Steerable Needle May Offer More Access To Clots Now Viewed As Too Dangerous For Operation

Steerable Needle Lets Neurosurgeons Remove Brain Clots by Brett Smith.  RedOrbit.com.  August 9, 2013.

(1)  Why are current operational procedures for intracerebral hemorrhages not popular among neurosurgeons?

(2)  They system developed by the team at Vanderbilt shows ________ success in study simulations.