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Fetal heart ventricle mass obtained by STIC acquisition combined with inversion mode and VOCAL.
MedLine Citation:
PMID:  21370304     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Estimation of fetal heart ventricle mass is important for fetal cardiac evaluation in cases of structural or functional cardiac disorders or extracardiac factors. It may join other cardiac parameters to ascertain the severity and prognosis of such disorders, or the nature and timing of intervention. We applied a novel technique combining STIC with 3D inversion mode and VOCAL for fetal cardiac mass assessment in healthy fetuses in the 2(nd) and 3(rd) trimesters. METHODS: Scans were performed with the Voluson 730 Expert (GE Medical Systems, Kretz, Austria) and E8 4D ultrasound systems. STIC acquisition was performed during fetal quiescence with abdomen uppermost, at an angle of 30-50°, without color Doppler mapping. Myocardial volume measurements were performed in post-processing using virtual organ computer-aided analysis (VOCAL) mode, set to 15°. Beginning with the heart in four-chamber view at end diastole, trace was drawn manually including the myocardium and interventricular septum. Inversion mode colors the intraventricular (anechoic, fluid-filled) voxels; this intraventricular volume was subtracted automatically from the total. Mass is determined by multiplying the result by the estimated fetal myocardial density (1.050 g/cm(3) ). The process is repeated for right and left ventricles. RESULTS: 106 patients from 21-38 weeks' gestation were accrued and scatterplots of fetal cardiac ventricle mass distribution were created. Several cases of fetuses with disordered cardiac ventricle (SVT, HLH, dilated cardiomyopathy, twin-to-twin transfusion syndrome, Ebstein anomaly, non-immune hydrops fetalis, septated right atrium, diaphragmatic hernia) were examined. Ventricle mass measures were markedly affected as compared with normal cases of similar gestational age. CONCLUSIONS: STIC acquisition combined with inversion mode and VOCAL is a feasible method of cardiac ventricle mass quantification. This methodology may have added value in fetal cardiac evaluation in cases of anatomic malformation or cardiac dysfunction, or in cases of maternal diabetes. Copyright © 2011 ISUOG. Published by John Wiley & Sons, Ltd.
Authors:
Baruch Messing; Sarah M Cohen; Dan V Valsky; Ori Shen; Daniel Rosenak; Michal Lipschuetz; Simcha Yagel
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-2
Journal Detail:
Title:  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology     Volume:  -     ISSN:  1469-0705     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9108340     Medline TA:  Ultrasound Obstet Gynecol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 ISUOG. Published by John Wiley & Sons, Ltd.
Affiliation:
Department of Obstetrics and Gynecology, Hadassah-Hebrew University Medical Centers, Jerusalem, Israel.
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