Is the nuclear radiation from CT scan, a magical tool for cancer detection, very harmful? Nuclide: I am innocent...

Is the nuclear radiation from CT scan, a magical tool for cancer detection, very harmful? Nuclide: I am innocent...

The "nuclear" thing has long been widely used in

Medical aspects that are closely related to our health

Just like PET-CT, which is called the "magic tool for cancer detection"

The purpose of using nuclear technology to screen for diseases

This is actually a misunderstanding of nuclear medicine.

Nuclear Medicine

It is a discipline that uses radionuclides

Disciplines with medical applications

Simply put, before CT

The patient is injected with a special imaging agent

It just so happens that cancer cells like to eat this stuff

And let it accumulate in large quantities in your body

When irradiated with a specific instrument

Cancer cells glow when they eat something

Thus exposing the location and size of cancer cells


The dose of radionuclide injected is very small

It is not enough to cause harm to the human body

Moreover, under normal circumstances

We are exposed to radiation every day.

The food we eat, the houses we live in, the mountains, rivers, lakes and seas all have certain radiation.

But short-term, low-dose radiation is not enough to affect health

We are rarely exposed to high doses of radiation that can harm human health in our daily lives.

There is no need to worry that the radiation will stay in the body.

When radionuclides enter the body,

It's already starting to fade.

The physical half-life makes them

Will decay on its own

Generally after 5 to 6 half-lives

That is to say, half a day or at most one day after the injection

It almost disappeared.

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