PMID- 28366419
OWN - NLM
STAT- MEDLINE
DCOM- 20180620
LR  - 20180709
IS  - 1532-8430 (Electronic)
IS  - 0022-0736 (Linking)
VI  - 50
IP  - 5
DP  - 2017 Sep-Oct
TI  - An evaluation of planarity of the spatial QRS loop by three dimensional 
      vectorcardiography: Its emergence and loss.
PG  - 652-660
LID - S0022-0736(17)30080-8 [pii]
LID - 10.1016/j.jelectrocard.2017.03.016 [doi]
AB  - AIMS: To objectively characterize and mathematically justify the observation that 
      vectorcardiographic QRS loops in normal individuals are more planar than those 
      from patients with ST elevation myocardial infarction (STEMI). METHODS: 
      Vectorcardiograms (VCGs) were constructed from three simultaneously recorded 
      quasi-orthogonal leads, I, aVF and V(2) (sampled at 1000 samples/s). The 
      planarity of these QRS loops was determined by fitting a surface to each loop. 
      Goodness of fit was expressed in numerical terms. RESULTS: 15 healthy individuals 
      aged 35-65years (73% male) and 15 patients aged 45-70years (80% male) with 
      diagnosed acute STEMI were recruited. The spatial-QRS loop was found to lie in a 
      plane in normal controls. In STEMI patients, this planarity was lost. Calculation 
      of goodness of fit supported these visual observations. CONCLUSIONS: The degree 
      of planarity of the VCG loop can differentiate healthy individuals from patients 
      with STEMI. This observation is compatible with our basic understanding of the 
      electrophysiology of the human heart.
CI  - Copyright (c) 2017 Elsevier Inc. All rights reserved.
FAU - Ray, Dipanjan
AU  - Ray D
AD  - Dept. of Physiology, Calcutta Medical College, 88, College Street, Calcutta, 
      India.
FAU - Hazra, Sandipan
AU  - Hazra S
AD  - Dept. of General Medicine, RG Kar Medical College, 1, KhudiramBasuSarani, 
      Calcutta, India.
FAU - Goswami, Damodar Prasad
AU  - Goswami DP
AD  - Dept. of Mathematics, Narula Institute of Technology, 81, Nilgunj Road, Agarpara, 
      West Bengal, India.
FAU - Macfarlane, Peter W
AU  - Macfarlane PW
AD  - University of Glasgow, Inst of Health and Wellbeing, Electrocardiology Group, 
      Royal Infirmary, Glasgow, G31 2ER, UK.
FAU - Sengupta, Arnab
AU  - Sengupta A
AD  - Dept. of Physiology, Calcutta Medical College, 88, College Street, Calcutta, 
      India. Electronic address: arnabseng@gmail.com.
LA  - eng
PT  - Journal Article
DEP - 20170322
PL  - United States
TA  - J Electrocardiol
JT  - Journal of electrocardiology
JID - 0153605
SB  - IM
MH  - Adult
MH  - Aged
MH  - Case-Control Studies
MH  - Female
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - ST Elevation Myocardial Infarction/*diagnosis
MH  - Vectorcardiography/*methods
OTO - NOTNLM
OT  - Healthy controls
OT  - QRS plane
OT  - STEMI
OT  - Uniform double layer
OT  - Vectorcardiogram
EDAT- 2017/04/04 06:00
MHDA- 2018/06/21 06:00
CRDT- 2017/04/04 06:00
PHST- 2016/11/19 00:00 [received]
PHST- 2017/04/04 06:00 [pubmed]
PHST- 2018/06/21 06:00 [medline]
PHST- 2017/04/04 06:00 [entrez]
AID - S0022-0736(17)30080-8 [pii]
AID - 10.1016/j.jelectrocard.2017.03.016 [doi]
PST - ppublish
SO  - J Electrocardiol. 2017 Sep-Oct;50(5):652-660. doi: 
      10.1016/j.jelectrocard.2017.03.016. Epub 2017 Mar 22.