Physics - Medical physics

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What are X-rays?
X-rays are high frequenecy EM waves that gets absorbed into dense materials.
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What are X-rays used for?
They are used for X-ray photographs that can be used to diagnose things like bone fractures.
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Why is there a health risk when using X-rays?
Because they give of ionising radiation.
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What does CAT stand for in terms of CAT scans?
Computerised axial tomography
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What type of EM wave do CAT scans use?
They use X-rays
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What do CAT scans do?
CAT scans produce an image of a two- dimensional slice through the body, they use intense beams of X-rays, that are strongly ionising.
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What can CAT scans do that X-rays cant?
They can be used to image soft tissue as well as bone.
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What EM wave do Endoscopes use?
Visable light.
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How do Endoscopes reflect visable light to create an image?
Through the use of optical fibres.
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What are ultrasounds?
Ultrasounds are a non-ionising method of medical imaging.
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What are Ultrasounds used for?
They are used for breaking down kidney stones in the urinary tract, they are also used for measuring the speed of blood flow and doing pre-natal scannings of a fetus.
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Other cards in this set

Card 2

Front

What are X-rays used for?

Back

They are used for X-ray photographs that can be used to diagnose things like bone fractures.

Card 3

Front

Why is there a health risk when using X-rays?

Back

Preview of the front of card 3

Card 4

Front

What does CAT stand for in terms of CAT scans?

Back

Preview of the front of card 4

Card 5

Front

What type of EM wave do CAT scans use?

Back

Preview of the front of card 5
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