PMID- 27824610
OWN - NLM
STAT- MEDLINE
DCOM- 20181123
LR  - 20210212
IS  - 1862-278X (Electronic)
IS  - 0013-5585 (Linking)
VI  - 63
IP  - 2
DP  - 2018 Mar 28
TI  - A rapid approach to assess cardiac contractility by ballistocardiogram and 
      electrocardiogram.
PG  - 113-122
LID - 10.1515/bmt-2015-0204 [doi]
AB  - In this paper, we propose a rapid assessment on cardiac contractility by using 
      the time interval between the I wave of ballistocardiogram (BCG) and the R wave 
      of electrocardiogram (ECG) which is referred to as the RI interval. The whole 
      work can be divided into two parts. First, the correlation between the RI 
      interval and the ejection fraction (EF), which is a clinical index to assess 
      systolic performance, was computed. For 39 subjects, the correlation coefficient 
      is -0.54 (p<0.001). Moreover, RI intervals of heart failure (HF) patients and 
      healthy subjects were measured, and a significant difference was found among 
      different New York Heart Association (NYHA) classes and the healthy group. 
      Second, the beat-to-beat correlation analysis between the RI interval and the 
      pre-ejection period (PEP), which is a parameter of systolic time interval to 
      evaluate the cardiac contractility, was calculated. For 4578 heart beats across 
      eight healthy subjects, the correlation coefficient is 0.85 (p<0.001). As a 
      conclusion, these results indicate that the RI interval can be used as a 
      noninvasive assessment of cardiac contractility.
FAU - Zhang, Xianwen
AU  - Zhang X
AD  - Key Laboratory of Particle and Radiation Imaging, Tsinghua University, Ministry 
      of Education, Beijing, 100084, China.
FAU - Zhang, Liyan
AU  - Zhang L
AD  - Key Laboratory of Particle and Radiation Imaging, Tsinghua University, Ministry 
      of Education, Beijing, 100084, China.
FAU - Wang, Kun
AU  - Wang K
AD  - Key Laboratory of Particle and Radiation Imaging, Tsinghua University, Ministry 
      of Education, Beijing, 100084, China.
FAU - Yu, Chao
AU  - Yu C
AD  - Peking University People's Hospital, Beijing, 100084, China.
FAU - Zhu, Tiangang
AU  - Zhu T
AD  - Peking University People's Hospital, Beijing, 100084, China.
FAU - Tang, Jintian
AU  - Tang J
AD  - Key Laboratory of Particle and Radiation Imaging, Tsinghua University, Ministry 
      of Education, Beijing, 100084, China.
LA  - eng
PT  - Journal Article
PL  - Germany
TA  - Biomed Tech (Berl)
JT  - Biomedizinische Technik. Biomedical engineering
JID - 1262533
SB  - IM
MH  - Ballistocardiography/*methods
MH  - Electrocardiography/*methods
MH  - Heart Failure
MH  - Heart Rate/*physiology
MH  - Humans
MH  - *Myocardial Contraction
OTO - NOTNLM
OT  - RI interval
OT  - ballistocardiogram
OT  - cardiac contractility
OT  - heart failure
EDAT- 2016/11/09 06:00
MHDA- 2018/11/24 06:00
CRDT- 2016/11/09 06:00
PHST- 2015/08/02 00:00 [received]
PHST- 2016/10/06 00:00 [accepted]
PHST- 2016/11/09 06:00 [pubmed]
PHST- 2018/11/24 06:00 [medline]
PHST- 2016/11/09 06:00 [entrez]
AID - bmt-2015-0204 [pii]
AID - 10.1515/bmt-2015-0204 [doi]
PST - ppublish
SO  - Biomed Tech (Berl). 2018 Mar 28;63(2):113-122. doi: 10.1515/bmt-2015-0204.