Reduced Jet Velocity in Venous Flow after CSF Drainage: Assessing Hemodynamic Causes of Pulsatile Tinnitus [HEAD & NECK]

CONCLUSIONS: Our results show a lumbar puncture–induced reduction in venous peak velocity without a concomitant reduction in flow rate. We hypothesize that the reduction is caused by the expansion of the stenosis after lumbar puncture. Our results further show a correlation between the peak velocity and pulsatile tinnitus intensity, suggesting the flow jet to be instrumental in the development of sound.

http://www.ajnr.org/cgi/content/abstract/40/5/849?rss=1

Source: American Journal of Neuroradiology - May 14, 2019 Category: Radiology Authors: Haraldsson, H., Leach, J. R., Kao, E. I., Wright, A. G., Ammanuel, S. G., Khangura, R. S., Ballweber, M. K., Chin, C. T., Shah, V. N., Meisel, K., Saloner, D. A., Amans, M. R. Tags: HEAD & amp; NECK Source Type: research