PMID- 33913291
OWN - NLM
STAT- MEDLINE
DCOM- 20210430
LR  - 20230701
IS  - 1001-5515 (Print)
IS  - 1001-5515 (Linking)
VI  - 38
IP  - 2
DP  - 2021 Apr 25
TI  - [The preliminary value of vector flow mapping on assessment of left 
      intraventricular pressure difference in patients with paroxysmal atrial 
      fibrillation].
PG  - 310-316
LID - 10.7507/1001-5515.202011004 [doi]
AB  - This study aims to explore the intraventricular pressure difference (IVPD) within 
      left ventricle in patients with paroxysmal atrial fibrillation (PAF) by using the 
      relative pressure imaging (RPI) of vector flow mapping (VFM). Twenty patients 
      with paroxysmal atrial fibrillation (PAF) and thirty control subjects were 
      enrolled in the study. Systolic and diastolic IVPD derived from VFM within left 
      ventricle and conventional echocardiographic parameters were analyzed. It was 
      found that the B-A IVPD of left ventricle in PAF patients showed the same pattern 
      as controls-single peak and single valley during systole and double peaks and 
      double valleys during diastole. Basal IVPD was the main component of base to apex 
      IVPD (B-A IVPD). The isovolumetric systolic IVPD was associated with early 
      systolic IVPD, early systolic IVPD was associated with late systolic IVPD, and 
      late systolic IVPD was associated with isovolumic diastolic IVPD (all P < 0.05). 
      The B-A IVPD and basal IVPD during isovolumetric systole, early systole, late 
      systole and isovolumetric diastole in PAF patients significantly decreased (all P 
      < 0.05). The study shows that the B-A IVPD pattern of the PAF group is the same 
      as controls, but systolic B-A IVPD and basal IVPD are significantly reduced in 
      PAF patients. VFM-derived RPI can evaluate left ventricular IVPD in PAF patients, 
      providing a visually quantitative method for evaluating left ventricular 
      hemodynamic mechanics in the patients with PAF.
FAU - Liu, Mei
AU  - Liu M
AD  - Department of Cardiology, West China Hospital, Sichuan University, Chengdu 
      610041, P.R.China.
FAU - Cai, Yuyan
AU  - Cai Y
AD  - Department of Cardiology, West China Hospital, Sichuan University, Chengdu 
      610041, P.R.China.
FAU - Huang, He
AU  - Huang H
AD  - Department of Cardiology, West China Hospital, Sichuan University, Chengdu 
      610041, P.R.China.
FAU - Zhong, Yue
AU  - Zhong Y
AD  - Department of Cardiology, West China Hospital, Sichuan University, Chengdu 
      610041, P.R.China.
FAU - Wang, Fang
AU  - Wang F
AD  - Department of Cardiology, West China Hospital, Sichuan University, Chengdu 
      610041, P.R.China.
LA  - chi
PT  - Journal Article
PL  - China
TA  - Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
JT  - Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = 
      Shengwu yixue gongchengxue zazhi
JID - 9426398
SB  - IM
MH  - *Atrial Fibrillation/diagnostic imaging
MH  - Diastole
MH  - Heart Ventricles
MH  - Humans
MH  - Ventricular Function, Left
MH  - Ventricular Pressure
PMC - PMC9927684
OTO - NOTNLM
OT  - intraventricular pressure difference
OT  - paroxysmal atrial fibrillation
OT  - relative pressure imaging
OT  - vector flow mapping
COIS- 利益冲突声明：本文全体作者均声明不存在利益冲突。
EDAT- 2021/04/30 06:00
MHDA- 2021/05/01 06:00
PMCR- 2021/04/25
CRDT- 2021/04/29 06:55
PHST- 2021/04/29 06:55 [entrez]
PHST- 2021/04/30 06:00 [pubmed]
PHST- 2021/05/01 06:00 [medline]
PHST- 2021/04/25 00:00 [pmc-release]
AID - swyxgcxzz-38-2-310 [pii]
AID - 10.7507/1001-5515.202011004 [doi]
PST - ppublish
SO  - Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2021 Apr 25;38(2):310-316. doi: 
      10.7507/1001-5515.202011004.