MRI Flashcards
1
Q
What does MRI stand for?
A
Magnetic Resonance Imaging
2
Q
advantages of MRI
A
Non invasive
Superior clarity of images
define composition of a lesion
3
Q
How does an MRI work?
A
uses the magnetic characteristics of hydrogen atoms which are contained in water molecules in the patients body
4
Q
What happens to the patient when they have an MRI
A
the patient is subjected to radiowaves which disorientates the bodys protons so that they emit tiny radio signals - these radio signals are detected and converted to an image by a computer
5
Q
what magnetic field dangers does an MRI have?
A
- attain if the pt has any metal surgical implants as they may move or dislodge
6
Q
what contrast media can be used with MRI
A
Gadolinium to enhance and show damage to the blood brain barrier, vascularity of lesions
7
Q
disadvantages of an MRI
A
- rare in nz
- expensive
