The MRI Exam & Anatomy Part 1
Questions and Answers Latest Update
100% Pass
What is the primary function of gadolinium-based contrast agents in MRI?
A. To enhance image resolution
B. ✔✔ To improve tissue contrast
C. To increase scan speed
D. To reduce patient motion artifacts
Which type of tissue appears darkest on a T1-weighted MRI scan?
A. ✔✔ Cerebrospinal fluid (CSF)
B. Muscle
C. Fat
D. Gray matter
What is the role of the RF (radiofrequency) pulse in MRI?
A. To create a magnetic field
B. ✔✔ To excite hydrogen protons
1
,C. To shield the scanner from interference
D. To accelerate image processing
Which of the following parameters primarily affects image contrast in T2-weighted imaging?
A. TR (Repetition Time)
B. ✔✔ TE (Echo Time)
C. Slice thickness
D. Bandwidth
Why is it important to perform MRI safety screening before a scan?
A. To verify insurance coverage
B. ✔✔ To check for contraindications such as metal implants
C. To confirm the patient's identity
D. To reduce scan time
Which factor determines the spatial resolution of an MRI image?
A. ✔✔ Matrix size and field of view
B. Type of contrast agent used
2
,C. Strength of the RF pulse
D. The color settings on the display
What is the purpose of using fat suppression techniques in MRI?
A. ✔✔ To reduce fat signal and improve contrast between tissues
B. To shorten scan duration
C. To increase T1 relaxation time
D. To minimize the need for contrast agents
Which MRI sequence is most useful for detecting brain edema?
A. T1-weighted imaging
B. ✔✔ T2-weighted imaging
C. Gradient echo
D. Short-TI Inversion Recovery (STIR)
Why is hydrogen the primary element used in MRI?
A. It is the most abundant element in the universe
B. ✔✔ It has a strong magnetic moment due to its single proton
3
, C. It interacts best with radio waves
D. It is the heaviest element in the body
What is the function of the gradient coils in an MRI scanner?
A. To generate the main magnetic field
B. To cool the superconducting magnet
C. To control the RF pulse
D. ✔✔ To spatially encode the MRI signal
1. When perfoming an MRI exam for possible multiple sclerosis, what type of sequence is run
specifically to identify the number and location of white matter lesions?
a. diffusion-weighted imaging
b. FLAIR
c. STIR
d. spectroscopy
b. FLAIR
4
Questions and Answers Latest Update
100% Pass
What is the primary function of gadolinium-based contrast agents in MRI?
A. To enhance image resolution
B. ✔✔ To improve tissue contrast
C. To increase scan speed
D. To reduce patient motion artifacts
Which type of tissue appears darkest on a T1-weighted MRI scan?
A. ✔✔ Cerebrospinal fluid (CSF)
B. Muscle
C. Fat
D. Gray matter
What is the role of the RF (radiofrequency) pulse in MRI?
A. To create a magnetic field
B. ✔✔ To excite hydrogen protons
1
,C. To shield the scanner from interference
D. To accelerate image processing
Which of the following parameters primarily affects image contrast in T2-weighted imaging?
A. TR (Repetition Time)
B. ✔✔ TE (Echo Time)
C. Slice thickness
D. Bandwidth
Why is it important to perform MRI safety screening before a scan?
A. To verify insurance coverage
B. ✔✔ To check for contraindications such as metal implants
C. To confirm the patient's identity
D. To reduce scan time
Which factor determines the spatial resolution of an MRI image?
A. ✔✔ Matrix size and field of view
B. Type of contrast agent used
2
,C. Strength of the RF pulse
D. The color settings on the display
What is the purpose of using fat suppression techniques in MRI?
A. ✔✔ To reduce fat signal and improve contrast between tissues
B. To shorten scan duration
C. To increase T1 relaxation time
D. To minimize the need for contrast agents
Which MRI sequence is most useful for detecting brain edema?
A. T1-weighted imaging
B. ✔✔ T2-weighted imaging
C. Gradient echo
D. Short-TI Inversion Recovery (STIR)
Why is hydrogen the primary element used in MRI?
A. It is the most abundant element in the universe
B. ✔✔ It has a strong magnetic moment due to its single proton
3
, C. It interacts best with radio waves
D. It is the heaviest element in the body
What is the function of the gradient coils in an MRI scanner?
A. To generate the main magnetic field
B. To cool the superconducting magnet
C. To control the RF pulse
D. ✔✔ To spatially encode the MRI signal
1. When perfoming an MRI exam for possible multiple sclerosis, what type of sequence is run
specifically to identify the number and location of white matter lesions?
a. diffusion-weighted imaging
b. FLAIR
c. STIR
d. spectroscopy
b. FLAIR
4
