eur ys m , ▁a ▁less - in vas ive ▁procedure ▁than ▁traditional ▁methods . ▁ ▁He ▁is ▁the ▁Found ing ▁Chair man ▁of ▁the ▁Department ▁of ▁Ne uro log ical ▁S urg ery ▁at ▁Saint ▁Louis ▁University ▁School ▁of ▁Medicine ▁and ▁Director ▁of ▁the ▁Center ▁for ▁C ere bro vas cular ▁and ▁Sk ull ▁Base ▁S urg ery ▁at ▁Saint ▁Louis ▁University ▁Hospital ▁in ▁Saint ▁Louis , ▁Missouri . ▁ ▁He ▁has ▁served ▁as ▁a ▁visit ing ▁professor ▁to ▁over ▁ 1 0 0 ▁univers ities ▁around ▁the ▁glo be . ▁He ▁has ▁author ed ▁the ▁main ▁reference ▁text book ▁for ▁brain ▁by pass ▁surg ery ▁titled ▁C ere br al ▁Re vas cular ization ▁in ▁which ▁Abd ul ra uf ▁details ▁extra - c ran ial ▁to ▁int rac ran ial ▁by pass ▁surg ery . ▁▁ ▁He ▁special izes ▁on ▁" A w ake " ▁surg ery ▁for ▁Bra in ▁A neur ys ms , ▁Ar ter io - ven ous - Mal form ations ▁( AV M s ), ▁and ▁EC - IC ▁B yp ass . ▁ ▁Abd ul ra uf ▁has ▁served ▁on ▁the ▁bo ards ▁of ▁multiple ▁neu ros urg ical ▁soci eties , ▁including ▁the ▁Congress ▁of ▁Ne uro log ical ▁Sur ge ons ▁( C NS ) ▁and ▁the ▁World ▁Federation ▁of ▁Sk ull ▁Base ▁Soci eties ▁( WF SB S ). ▁ ▁Biography ▁Abd ul ra uf ▁attended ▁a ▁high ▁school ▁in ▁Kansas ▁City , ▁Missouri , ▁and ▁received ▁his ▁b ach elor