Document Detail


Color Doppler energy imaging in the diagnosis of fetal intracranial hemorrhage in the second trimester.
MedLine Citation:
PMID:  9339528     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Unlike conventional color Doppler imaging; color Doppler energy (or power Doppler) displays the intensity of the returning Doppler signal, is less dependent on the orientation of the blood vessel, and is therefore better able to detect low blood velocities. For these reasons it could be useful in some investigations which are difficult to perform, such as transvaginal evaluation of fetal brain vessels. We report a case of a fetal intracranial hyperechoic lesion detected at 26 weeks by transabdominal sonography in a severely growth-retarded fetus. There was absence of diastolic flow in the umbilical artery and low impedance to diastolic flow in the middle cerebral arteries. The fetus was further investigated by transvaginal sonography for the evaluation of the nature and localization of the lesion and an intraventricular hemorrhage in the right brain parenchyma with disorganized supratentorial brain structure was observed. As color Doppler energy imaging is more sensitive to slow flow, it was more reliable than conventional Doppler imaging in confirming the absence of flow within and around the hyperechoic lesion in contrast to the normal vascularity of the contralateral ventricular system. After informed parental counselling, the mother, for psychological reasons, asked to be delivered by Cesarean section. The fetus died 24 h after birth. The autopsy corroborated the ultrasonographic diagnosis. This case report confirms the accuracy of transvaginal ultrasonography in the diagnosis of intracranial hemorrhage and suggests a specific role for color Doppler energy imaging.
Authors:
S Guerriero; S Ajossa; V Mais; A Risalvato; M Angiolucci; F Labate; M P Lai; G B Melis
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Publication Detail:
Type:  Case Reports; Journal Article; Review    
Journal Detail:
Title:  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology     Volume:  10     ISSN:  0960-7692     ISO Abbreviation:  Ultrasound Obstet Gynecol     Publication Date:  1997 Sep 
Date Detail:
Created Date:  1997-11-20     Completed Date:  1997-11-20     Revised Date:  2005-11-16    
Medline Journal Info:
Nlm Unique ID:  9108340     Medline TA:  Ultrasound Obstet Gynecol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  205-8     Citation Subset:  IM    
Affiliation:
Department of Obstetrics and Gynecology, University of Cagliari, Sardinia, Italy.
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MeSH Terms
Descriptor/Qualifier:
Adult
Cerebral Hemorrhage / ultrasonography*
Cesarean Section
Fatal Outcome
Female
Fetal Diseases / ultrasonography*
Humans
Pre-Eclampsia / etiology
Pregnancy
Pregnancy Trimester, Second
Ultrasonography, Doppler, Color*
Ultrasonography, Prenatal / methods*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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