Document Detail


Fetal color-coded tissue Doppler echocardiography: experiences with the "tracking method" in normal fetuses.
MedLine Citation:
PMID:  22656331     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: Ultrasound-based tissue Doppler imaging has opened new perspectives for non-invasive quantification of global, as well as regional, myocardial function. We therefore studied fetal hearts using the "tracking method" in order to assess its feasibility and changes of fetal myocardial velocities throughout gestation.
STUDY DESIGN: In 89 healthy fetuses color-coded tissue Doppler echocardiography (TDE) was prospectively conducted for further offline-analysis of global and regional myocardial function of the basal segment. Maximum tissue velocities at systole (S), in the early filling phase of diastole (E) and during atrial contraction (A) were estimated from three consecutive cardiac cycles.
RESULTS: Within a selected time limit of 15 min, raw data acquisition was possible in 60 of the 89 fetuses (67%). From the stored samples, velocities of S, E and A-wave could be obtained in 76% with good reproducibility for septal and right wall velocities. During gestation all velocities increased but to a greater extent at the right and left ventricular wall compared to the interventricular septum. The A-wave velocity was higher than E-wave velocity in all basal segments. Throughout gestation, the increase in E-wave was higher, resulting in an increase of the E-wave/A-wave ratio.
CONCLUSION: Tissue Doppler echocardiography using the tracking method in fetal hearts is practical during routine clinical examination, but it is time consuming and requires highly experienced observers The knowledge of myocardial velocities in normal pregnancies is essential in detecting pathologies.
Authors:
Manfred Vogt; Jan Müller; Julia Elmenhorst; Frauke Mühlbauer; Renate Oberhoffer
Publication Detail:
Type:  Journal Article     Date:  2012-05-30
Journal Detail:
Title:  European journal of obstetrics, gynecology, and reproductive biology     Volume:  164     ISSN:  1872-7654     ISO Abbreviation:  Eur. J. Obstet. Gynecol. Reprod. Biol.     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-09-04     Completed Date:  2013-01-22     Revised Date:  2013-04-04    
Medline Journal Info:
Nlm Unique ID:  0375672     Medline TA:  Eur J Obstet Gynecol Reprod Biol     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  10-4     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.
Affiliation:
Department of Pediatric Cardiology and Congenital Heart Disease, Deutsches Herzzentrum München, Technische Universität München, Germany.
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MeSH Terms
Descriptor/Qualifier:
Echocardiography, Doppler, Color / methods*
Female
Fetal Heart / physiology,  ultrasonography*
Gestational Age
Humans
Pregnancy
Prospective Studies
Reproducibility of Results
Comments/Corrections
Comment In:
Eur J Obstet Gynecol Reprod Biol. 2013 Mar;167(1):121-2   [PMID:  23395557 ]
Eur J Obstet Gynecol Reprod Biol. 2013 Mar;167(1):121   [PMID:  23116595 ]

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