ARRT review - MRI registry review
program Exam Questions & Answers
(Grade A+)
An RF pulse of what flip angle will maximize the component of the
net magnetization projected into the transverse plane?
a. 180
b. 120
c. 90
d. 45 -
correct answer ✅c.
T1 relaxation refers to ____ relaxation.
a. spin-spin
b. longitudinal
c. phase
d. transverse -
correct answer ✅b.
Which of the following statements is false?
,ARRT review - MRI registry review
program Exam Questions & Answers
(Grade A+)
a. T1 relaxation refers to longitudinal recovery of magnetization
while T2 relaxation refers to the transverse decay of magnetization
b. T1 relaxation and T2 relaxation occur simultaneously
c. echoes collected in the transverse plane demonstrate only T2
relaxation differences
d. T2 relaxation occurs much more quickly than T1 relaxation -
correct answer ✅c.
If the precessional frequency of the patient's protons is
approximately 21 MHz, what magnetic field strength is being
experienced by the patients protons? -
correct answer ✅Larmor frequency equation
W0= B0 x Y
21= 42.6 x (X)
21/42.6 = .4929 (round) = 0.5T
Which of the following is the definition of T1 relaxation?
,ARRT review - MRI registry review
program Exam Questions & Answers
(Grade A+)
a. the time is takes the net longitudinal magnetization of protons to
grow 63% of its final amplitude
b. the time at which is takes the transverse magnetization has
decayed 63% of its full value -
correct answer ✅a.
Based on the graph of longitudinal relaxation shown above, which
of the following would have the brightest signal intensity on T1
image?
a. bone marrow
b. intervertebral disk
c. CSF
d. muscle
(post test 1; page 1) -
correct answer ✅a.
, ARRT review - MRI registry review
program Exam Questions & Answers
(Grade A+)
Based on the graph of longitudinal relaxation shown above, which
of the following would have the shortest T1 relaxation time?
a. bone marrow
b. intervertebral disk
c. CSF
d. muscle
(post test 1; page 1) -
correct answer ✅a.
The edema associated with pathology in the brain has a much
longer T2 relaxation time than surrounding normal brain tissue. On
a T2 image, what does this result in?
a. isointense between edema and surrounding normal brain tissue
b. a low signal intensity in the area of edema
c. a signal void in the area of edema
d. a high signal intensity in the area of edema -
correct answer ✅d.
program Exam Questions & Answers
(Grade A+)
An RF pulse of what flip angle will maximize the component of the
net magnetization projected into the transverse plane?
a. 180
b. 120
c. 90
d. 45 -
correct answer ✅c.
T1 relaxation refers to ____ relaxation.
a. spin-spin
b. longitudinal
c. phase
d. transverse -
correct answer ✅b.
Which of the following statements is false?
,ARRT review - MRI registry review
program Exam Questions & Answers
(Grade A+)
a. T1 relaxation refers to longitudinal recovery of magnetization
while T2 relaxation refers to the transverse decay of magnetization
b. T1 relaxation and T2 relaxation occur simultaneously
c. echoes collected in the transverse plane demonstrate only T2
relaxation differences
d. T2 relaxation occurs much more quickly than T1 relaxation -
correct answer ✅c.
If the precessional frequency of the patient's protons is
approximately 21 MHz, what magnetic field strength is being
experienced by the patients protons? -
correct answer ✅Larmor frequency equation
W0= B0 x Y
21= 42.6 x (X)
21/42.6 = .4929 (round) = 0.5T
Which of the following is the definition of T1 relaxation?
,ARRT review - MRI registry review
program Exam Questions & Answers
(Grade A+)
a. the time is takes the net longitudinal magnetization of protons to
grow 63% of its final amplitude
b. the time at which is takes the transverse magnetization has
decayed 63% of its full value -
correct answer ✅a.
Based on the graph of longitudinal relaxation shown above, which
of the following would have the brightest signal intensity on T1
image?
a. bone marrow
b. intervertebral disk
c. CSF
d. muscle
(post test 1; page 1) -
correct answer ✅a.
, ARRT review - MRI registry review
program Exam Questions & Answers
(Grade A+)
Based on the graph of longitudinal relaxation shown above, which
of the following would have the shortest T1 relaxation time?
a. bone marrow
b. intervertebral disk
c. CSF
d. muscle
(post test 1; page 1) -
correct answer ✅a.
The edema associated with pathology in the brain has a much
longer T2 relaxation time than surrounding normal brain tissue. On
a T2 image, what does this result in?
a. isointense between edema and surrounding normal brain tissue
b. a low signal intensity in the area of edema
c. a signal void in the area of edema
d. a high signal intensity in the area of edema -
correct answer ✅d.
