Measurement of CSF flow using an interferrographic MR technique based on the rare-fast imaging sequence.
A fast MR sequence based on the RARE-myelographic technique allows the determination of cerebrospinal fluid (CSF) flow with a flow sensitivity below 1 mm/sec. The method averages flow over the ECG cycle and consequently measures net flow rather than ECG-dependent flow variations. The noninvasivity of this technique and the very short acquisition time of about 5 sec make this sequence a very useful diagnostic tool for a variety of CSF-flow dependent disorders like the determination of different types of hydrocephalus, the control of shunt operations and the assessment of communication pathways between CSF and cysts.
Hennig
J
J
Department of Radiology, University Freiburg, FRG.
Ott
D
D
Adam
T
T
Friedburg
H
H
D016080:Arachnoid Cysts / Q000134:cerebrospinal fluid; D001921:Brain / Q000502:physiology; D002555:Cerebrospinal Fluid / Q000502:physiology*; D002557:Cerebrospinal Fluid Shunts; D005583:Fourier Analysis; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008433:Mathematics; D008954:Models, Biological; D008961:Models, Structural; D008962:Models, Theoretical; D012212:Rheology; D013346:Subarachnoid Space; D013997:Time Factors