Magnetic resonance imaging of the cerebral aqueduct. Signal intensity time curves demonstrated by fast acquisition with multiple excitation (FAME).
Invest Radiol
; 24(11): 855-60, 1989 Nov.
Article
en En
| MEDLINE
| ID: mdl-2807800
ABSTRACT
Using cardiac-gated fast acquisition with multiple excitation (FAME), time curves of the cerebral aqueduct signals were derived in 19 healthy volunteers and 14 patients. A mean curve of the normal subjects was determined during systole. A relatively stable point of time was found at 270 msec after the R-wave supposed to be the reversal of the flow of cerebral-spinal fluid in the aqueduct. Different curves were noticed in complete aqueductal obstruction (n = 2); in other pathologic states, such as cerebral tumor (n = 3), normal pressure hydrocephalus (n = 3), and brain atrophy (n = 1), no different signal time curves were observed. Parameters such as aqueduct diameter, cerebro-spinal fluid volume and brain compliance are probably other important factors in aqueduct liquor flow.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Imagen por Resonancia Magnética
/
Acueducto del Mesencéfalo
Límite:
Adolescent
/
Adult
/
Aged
/
Humans
/
Infant
/
Middle aged
Idioma:
En
Revista:
Invest Radiol
Año:
1989
Tipo del documento:
Article
País de afiliación:
Países Bajos