Document Detail

Doppler study of the fetal middle cerebral artery at three locations: preliminary report.
MedLine Citation:
PMID:  11565247     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Middle cerebral artery (MCA) detection is useful in monitoring fetal well-being. Knowledge of Doppler flow velocity of the fetal MCA may assist in prenatal diagnosis and management of complicated pregnancies. The aim of this study was to compare the pulsatility index (PI) and resistance index (RI) of the MCA at different locations throughout pregnancy. METHODS: Uncomplicated singleton pregnancies accepted Doppler surveys of the bilateral MCA. PI and RI values of the proximal, middle, and distal 1/3 of the MCA were measured. The gestation periods for Doppler surveys were (1) 15 to 19 weeks; (2) 20 to 24 weeks; (3) 25 to 29 weeks; (4) 30 to 34 weeks; and (5) 35 to 40 weeks. The MCA flows at different locations and at different gestational aged were compared. RESULTS: There were 21 patients included. Average PI/RI values of the proximal, middle and distal MCA were 1.62/0.80, 1.69/0.81, and 1.71/0.83, which were non-significantly different. The PI/RI values of MCA in each gestational phase were also non-significantly different: (1) 1.70/0.84; (2) 1.72/0.82; (3) 1.68/0.83; (4) 1.65/0.81; (5) 1.62/0.77. CONCLUSIONS: The PI and RI values of the proximal MCA were non-significantly lower than those of middle and distal MCA. Middle MCA could represent three locations of MCA. A trend of lower PI/RI values with advancing gestation was noted.
C C Chang; Y Y Hsieh; H D Tsai
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Chang Gung medical journal     Volume:  24     ISSN:  2072-0939     ISO Abbreviation:  Chang Gung Med J     Publication Date:  2001 Jul 
Date Detail:
Created Date:  2001-09-21     Completed Date:  2001-10-11     Revised Date:  2008-12-16    
Medline Journal Info:
Nlm Unique ID:  101088034     Medline TA:  Chang Gung Med J     Country:  China (Republic: 1949- )    
Other Details:
Languages:  eng     Pagination:  418-22     Citation Subset:  IM    
Department of Obstetrics and Gynecology, China Medical College Hospital, Taichung, Taiwan.
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MeSH Terms
Fetal Monitoring*
Laser-Doppler Flowmetry
Middle Cerebral Artery / physiology*
Vascular Resistance

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