Imaging in inflammatory disorders and infections Flashcards Preview

Medicine Term One > Imaging in inflammatory disorders and infections > Flashcards

Flashcards in Imaging in inflammatory disorders and infections Deck (10)
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1
Q
What is the properties of the ideal isotope
A
Similar half life to length of procedure
Gamma emitter
Easily bound to pharmaceutical component
Energy of gamma rays should be 50-300 keV
2
Q
What happens in a tomography gamma camera
A
Nuclear energy, gamma rays being emitted from patient is picked up and image crystal produces flash of light and electrical energy converts it into a picture
3
Q
What does image quality depend on in a tomography gamma cameras
A
Radiation dose
Metal objects
Proximity to camera

4
Q
Define scintagraphy
A
radioactive tracer used to obtain image of body organs / functions
5
Q
What is a common radionuclide
A
99mTc
6
Q
What is SPECT
A
Single-photon emission computed tomography is a nuclear medicine tomographic imaging technique using gamma rays
7
Q
What is PET
A
Molecular imaging as inject/inhale radioactive drug tracer to show activity of organs/ tissues
8
Q
example of radioactive tracer in PET scan
A
18F-fluorodeoxy glucose
9
Q
Main risk of ionising radiation
A
Induce cancer
10
Q
Define CT
A
X-rays produce a digital image of a slice of tissue, usually in an axial plane using computing to create the image

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