The Effect of 3.0-tesla Magnetic Resonance Imaging on Various Pressure-programmable Shunt Valves
Takashi Inoue, Yasutaku Kuzu, Kuniaki Ogasawara
Pressure-programmable shunt valves permit non-invasive readjustment of the opening pressure in an implanted shunt to respond to changes in cerebrospinal fluid hydrodynamics.1,5,8,10 Such valves are advantageous in patients with normal-pressure hydrocephalus,1,7–9 arachnoid cyst,9 complications caused by over-drainage of cerebrospinal fluid,5,9 and slit-ventricle syndrome;4,5 however, the magnetically adjustable valve setting may need readjustment after exposure to […]