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1. what is meant by X-ray attenuation
- the differences of energy incidence on receptors caused by a homogenous X-ray on a patient
- the range of energy levels of x rays allowing them to demonstrate a range of densities
- the range of absorbtion levels of materials as x rays travel through
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2. what is shown in nuclear medicine/ radionuclide imaging
- function and physiology of tissues
- coronal image of soft tissue - can have colour overlay
- real time moving images of bony structures and contrast soft tissue
- multiplanar images with good soft tissue display
- cross sectional images of bone and soft tissue
- bones and joints and some soft tissue
3. what are the dangers of plain film radiography
- walking into room with electronics can be dangerous
- radiation - protection needed
- iodine contrast can cause allergic reaction (anaphylaxis) and has interactions with some drugs
4. nuclear medicine or radionuclide imaging uses:
- magnetic and sound waves
- X-rays upto 150kup
- ionising radiation between 55-150kup
- ionising radiation upto 150kup
- ionising radiation as gamma rays
- non-ionising radiation (high frequency sound waves)
5. magnetic resonance imaging uses:
- ionising radiation as gamma rays
- magnetic and sound waves
- ionising radiation upto 150kup
- X-rays upto 150kup
- non-ionising radiation (high frequency sound waves)
- ionising radiation between 55-150kup
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