Doppler study of the fetal middle cerebral artery at three locations: preliminary report.
Chang Gung Med J
; 24(7): 418-22, 2001 Jul.
Article
en En
| MEDLINE
| ID: mdl-11565247
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.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Arteria Cerebral Media
/
Monitoreo Fetal
Límite:
Adult
/
Female
/
Humans
/
Pregnancy
Idioma:
En
Revista:
Chang Gung Med J
Asunto de la revista:
MEDICINA
Año:
2001
Tipo del documento:
Article
País de afiliación:
Taiwán
Pais de publicación:
China