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4
THERAPEUTIC APPLICATION OF AADIATION
Anérew Hi, Dowdy, be Do
Frovessor of Rediolos
School of beGieins
Universit
(Abstract of lecture before University xt en i on course at U.C.L.A. in
"The Application of Nuclear Fhysics to the Bi olerical and Medical Sciences",.
The selection of radiation for therapeutic use depends upon:
{2)
the availebility of material (rediation)
(2)
the experience and exvertness
of the Individusl sdministering the
P
radiation
(3)
the type and character of the diseese to te treated.
In general, the biolcgical results from @!frerent kinds of radiation
ere the acme if certein differences in physical cheracteristies are taken
Anve coriidgesction.
(Te illustrate:
one would
herdly use a snotgun to
eanooy 2 Slr off a wall when a fly swatter weulec do,
Hy the same token,
eines petlicelotine effectively denonstretes a relectivity for thyroid,
le no need to treat cancer of the thyroid by total body raéietion,
ive
icdire is appliceble as a
sexceunterse of thyroid cancers.)
valiie it is net generally recognized, particularily among the laity,
ratviction therapy is used for other then malienincics.
The radiation
t reatwent cf lLemphoid hyperplesia in the posterior nesopherynx, a condi-#
tion which may cause much of the ceafness amcng children, is a case in
oint.
tue overgrewth of lymphoié tissues wiich blocks the opening of the
*
eustachian tube an&@ impairs hsering can be Cestroyed
merit owite minute quantities of beta radisticn,
by localized treate
In approximstely 80% of
the cases so treated, one trestment proved erfectisc.s—
Tt Is ths opinion of this lecturer that radisticn itself is not the
enswer to
the cancer problem, nor will the grestest advantace of racio-