Endovascular Treatments for Brain Aack Introduction - Microsurgery: Advances, Simulations, and Applications - page 63

a)

b)

c)

Figure 2.15 Penumbra system (http://www.penumbrainc.com/). (a) A
specialized catheter is placed in front of the thrombus. (b) A
specialized wire is placed inside while breaking the thrombus.
(c) Suction of the thrombus through the catheter.

b)

a)

CBF

3D-CTA

c) d) e)

CBV MTT TTP

Figure 2.16 Lt. MCA superior trunk occlusion 3D-CT angiography (3D-
CTA), CT perfusion (CTP). (a) 3D-CTA Lt. MCA superior trunk
occlusion is shown with an arrow. (b) Cerebral blood low
(CBF) at the Lt. MCA superior trunk area (arrow) is reduced.
(c) No visible change is seen for cerebral blood volume (CBV) in
the region where the blood low is obstructed. (d) Mean transit
time (MTT) duration is conirmed at the Lt. MCA superior trunk
area (arrow). (e) Time to peak (TTP) duration is conirmed at
the Lt. MCA superior trunk area (arrow). See also Color Insert.