Font size
WorksheetsMRI Knowledge Quiz
Total questions: 70
Worksheet time: 38mins
What is the primary indication for MRI of the kidneys?
Evaluation of liver lesions
Evaluation of solid abdominal masses and cysts
Assessment of adrenal glands
Imaging of the pancreas
Which patient preparation is crucial for MRI abdomen to minimize artifacts?
Fasting for 6 hours
Removal of all metal objects
Administration of contrast agent
Sedation for claustrophobic patients
What is the purpose of the breath-hold (BH) technique in MRI abdomen?
To minimize respiratory artifacts
To enhance contrast uptake
To increase spatial resolution
To reduce scan time
Which sequence is commonly used for MRA renal arteries?
T2 HASTE
T1 VIBE Dixon
T1 FLASH-3D FAT SAT
T2fs HASTE
What is the optimal time to perform a breast MRI for pre-menopausal women?
During menstruation
1-2 weeks after the start of the menstrual cycle
1-2 weeks before the start of the menstrual cycle
No specific time required
What is the primary reason for using a prone position in breast MRI?
To minimize motion artifacts
To enhance contrast uptake
To increase spatial resolution
To reduce scan time
Which artifact is commonly encountered in breast MRI due to improper positioning?
Chemical shift artifact
Motion artifact
Positioning artifact
Dielectric artifact
What is the significance of a Type 3 kinetic curve in breast MRI?
High probability of being benign
Intermediate probability of malignancy
High probability of being malignant
No significant meaning
Why is it important to empty the bladder and bowel before an MRI of the pelvis?
To make the patient more comfortable.
To reduce blurring caused by movement artifacts.
To speed up the scan time.
To help the scanner find the right area.
What is the main purpose of using a saturation band during a pelvic MRI scan?
To make the images brighter.
To reduce unwanted interference (artifacts) from blood vessels and bowel movement.
To focus the magnetic field.
To protect the patient from noise.
When planning a scan for a suspected perianal fistula, which structure's alignment is most critical for correctly imaging the fistula tract?
The patient's shoulder.
The anal canal.
The kidneys.
The hip joints.
A patient needs an MRI to look at their prostate gland. What is a key patient consideration mentioned to help get clear images?
Wearing metal jewelry.
Lying on their side.
Taking medication to reduce bowel movement.
Talking during the scan.
In the context of female pelvic MRI, what is a primary reason for using T2-weighted sequences?
To see calcium deposits clearly.
To see how much blood is flowing to an organ.
To get detailed pictures of soft tissues like the uterus and ovaries.
To remove fat signal from the image.
Which imaging sequence is often used in dynamic contrast-enhanced MRI of the female pelvis to monitor tissue enhancement over time?
T2 STIR
DWI (Diffusion Weighted Imaging)
T1 VIBE
Axial T2
In MRI Chest protocols, where is the saturation band typically placed on the axial plane, and why is the phase direction often set from right to left?
On the chest/lungs to minimize respiration artifacts; phase direction right to left to avoid motion from the chest & heart
On the spine to minimize susceptibility artifacts; phase direction right to left to avoid motion from the liver
On the shoulders to minimize motion from arm movement; phase direction right to left to avoid motion from the palmar muscles
On the diaphragm to minimize respiratory motion; phase direction right to left to avoid motion from the intestines.
For MRI Breast with silicone implants, which technique (specifically mentioned in the context for Siemens scanners) is used to suppress water signal, allowing fat to remain bright and silicone to be visualized?
Fat-Saturation
Water Saturation
STIR
T1-Weighted imaging
When planning the Sagittal plane for MRI Sternum, the block must be parallel to the body of the sternum in the coronal plane and perpendicular to the sternum's body in the axial plane. What does this perpendicularity in the axial plane primarily align with?
The clavicle
The costal cartilages
The vertebral bodies
The xiphoid process
In CMR ECG electrode placement (Philips example), why is the fourth (black) electrode positioned to the left of the top electrode near the axilla?
To improve signal-to-noise ratio (SNR) for the apex.
To better capture the electrical activity of the right ventricle.
To act as a ground electrode.
To monitor the left atrium specifically.
When planning the Horizontal Long Axis (HLA) view in CMR, it must pass through the apex, the centre of the mitral valve, and what other specific structure defined in the context?
The aortic valve
The interventricular septum
The centre of the left ventricular cavity
The pulmonary valve
For CMR evaluation of hypertrophic cardiomyopathy (HCM), where is the characteristic location of LGE often found, correlating with disease progression?
Subendocardial enhancement
Mid-myocardial and/or subepicardial enhancement
Diffuse transmural enhancement
Right ventricular free wall enhancement
Why is a Sagittal T2W sequence included in the routine MRI Sternum protocol but not in the routine MRI Clavicle protocol?
To better visualize the sternoclavicular joint.
To provide better anatomical orientation for the elongated sternum
To assess retrosternal pathology
To improve assessment of clavicular fractures.
Why is kinetic analysis less reliable for non-mass enhancement in MRI Breast compared to mass enhancement?
Non-mass enhancement lacks well-defined shape and margin
The enhancement patterns (focal, linear, segmental, regional, diffuse) are more diagnostic
Non-mass enhancement typically shows slower initial uptake
Normal background enhancement significantly alters the curve.
Which of the following is NOT a common indication for WB-MRI?
Multiple myeloma
Lymphoma
Gallstones
Ankylosing spondylitis
What is a major advantage of WB-MRI over PET/CT?
Higher metabolic sensitivity
Use of ionizing radiation
Better soft tissue contrast
Shorter scan time
Which sequence is primarily used in WB-MRI to assess tumor activity?
T1 VIBE
T2 HASTE
Axial DWI (b0, b800)
Coronal STIR
What imaging technique is used to shorten scan time while maintaining image quality?
STIR
GRAPPA
TIRM
VIBE
A hypointense lesion on T2_TIRM likely represents:
Active tumor
Bone marrow edema
Sclerosis or chronic scar
Inflammation
What does hyperintensity on DWI and hypointensity on ADC suggest?
n on T2_TIRM likely represents:
Active tumor
Bone marrow edema
Sclerosis or chronic scar
Inflammation
What does hyperintensity on DWI and hypointensity on ADC suggest?
T2 shine-through
Free diffusion
True restricted diffusion
Normal marrow
In the water-only Dixon image, a bone metastasis typically appears:
Hypointense
Hyperintense
Isointense
Not visible
What does a high fat fraction (>70%) indicate in bone marrow?
Infection
Malignant lesion
Normal fat content
Iron overload
Which MRI phase is most useful for detecting arterial hyperenhancement in HCC?
Portal venous phase
Delayed phase
Arterial phase
Hepatobiliary phase
Which contrast agent is hepatocyte-specific?
Gadovist
Dotarem
MultiHance
Primovist
Which sequence best detects biliary anatomy without contrast?
T1 VIBE
DWI
MRCP (T2-weighted)
T2 FLAIR
Which of the following reduces bowel motion during liver MRI?
Sedation
Buscopan
Fasting for 12 hours
Contrast agent
Which of the following can improve fat suppression uniformity in WB-MRI?
Use of STIR instead of fat-sat
Increasing echo time
Applying cardiac gating
Reducing averages
Which MRI sequence is most sensitive for early disease detection in bone marrow?
T1-weighted Dixon
T2 FLAIR
T2 TIRM
Gradient echo
Which sequence is best for identifying cerebrospinal fluid (CSF) as bright signal?
T1-weighted
T2-weighted
FLAIR
DWI
In T2-weighted images, which of the following appears brightest?
Fat
Muscle
Fluid
Air
Which anatomical structure is NOT part of the neck's vascular system?
Carotid artery
Jugular vein
Vertebral artery
Cerebellum
The Circle of Willis is primarily associated with:
Bone structure
Muscle layers
Blood vessels
Sinuses
Which pathology shows hyperintensity on T2 and is suppressed on STIR?
Lipoma
Air
Tumor
Muscle
What is the purpose of setting the phase encoding direction correctly in head and neck MRI?
Increase scan time
Reduce ghosting artifacts
Improve fat signal
Change slice thickness
Which maneuver improves the visibility of the buccal mucosa in oral cavity tumors?
Prone positioning
Puff cheek technique
Deep breathing
Tapping the cheek
In patients with eGFR < 30, what is the safest contrast recommendation?
Linear GBCA
No precautions
Avoid GBCA unless essential; use macrocyclic only
Use contrast without consent
Which technique helps reduce motion artifacts during neck scans?
Short TE
Large FOV
Padding and patient instruction
High flip angle
What does SAR (Specific Absorption Rate) represent in MRI?
Contrast volume
Noise level
Rate of RF energy absorbed by the body
Signal average ratio
Which of the following is a contraindication for MRI brain?
Titanium aneurysm clips
Cochlear implant
Dental fillings
Sinus infection
What coil is commonly used in MRI brain imaging?
Cardiac coil
Head and neck coil
Surface coil
Body array coil
Which patient positioning landmark aligns with the horizontal laser for MRI brain?
Sternal notch
Nasion
Glabella
Mental point
What is the role of a chaperone in MRI scanning?
Operate the MRI machine
Interpret the images
Support claustrophobic patients
Insert contrast agent
Which of the following is not a standard plain sequence in routine MRI brain protocol?
T1W axial
T2W axial
STIR axial
DWI axial
Which MRI sequence is specifically useful for detecting restricted diffusion (e.g., stroke)?
T1W
FLAIR
DWI
SWI
Which protocol is best suited for evaluating multiple sclerosis (MS)?
Stroke protocol
Dementia protocol
Demyelinating protocol
Orbit protocol
In the epilepsy protocol, which plane is used to evaluate the temporal lobe?
Axial only
Sagittal midline
Coronal oblique
Transverse
The SWI (Susceptibility Weighted Imaging) sequence is helpful in detecting:
CSF leak
Edema
Microbleeds or calcification
Bone fractures
Which structure is located in the midline and seen in sagittal planning?
Hippocampus
Lateral ventricles
Splenium of corpus callosum
Temporal lobe
In IAM imaging, the 3D CISS sequence is primarily used to evaluate:
Middle cerebral artery
Cochlear nerve and internal auditory canal
Ventricles
Frontal sinus
To prevent claustrophobia during MRI scanning, which of the following is recommended?
Give antihistamines
Use a closed MRI tunnel
Provide mirror or headphones
Increase scan time
fMRI primarily detects brain activity through:
Structural changes
Nerve impulse transmission
BOLD signal (Blood Oxygen Level Dependent)
EEG data fusion
What enables parallel imaging to reduce scan time?
Using higher magnetic fields
Multiple receiver coils capturing data simultaneously
Lowering image resolution
Contrast-enhanced techniques
Compressed sensing in MRI relies on:
Oversampling k-space
Undersampling and sparse image reconstruction
Using multiple receiver coils
Contrast agents to shorten T1
Time-of-Flight (TOF) MRA is most effective in:
Imaging soft tissues
High-velocity blood flow in intracranial vessels
Detecting bone fractures
Low-resolution screening
What does DTI (Diffusion Tensor Imaging) measure?
Blood volume
Anisotropic water diffusion along white matter tracts
Cortical atrophy
Oxygen metabolism
ASL (Arterial Spin Labeling) differs from other perfusion techniques by:
Using contrast agents
Being invasive
Magnetically labeling arterial blood without contrast
Measuring structural properties only
Referring to the MRI Cervical Spine examination, where should the laser beam localizer be centered on the patient?
Over the mid-chest
Over the mid-abdomen
Over the mid-neck (2.5cm below the chin in chin-down position)
Over the sternum
What is a common artifact encountered in MRI Cervical Spine examinations that can be avoided by placing a saturation band in front of the esophagus?
Truncation artifact
CSF flow artifact
Swallowing artifacts
Cross-talk artifact
For an MRI Lumbar Spine examination, where should the laser beam localizer be centered?
Over the mid-chest
Over the mid-abdomen (4 inches above the iliac crest)
Over the mid-neck
Over the sternum
What type of sequence is used after contrast to highlight bone metastases in MRI Lumbar Spine?
T2W
T1W
T1FAT SAT
T2 STIR
