MRI ARRT EXAM CO
g g g
MBINED (2) ACTUAL
g g g
QUESTIONS AND CO g g
RRECT ANSWERS A
g g
LREADY GRADED Ag g
+
,To maximize SNR, which parameter can be adjusted
g g g g g g g
a) decrease NSA (NEX) g g
b) increase matrix (FOV)
g g
c) decrease slice thickness
g g
d) increase NSA (NEX)g g
d) increase NSA (NEX)
g g g
A consequence of maximizing resolution using an incr
g g g g g g g
ease image matrix (FOV) is:
g g g g
a) increase SNR g
b) decrease scan time g g
c) increase scan time
g g
d) chemical shift g
c) increase scan time
g g g
,The parameters you can adjust to minimize scan
g g g g g g g
time is: g
decrease TR g
According to Faraday's law, the component of the
g g g g g g g g
magnetization in the g g g
plane ind g
uces a current in RF receiver coils.
g g g g g g
a) longitudinal
b) scan
c) transverse
d) orthogonal
c) transverse
g
What is the unique advantage of phased array coils?
g g g g g g g g
, a) They are several receive coils linked to one
g g g g g g g
receive channel. g
b) They are one large receive coil with several r
g g g g g g g g
eceive channels. g
c) They are several receive coils each with a
g g g g g g g g
different receive channel. g g
d) They provide higher SNR because of their
g g g g g g g
combined receive channel design. g g g
c) They are several receive coils each with a differe
g g g g g g g g g
nt receive channel.
g g
What is the gradient rise time?
g g g g g
a) the time it takes to turn on the gradient once the s
g g g g g g g g g g g
can has been initiated
g g g
b) the time it takes to ramp the gradient to full s
g g g g g g g g g g
trength
c) a measure of the gradient's maximum field s
g g g g g g g
trength capacity g
d) shorter for the echo planar imaging vs. routine i
g g g g g g g g
maging
g g g
MBINED (2) ACTUAL
g g g
QUESTIONS AND CO g g
RRECT ANSWERS A
g g
LREADY GRADED Ag g
+
,To maximize SNR, which parameter can be adjusted
g g g g g g g
a) decrease NSA (NEX) g g
b) increase matrix (FOV)
g g
c) decrease slice thickness
g g
d) increase NSA (NEX)g g
d) increase NSA (NEX)
g g g
A consequence of maximizing resolution using an incr
g g g g g g g
ease image matrix (FOV) is:
g g g g
a) increase SNR g
b) decrease scan time g g
c) increase scan time
g g
d) chemical shift g
c) increase scan time
g g g
,The parameters you can adjust to minimize scan
g g g g g g g
time is: g
decrease TR g
According to Faraday's law, the component of the
g g g g g g g g
magnetization in the g g g
plane ind g
uces a current in RF receiver coils.
g g g g g g
a) longitudinal
b) scan
c) transverse
d) orthogonal
c) transverse
g
What is the unique advantage of phased array coils?
g g g g g g g g
, a) They are several receive coils linked to one
g g g g g g g
receive channel. g
b) They are one large receive coil with several r
g g g g g g g g
eceive channels. g
c) They are several receive coils each with a
g g g g g g g g
different receive channel. g g
d) They provide higher SNR because of their
g g g g g g g
combined receive channel design. g g g
c) They are several receive coils each with a differe
g g g g g g g g g
nt receive channel.
g g
What is the gradient rise time?
g g g g g
a) the time it takes to turn on the gradient once the s
g g g g g g g g g g g
can has been initiated
g g g
b) the time it takes to ramp the gradient to full s
g g g g g g g g g g
trength
c) a measure of the gradient's maximum field s
g g g g g g g
trength capacity g
d) shorter for the echo planar imaging vs. routine i
g g g g g g g g
maging
