cardiac Ischemia or Myocardial Ischemia) than identification of ST segment deviations [2]. The physiological significance of the high frequency components of the QRS complex was first described in the 1980’s. Since then, it has been extensively researched and clinically validated as an important diagnostic tool.