Complex sentence: In the 1970s, the hospital became one of the first in the United Kingdom to acquire a Catscan head scanner, when it did so under Jacobson's guidance, who pioneered the use of advanced neuro-surgical techniques at the hospital.
Split into simpler sentences: In the 1970s the hospital became one of the first in the United Kingdom to acquire a Catscan head scanner. This acquired under the guidence of Jacobson, who pioneered the use of advanced neuro-surgical techniques at the hospital.