CSF Flow in the Aqueduct and skull base as a Function of Heart Rate
Forjaz Secca M, Goulo A, Duarte J, Ferreira J, Vilela P
Univ. Nova de Lisboa, Ressonncia Magntica de Caselas
Most studies that quantify CSF flow do it at the level of the Aqueduct measuring two different quantities: Stroke Volume and Flow Rate. Both these quantities vary with Heart Rate. To further understand the dynamics of CSF flow we obtained measurements of Stroke Volume and Flow Rate at the level of the Aqueduct and at the level of the skull base as a function of heart rate within the same person. In both locations we observed a bigger decrease in the SV than in the FR but for each quantity the variations for the Aqueduct and skull base were similar.