Contrast agents are used in CT and MRI imaging however, contrast agents are:
a. directly imaged in MRI and indirectly in CT
b. indirectly imaged in MRI and also in CT
c. indirectly imaged in MRI and directly imaged in CT
d. directly imaged in MRI and in CT imaging Correct Answer c. indirectly ...
MRI TECH MCQ Questions with 100%
Correct Answers
Contrast agents are used in CT and MRI imaging however, contrast agents are:
a. directly imaged in MRI and indirectly in CT
b. indirectly imaged in MRI and also in CT
c. indirectly imaged in MRI and directly imaged in CT
d. directly imaged in MRI and in CT imaging Correct Answer c. indirectly imaged in MRI
and directly imaged in CT
Q2. MRI has the remarkable ability to quantify flow velocities spanning between
a. 10 micro-meter to 50 mm
b. 10 micro-meter to 100 mm
c. 10 micro-meter to 1000 mm
d. 10 micro-meter to 10000 mm
e. 10 nano-meter to 100000 mm Correct Answer d. 10 micro-meter to 10000 mm
Q3. One of these factors Does NOT affect the signal size in MRI imaging;
a. The voxel size
b. The strength of the external magnetic field
c. The strength of the gradient magnetic field
d. The sensitivity of the RF receiver
e. TR and TE values Correct Answer c. The strength of the gradient magnetic field
Q4. The amount of noise in the MRI image is ............ the bandwidth of the RF detection
electronics;
a. Inversely proportional to
b. Inversely proportional to the square of
c. Directly proportional to the square-root of
d. Directly proportional to
e. Not related to Correct Answer d. Directly proportional to
Q5. Local variations in the external magnetic fields of an MRI will cause mislocalisation
and of signals along
a. PEG
b. FEG
c. Both FEG & PEG
d. SSG
e. PEG & SSG Correct Answer b. FEG
Q6. . If the sampling interval along the FEG direction is doubled and gradient strength
Gx is also doubled, then the k-space interval (∆kx) will be
a. Unchanged
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