Invasive and Ultrasound Based Monitoring of the Intracranial Pressure in an Experimental Model of Epidural Hematoma Progressing towards Brain Tamponade on Rabbits

<table>(Left panel) Normal pupillary size at relaxation (top) and following a consensual PLR (bottom) on B-mode. (Right panel) Normal pupil constriction velocity which is calculated by the slope of the M-mode (<svg height="11.375" id="M13" style="vertical-align:-0.20064pt" version="1.1" viewbox="0 0 12.7375 11.375" width="12.7375" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.112)"><path d="M730 650l-8 -28q-52 -4 -72 -18t-64 -77q-79 -113 -321 -539h-33l-119 541q-13 59 -29.5 73t-66.5 20l7 28h245l-8 -28l-28 -5q-33 -6 -40.5 -15.5t-0.5 -38.5l102 -450h2q191 320 246 430q21 42 15.5 56t-43.5 19l-31 4l7 28h240z" id="x1D449"></path></g>
</svg> = 0.09 cm/s in this example) as the latter can be easily placed on the pupil’s center when performing a consensual PLR (volume of autologous blood infusion = 0.1 mL, ICP = 8 mm Hg).</table>

The Scientific World Journal

fig5

Figure 5

Figure 5: Invasive and Ultrasound Based Monitoring of the Intracranial Pressure in an Experimental Model of Epidural Hematoma Progressing towards Brain Tamponade on Rabbits 

Figure 5 | Invasive and Ultrasound Based Monitoring of the Intracranial Pressure in an Experimental Model of Epidural Hematoma Progressing towards Brain Tamponade on Rabbits 