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Evaluation of the anatomic and hemodynamic abnormalities in tricuspid atresia before and after surgery using computational fluid dynamics.

Abstract Analysis of hemodynamics inside tricuspid atresia (TA) chamber is essential to the understanding of TA for optimal treatment. In this study, we introduced a combined computational fluid dynamics (CFD) to simulate blood flow in the left ventricle (LV) to study the diastolic flow changes in TA.Real-time 3-dimentional echocardiography loops (ECHO) were acquired in normal control group, in TA patients before surgery (pre-op group) and after surgery (post-op group). ECHO loops were reconstructed and simulated by CFD, the geometric, volumetric changes, and vortices in the LV were studies and compare among 3 groups.Compared with the control group, pre-op TA patients demonstrated significant LV remodeling, manifesting with smaller LV length, larger diameter, width and spherical index, as well as lager volumes; post-op TA group showed revisions in values of both geometric and volumetric measurements. CDF also demonstrated the abnormality of vortices in the pre-op TA patients and the alteration of existence and measurements of vortex in postoperation group.Echo-based CFD modeling can show the abnormality of TA in both LV geometric, volumetric measurements and intracardiac vortices; and CFD is capable to demonstrate the alterations of LV after Fontan and Glenn surgical procedure.
PMID
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Authors

Mayor MeshTerms

Hemodynamics

Regional Blood Flow

Keywords
Journal Title medicine
Publication Year Start




PMID- 29480841
OWN - NLM
STAT- MEDLINE
DCOM- 20180305
LR  - 20180305
IS  - 1536-5964 (Electronic)
IS  - 0025-7974 (Linking)
VI  - 97
IP  - 2
DP  - 2018 Jan
TI  - Evaluation of the anatomic and hemodynamic abnormalities in tricuspid atresia
      before and after surgery using computational fluid dynamics.
PG  - e9510
LID - 10.1097/MD.0000000000009510 [doi]
AB  - Analysis of hemodynamics inside tricuspid atresia (TA) chamber is essential to
      the understanding of TA for optimal treatment. In this study, we introduced a
      combined computational fluid dynamics (CFD) to simulate blood flow in the left
      ventricle (LV) to study the diastolic flow changes in TA.Real-time 3-dimentional 
      echocardiography loops (ECHO) were acquired in normal control group, in TA
      patients before surgery (pre-op group) and after surgery (post-op group). ECHO
      loops were reconstructed and simulated by CFD, the geometric, volumetric changes,
      and vortices in the LV were studies and compare among 3 groups.Compared with the 
      control group, pre-op TA patients demonstrated significant LV remodeling,
      manifesting with smaller LV length, larger diameter, width and spherical index,
      as well as lager volumes; post-op TA group showed revisions in values of both
      geometric and volumetric measurements. CDF also demonstrated the abnormality of
      vortices in the pre-op TA patients and the alteration of existence and
      measurements of vortex in postoperation group.Echo-based CFD modeling can show
      the abnormality of TA in both LV geometric, volumetric measurements and
      intracardiac vortices; and CFD is capable to demonstrate the alterations of LV
      after Fontan and Glenn surgical procedure.
CI  - Copyright (c) 2017 The Authors. Published by Wolters Kluwer Health, Inc. All
      rights reserved.
FAU - Chen, Li-Jun
AU  - Chen LJ
AD  - Department of Pediatric Cardiology.
FAU - Zhang, Yu-Qi
AU  - Zhang YQ
AD  - Department of Pediatric Cardiology.
FAU - Tong, Zhi-Rong
AU  - Tong ZR
AD  - Department of Cardiothoracic Surgery.
AD  - Institute of Pediatric Translational Medicine.
FAU - Sun, Ai-Min
AU  - Sun AM
AD  - Department of Medical Imaging, Shanghai Children's Medical Center, Shanghai
      Jiaotong University School of Medicine, Shanghai, China.
LA  - eng
PT  - Journal Article
PT  - Validation Studies
PL  - United States
TA  - Medicine (Baltimore)
JT  - Medicine
JID - 2985248R
SB  - AIM
SB  - IM
MH  - Adult
MH  - Computer Simulation
MH  - Echocardiography, Three-Dimensional
MH  - Female
MH  - Heart Ventricles/*diagnostic imaging/physiopathology
MH  - *Hemodynamics
MH  - Humans
MH  - Hydrodynamics
MH  - Male
MH  - Models, Cardiovascular
MH  - Organ Size
MH  - *Regional Blood Flow
MH  - Tomography, X-Ray Computed
MH  - Treatment Outcome
MH  - Tricuspid Atresia/*diagnostic imaging/physiopathology/*surgery
EDAT- 2018/02/27 06:00
MHDA- 2018/03/06 06:00
CRDT- 2018/02/27 06:00
PHST- 2018/02/27 06:00 [entrez]
PHST- 2018/02/27 06:00 [pubmed]
PHST- 2018/03/06 06:00 [medline]
AID - 10.1097/MD.0000000000009510 [doi]
AID - 00005792-201801120-00021 [pii]
PST - ppublish
SO  - Medicine (Baltimore). 2018 Jan;97(2):e9510. doi: 10.1097/MD.0000000000009510.