Medical Physics and Ultrasound (Further Additional)
- Created by: Ellsbells98
- Created on: 13-04-15 21:02
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- Medical Physics and Ultrasound
- X-rays are used for medical imaging
- X-rays are high energy EM waves - get absorbed by dense material like bone and metal.
- Their properties are used to take x-ray photos - diagnose bone fractures.
- They are a type of ionising radiation - there is a health risk to people who are exposed to them.
- Their properties are used to take x-ray photos - diagnose bone fractures.
- X-rays are high energy EM waves - get absorbed by dense material like bone and metal.
- CAT scans use x-rays
- X-rays are used to produce a two-dimensional slice through the body.
- CAT scans use intense beams of x-rays that are strongly ionising. - they can be used to image soft tissue as well as bones.
- X-rays are used to produce a two-dimensional slice through the body.
- Endoscopes use optical fibres to see inside the body.
- Visible light is a type of non-ionising radiation.
- Endoscopes reflect light along optical fibres.
- They investigate problems without the need for invasive surgery - used for keyhole surgery.
- Endoscopes reflect light along optical fibres.
- Visible light is a type of non-ionising radiation.
- Ultrasound is sound with a higher frequency (above 20kHz).
- Ultrasound is a non-ionising method of medical imaging. (It's much safer for the patient)
- It can be used to break down kidney stones (hard masses that block the urinary tract).
- An ultrasound beam concentrates high energy waves at them so they turn into sand-like particles. Then they pass out of the body in the urine. - good because its relatively painless and you don't need surgery.
- Pre-natal scanning of a foetus.
- It can be used to diagnose soft tissue problems and perform pre-natal scans of a foetus in the womb.
- Ultrasound waves are reflected off the different tissue boundaries and the times and distributions of the echoes are processed by a computer to form an image on a screen.
- It can be used to diagnose soft tissue problems and perform pre-natal scans of a foetus in the womb.
- Measuring the speed of blood flow.
- Ultrasound works in real time - it can show things changing and moving.
- Useful for investigating problems with blood flow - particularly in the heart and the liver,
- Special ultrasound machines can measure the speed of blood flow and identify and blockages in the veins and arteries.
- Useful for investigating problems with blood flow - particularly in the heart and the liver,
- Ultrasound works in real time - it can show things changing and moving.
- It can be used to break down kidney stones (hard masses that block the urinary tract).
- Ultrasound is a non-ionising method of medical imaging. (It's much safer for the patient)
- X-rays are used for medical imaging
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