in 10 chronically prepared and anesthetized dogs , incremental inflation ( 0.07 ml/s ) of an extradural balloon caused 1 ) a progressive fall in the brain nonlinear elastic parameter ( g0 , mmhg/mm2 ) , 2 ) nonsignificant changes in brain tissue elasticity ( g0 , mmhg/mm ) , 3 ) a disproportionate progressive rise in subpial tension , and 4 ) a progressive fall in local cerebral blood flow ( h2 clearance ) , despite a modest decrease in cerebral perfusion pressure ( extracranial ) .
C0006104
brain
C0233494
tension