Now showing items 2-5 of 5

    • Influence of general anaesthesia on slow waves of intracranial pressure 

      Lalou, Despina Aphrodite; Czosnyka, Marek; Donnelly, Joseph; Lavinio, Andrea; Pickard, John D.; Garnett, Matthew; Czosnyka, Zofia (Taylor & Francis, 2016-06-09)
      Objective. Slow vasogenic intracranial pressure (ICP) waves are spontaneous ICP oscillations with a low frequency bandwidth of 0.3-4 cycles/min (B-waves). B-waves reflect dynamic oscillations in cerebral blood volume ...
    • Investigation of the hydrodynamic properties of a new MRI-resistant programmable hydrocephalus shunt 

      Allin, David M.; Czosnyka, Marek; Richards, Hugh K.; Pickard, John D.; Czosnyka, Zofia (2008-04-21)
      Abstract Background The Polaris valve is a newly released hydrocephalus shunt that is designed to drain cerebrospinal fluid (CSF) from the brain ventricles or lumbar CSF space. The aim of this study was to bench test the ...
    • Laboratory study on intracranial hypotension created by pumping the chamber of a hydrocephalus shunt 

      Bromby, Adam; Czosnyka, Zofia; Allin, David M.; Richards, Hugh K.; Pickard, John D.; Czosnyka, Marek (2007-03-26)
      Abstract Background It has been reported that pumping a shunt in situ may precipitate a proximal occlusion, and/or lead to ventricular over-drainage, particularly in the context of small ventricles. In the laboratory we ...
    • Porohyperelastic anatomical models for hydrocephalus and idiopathic intracranial hypertension 

      Kim, Hakseung; Min, Byoung-Kyong; Park, Dae-Hyeon; Hawi, Stanley; Kim, Byung-Jo; Czosnyka, Zofia; Czosnyka, Marek et al. (American Association of Neurological Surgeons, 2015-02-06)
      OBJECT Brain deformation can be seen in hydrocephalus and idiopathic intracranial hypertension (IIH) via medical images. The phenomenology of local effects, brain shift, and raised intracranial pressure and herniation are ...