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Radiation In Medicine |
Radiation In Medicine
Radiation in medicine... This statement is still seems to be
unreal
for some people, though radiation therapy has existed for 100 years.
Well, it is really not so easy for a common person to understand that
radiation may help, if we know that it is one of the reasons of such
horrible disease as cancer. And though there are people who refuse to
do such a procedure, the conventional medicine still recommends this
kind of therapy as one of the most effective for cancer treatment.
There are three divisions of radiation in medicine, such as external
beam radiotherapy (EBRT or XBRT) or teletherapy, brachytherapy
or sealed source radiotherapy and unsealed source radiotherapy. As you
can realize from the names of these types of radiation therapies, they
differ in relation to the position of the radiation source: outside the
body or when the radioactive material is delivered internally.
It should be said that the dose of radiation depends on the state of
health of the patient, the degree of success of the surgery, and
whether the patient is receiving chemotherapy. Moreover, various
countries have various measures of fractions (spreading out over time
the total dose). Thus, in the US and Europe, the fractionation schedule
is 1.8 to 2 Gy per day, five days a
week. In the United Kingdom it is 2.67
to 2.75 Gy per day for adults and 1.5
to 1.7 Gy per day, for children. It should be noted that most part of
the 2500 radiotherapy clinics are in the US.
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