BRAIN

Question 1

If a brain exam is being performed and the request is made to rule out acoustic neuroma, a protocol with thin cuts through the ______ Should be performed

Answer 1

Internal auditory canal‘s

Question 2

The ________ imaging plane would be the most optimal slice orientation for a valuation of Arnold Chiari malformation and its inferior cerebellar tonsillar herniation

Answer 2

Sagittal

Question 3

A FLAIR Sequence with a long TI is utilized to

Answer 3

Null the signal from CSF

Question 4

If a brain exam is being performed and the request is made to rule out microadenoma due to elevated prolactin levels, a protocol with thin cuts through the _______ Should be performed

Answer 4

Orbit/optic nerves

Question 5

MR findings of a low volume corpus callosum and increased white matter lesions can be indicated of a diagnosis of

Answer 5

Multiple sclerosis

Question 6

If a brain exam is being performed and the request is made to evaluate cranial nerves VII and VIII Due to the patient’s symptoms of tinnitus, a protocol with thin cuts through the ________ Should be performed

Answer 6

Internal auditory canal‘s

Question 7

How many cranial nerves are there

Answer 7

12

Question 8

To best visualize the pituitary gland in MRI, high resolution T1 weighted images in the _________ Planes pre-and post contrast are optimal

Answer 8

Sagittal and coronal

Question 9

________ Is a condition in which part of the cerebellar tonsil is displaced through the foreman magnum

Answer 9

Chiari malformation

Question 10

When imaging a hemorrhagic infarct in the brain, which pulse sequence would demonstrate the magnetic susceptibility effects better

Answer 10

Gradient echo

Question 11

________ Sequences are performed to suppress CSF and aid in the detection of the myelination

Answer 11

FLAIR

Question 12

On a T2 weighted image, CSF appears right because it has a _________ Relaxation time

Answer 12

Long T2

Question 13

The stalk of the pituitary gland is also known as the

Answer 13

Infundibulum

Question 14

The right and left optic nerve join at the

Answer 14

Optic chiasm

Question 15

The medial and lateral rectus muscles are located in the

Answer 15

Eyes

Question 16

What scan plane would be optimal for a visualization of the hippocampus

Answer 16

Coronal oblique

Question 17

Which dural venous sinuses drain from the confluence of sinuses (by the internal occipital protuberance) to the mastoid portion of the Temporal

Answer 17

Transverse sinuses

Question 18

Which structure lies adjacent to the head of the caudate nucleus

Answer 18

Anterior horn of the lateral ventricle

Question 19

In the TMJ’s, the articular disc lies between what to anatomical structures

Answer 19

Mandibular fossa and the mandibular condyle

Question 20

The insular cortex is primarily responsible for

Answer 20

Motor control; cognitive function

Question 21

Which cranial nerve is responsible for Bell’s palsy

Answer 21

Cranial nerve VII the facial nerve

Question 22

To accurately depict the seventh and eighth cranial nerves, the patient would be centered at the level of the

Answer 22

External auditory meatus

Question 23

The dural venous sinuses the drain into the internal jugular vein are the

Answer 23

Sigmoid sinus

Question 24

When positioning a patient for a brain MRI, the centering should be placed at what anatomical landmark

Answer 24

Nasion

Question 25

If the third ventricle is dilated, but the fourth ventricle is not, there would then be pathology associated with

Answer 25

Aqueduct of Sylvius (a CSF containing structure that connects the third ventricle to the fourth ventricle)

Question 26

A depression in the base of the skull where the pituitary gland is located is called the

Answer 26

Sella turcica

Question 27

Which fissure divides the frontal and parietal lobe‘s from the temporal lobe‘s

Answer 27

Sylvian Fissure

Question 28

The _______ runs the length of the falx cerebri

Answer 28

Superior sagittal sinus

Question 29

How do the vertebral arteries enter the cranium

Answer 29

Foramen magnum

Question 30

What would be the most useful sequence for evaluation of an acute stroke

Answer 30

Diffusion weighted sequence

Question 31

When performing an MRI to confirm a suspected pituitary microadenoma, contrast is injected an imaging is performed

Answer 31

Rapidly because lesions appear as low signal intensity compared to the enhanced pituitary gland

Question 32

When performing MRI to rule out brain tumors, the weighted images acquired to evaluate the extent of lesion involvement, after injection of gadolinium, are

Answer 32

T1

Question 33

Which arteries join together to form the basilar artery

Answer 33

Vertebral arteries

Question 34

Which intracranial artery passes through the sylvian Fissure

Answer 34

Middle cerebral

Question 35

The components that make up the circle of Willis include

Answer 35

Posterior/anterior cerebral, anterior/posterior communicating, internal carotid

Question 36

To optimize brain imaging when evaluating patients for high prolactin level, an FDA approved contrast agent can be administered

Answer 36

With 1/2 dose followed by dynamic imaging

Question 37

The patient with a history of hydrocephalus can be imaged using cardiac getting for

Answer 37

Minimizing pulsatile flow motion artifact in the brain

Question 38

When scanning patients to rule out brain tumors, the weighted images acquired to evaluate the extent of the lesion, after injection of gadolinium are

Answer 38

T1

Question 39

To optimize brain imaging when evaluating patients for metastatic disease, and FDA approved contrast agent can be administered

Answer 39

With full dose followed by delayed imaging of MTSE

Question 40

To best visualize the pituitary gland an MRI, the optimal plane for high resolution images are

Answer 40

Sagittal and Coronal

Question 41

Two best visualize the IAC an MRI, the optimal plane for high resolution images are

Answer 41

Coronal and axial

Question 42

For a patient with a suspected pituitary microadenoma, contrast is injected an imaging is performed

Answer 42

Rapidly because lesions have low signal intensity compared to the enhanced pituitary gland

Question 43

Typical brain protocols for history of concussion consist of

Answer 43

1. sag t1 2. Ax t2 fse 3. Ax gre 4. Ax t2 flair 5. Cor t2 fse 6. Ax diffusion

Question 44

The cranial nerves running through the internal auditory canal’s are

Answer 44

VII and VIII

Question 45

On a typical diffusion MRI image what does the high signal indicate

Answer 45

Early (hyper acute) infarct

Question 46

For most brain imaging procedures, the patient is positioned______ and centered for landmark at the______

Answer 46

Supine/nasion

Question 47

For most TMJ imaging procedures, the patient is positioned______and centered for landmark at the______

Answer 47

Supine/external auditory meatus 

Question 48

For evaluation of a patient with tinnitus images should be centered at the level of the

Answer 48

Internal auditory meatus

Question 49

Diffusion images are typically acquired with a B value of

Answer 49

1200 ms

Question 50

On a T2FSE sequence, CSF appears bright because

Answer 50

Water has a long T2 relaxation time

Question 51

The lesion on the enhanced images (T1 post GAD) appear bright because gadolinium

Answer 51

Shortens the T1 relaxation time

Question 52

When performing an MRA of the cerebral artery‘s, a saturation band should be placed______for axial slices

Answer 52

Superior

Question 53

Magnetic susceptibility effects are more prominent with

Answer 53

Gradient echo sequences

Question 54

Susceptibility affects can be reduced by

Answer 54

Reducing FOV, reducing the TE, increasing BW

Question 55

The cranial nerve associated with the optic nerve is the

Answer 55

Second cranial nerve

Question 56

The MRV technique that is typically used for the evaluation of venous structures of the head is

Answer 56

2D TOF

Question 57

On the coronal display of the MRA of brain, the PICA arises from

Answer 57

Vertebral arteries

Question 58

T2 weighted fluid attenuated inversion recovery (FLAIR) sequences are typically used for the evaluation of

Answer 58

Periventricular white matter disease

Question 59

Gradient echo sequences acquired for the evaluation of hemorrhagic lesions relay on

Answer 59

Susceptibility

Question 60

A FLAIR sequence is utilized to suppress the signal from

Answer 60

CSF

Question 61

When doing an MRV of the superior sagittal sinus, a saturation band should be placed______to the axial slices

Answer 61

Inferior

Question 62

The signal intensity on diffusion sequence is related to

Answer 62

Restricted tissue and amount of diffusion

Question 63

The basic MR principle with regard to MR spectroscopy is

Answer 63

Difference between two chemicals and chemical shift