the development of positronic CT technology has for the first
time rendered it possible for mankind to directly and
quantitatively observe the changing of the cerebral cortex
This
of a human being under the visual and audio activity.
method can not only be used to research into the human be-
haviour and thinking process, but also of great value to the
research work on cerebral tumours, epilepsy, paralysis and
migraine. Therefore, this technology, eulogized as "intravital
auto-display" is one of far-reaching significance not only to
medicine, but also to the biotic science as a whole.
At present, by means of the various radioactive drugs,
the visual display technology of nuclear medicine can
almost be applied to all the human organs including the liver,
thyroid gland, kidney, heart, lung, bones, brain, adrenal gland,
stomach, galls, pancreas, spleen, salivary gland, lymph system,
marrow, lachrymal gland, placenta, etc.`
The usual clinical agents for internal-organ display
(also for functional measuring) are I-131, Mo-99-Tc-99m
generator, and the Sn-113-In-113 generator. Among them, the
Mo-99-Tc-99m generator (also called Mo-Tc cow) is especially
recommended for its short radioactive half-life, appropriate
energy and simple operation. Therefore, it is the most widely
applied one, having earned the title of the king of radio-
active medicine. Over 80% of the radioactive drugs belong to
the group of Tc-99m marked compounds.
This group of drugs
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The Translation Division of Tai Dao Publishing Ltd.