Normal flow patterns of intracranial and spinal cerebrospinal fluid defined with phase-contrast cine MR imaging.

Radiology ◽  
1991 ◽  
Vol 178 (2) ◽  
pp. 467-474 ◽  
Author(s):  
D R Enzmann ◽  
N J Pelc
2000 ◽  
Vol 93 (2) ◽  
pp. 237-244 ◽  
Author(s):  
Henry W. S. Schroeder ◽  
Christiane Schweim ◽  
Klaus H. Schweim ◽  
Michael R. Gaab

Object. The purpose of this prospective study was to evaluate aqueductal cerebrospinal fluid (CSF) flow after endoscopic aqueductoplasty. In all patients, preoperative magnetic resonance (MR) imaging revealed hydrocephalus caused by aqueductal stenosis and lack of aqueductal CSF flow.Methods. In 14 healthy volunteers and in eight patients with aqueductal stenosis who had undergone endoscopic aqueductoplasty, aqueductal CSF flow was investigated using cine cardiac-gated phase-contrast MR imaging. For qualitative evaluation of CSF flow, the authors used an in-plane phase-contrast sequence in the midsagittal plane. The MR images were displayed in a closed-loop cine format. Quantitative through-plane measurements were performed in the axial plane perpendicular to the aqueduct. Evaluation revealed no significant difference in aqueductal CSF flow between healthy volunteers and patients with regard to temporal parameters, CSF peak and mean velocities, mean flow, and stroke volume. All restored aqueducts have remained patent 7 to 31 months after surgery.Conclusions. Aqueductal CSF flow after endoscopic aqueductoplasty is similar to aqueductal CSF flow in healthy volunteers. The data indicate that endoscopic aqueductoplasty seems to restore physiological aqueductal CSF flow.


1994 ◽  
Vol 35 (2) ◽  
pp. 123-130 ◽  
Author(s):  
F. Barkhof ◽  
M. Kouwenhoven ◽  
P. Scheltens ◽  
M. Sprenger ◽  
P. Algra ◽  
...  

Cine phase-contrast MR imaging was used to study pulsatile CSF flow in the aqueduct in 11 young controls (mean age 30 years) and 9 old controls (mean age 69 years). A high-resolution gradient echo technique and an oblique imaging plane, perpendicular to the aqueduct, was used to avoid volume averaging. Phantom studies confirmed that the technique was accurate. Aqueductal velocity and flux in old controls was higher than in young controls, but the differences were not significant. For all controls together, the averaged peak velocity was 4.2 ± 1.5 cm/s in rostral and −7.8 ± 4.9 cm/s in caudal direction; for the flux it was 0.16 ± 0.10 cm3/s in rostral and −0.29 ± 0.19 cm3/s in caudal direction. Phase-contrast measurements were significantly related to flow-void on modulus MR images, but not with ventricular size or cortical atrophy. The present technique avoids underestimation of aqueductal flow, and therefore reveals higher aqueductal velocity and flux values than previous studies. Factors other than age or atrophy seem to determine aqueductal CSF flow.


1994 ◽  
Vol 35 (2) ◽  
pp. 123-130 ◽  
Author(s):  
Frederik Barkhof ◽  
M. Kouwenhoven ◽  
P. Scheltens ◽  
M. Sprenger ◽  
P. Algra ◽  
...  
Keyword(s):  
Csf Flow ◽  

1999 ◽  
Vol 15 (9) ◽  
pp. 461-467 ◽  
Author(s):  
D.-S. Kim ◽  
Joong-Uhn Choi ◽  
Ryoong Huh ◽  
Pyeung-Ho Yun ◽  
Dong-Ik Kim

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