Endovascular Treatments for Brain Aack Introduction - Microsurgery: Advances, Simulations, and Applications - page 52

and the yellow to a balloon catheter. From those catheters, the
micro-catheter (arrow head) is used for leading the system to the
target location.
Figure 2.4 Aneurysm embolization system: guiding catheter (white
arrow), micro-guide wire (black arrow head) for leading a
micro-catheter (black arrow), micro-guide wire (yellow arrow
head) for leading balloon catheter (yellow arrow).
The most basic treatment method for embolization using coils is
to place a micro-catheter inside the aneurysm and deliver through
it the coil for illing the aneurysm (Figs. 2.5 and 2.6). However,
such treatment was less successful for wide-neck and large-size
aneurysms [23]. The most conventional treatment for wide-neck
aneurysms is the balloon-assisted technique (Figs. 2.7 and 2.8). For
some cases it is dificult to use this technique; those treatments are
completed assisting the coil deployment with a stent (stent assist
coil) (Fig. 2.9a,b [by Johnson and Johnson]). In recent years aneurysm
treatment using tight stent mesh became possible, such as pipeline
and silk-stent (http://www.balt.fr/) (Fig.2.9c). That way, minimally
invasive treatment results and adaptability have improved by the
development of many instruments.