PMID- 11924841
OWN - NLM
STAT- MEDLINE
DCOM- 20021009
LR  - 20041117
IS  - 0309-1902 (Print)
IS  - 0309-1902 (Linking)
VI  - 26
IP  - 1
DP  - 2002 Jan-Feb
TI  - The time relationships of the constituent components of the human 
      electrocardiogram.
PG  - 1-6
AB  - This paper reports the results of an examination of the timing relationships of 
      the principal constituent components of the human electrocardiogram (ECG). ECG 
      recordings were obtained from 21 healthy subjects, 10 male and 11 female aged 
      between 13 and 65 years, over a wide range of heart rates extending from 46 to 
      184 beats per minute (bpm). A wavelet transform method based on the Mexican Hat 
      wavelet was then used to precisely locate the positions of the onset, peak, 
      termination and the duration of individual components in the ECG. Component times 
      were then classified according to the heart rate associated with the cardiac 
      cycle to which the component belonged. Second-order equations in the square root 
      of the cardiac cycle time, TR-R of theform AT(1/2)R-R+BT R-R+C were fitted to the 
      data obtained for each component to characterize its timing variation. These 
      equations may be used to synthesize an ECG signal having a profile that varies 
      with heart rate in a manner which reflects the in vivo variation.
FAU - Burke, M J
AU  - Burke MJ
AD  - Department of Electronic and Electrical Engineering, Trinity College, Dublin, 
      Republic of Ireland.
FAU - Nasor, M
AU  - Nasor M
LA  - eng
PT  - Journal Article
PL  - England
TA  - J Med Eng Technol
JT  - Journal of medical engineering & technology
JID - 7702125
SB  - IM
MH  - Adolescent
MH  - Adult
MH  - Aged
MH  - Electrocardiography/*methods/*statistics & numerical data
MH  - Exercise Test
MH  - Female
MH  - Heart Rate/*physiology
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - *Models, Cardiovascular
MH  - Models, Statistical
MH  - Reproducibility of Results
MH  - Sensitivity and Specificity
MH  - Sex Factors
MH  - *Signal Processing, Computer-Assisted
MH  - Time Factors
EDAT- 2002/04/02 10:00
MHDA- 2002/10/10 04:00
CRDT- 2002/04/02 10:00
PHST- 2002/04/02 10:00 [pubmed]
PHST- 2002/10/10 04:00 [medline]
PHST- 2002/04/02 10:00 [entrez]
AID - 10.1080/03091900110096029 [doi]
PST - ppublish
SO  - J Med Eng Technol. 2002 Jan-Feb;26(1):1-6. doi: 10.1080/03091900110096029.