DR.TSUBOKURA'S RADIATION LECTURE VOL.161

Author: Masaharu Tsubokura M.D., PhD.

Editor: Yudai Kaneda

321　 Remote Control of Radiation

April 3, 2021

Treating cancer by inserting radioactive substances into the body, such as by taking capsules containing radioactive substances or administering them into the bloodstream, is called internal therapy.

On the other hand, brachytherapy is a treatment method in which a small, encapsulated radioactive substance is inserted directly into the cancer cells or their surrounding area from outside the body to expose the cancer cells to radiation.

There are two methods to insert directly the encapsulated radioactive substances into the body. One is to encapsulate