MRI physics Flashcards
1
Q
MRI definition
A
magnetic resonance imaging
2
Q
fMRI definition
A
functional magnetic resonance imaging
3
Q
features of MRI
A
high resolution, static image
4
Q
features of fMRI
A
lower resolution, small size area, longer temporal resolution
5
Q
components of MRI machine
A
large magnet, radio frequency coil, gradient coil
6
Q
most common number of teslas in MRI machine
A
3
7
Q
T2
A
horizontal component of proton axes
8
Q
precession
A
movement of protons from 90 to 180 degrees
9
Q
BOLD
A
blood oxygen level dependent
10
Q
time of BOLD signal
A
10-15 sec
11
Q
signal that is used for anatomy
A
MRI
12
Q
fMRI used for …
A
activity
13
Q
family-wise error
A
used bc use of thousands of t-tests can cause error buildup
