Neuroradiology Flashcards
1
Q
- A native head X-Ray
A
– Has very low sensitivity and is becoming less frequently used
2
Q
- For which of the following indications is CT not appropriate? -
A
Spinal pathology
3
Q
- Fresh intracranial haemorrhage appears on a native CT -
A
As a hyperdense lesion
4
Q
- When a stroke is suspected, the first method of choice is -
A
Native CT of the head
5
Q
- What types of lesions in the brain are hyperdense on a native CT? –
A
Calcifications, hemorrhagic contusion and epidural bleeding
6
Q
- The most sensitive imaging method for displaying the CNS structures is -
A
MRI
7
Q
- Acute MRI can be indicated for -
A
Suspected spinal cord injuries
8
Q
- Which of these brain examinations lasts the longest? -
A
MRI
9
Q
- MRI should be the first-choice method for which brain areas? -
A
The sellar region and the brainstem
10
Q
- Head CT is ideal for -
A
Evidence of intracranial haemorrhage
11
Q
- Why is FLAIR sequence on MRI is used in neuroradiology? -
A
Due to the suppression of fluid signal we distinguish better T2 hypersignal pathologies
12
Q
- For the evaluation of pathologies near the ventricular system on MRI, it is best to use -
A
FLAIR
13
Q
- Which sequence is ideal for displaying pathologies of white matter on MRI? -
A
FLAIR
14
Q
- Which sequence in brain MRI is sensitive to hemoglobin breakdown products (and thus, for example, is good for hematoma diagnosis)?
A
- T2*
15
Q
- Which sequence is best for evaluating areas rich in fat? -
A
SPIR
16
Q
- The signal of DWI / SE sequence on MRI depends -
A
On the Brown’s motion of the molecules
17
Q
- Hypersensitivity region on DWI-ADC maps on MRI signifies so-called diffusion restriction, which is usually -
A
A sign of cytotoxic edema.
18
Q
- Most brain pathologies are ………… on a T2 weighted MRI image (fill in the space) -
A
hypersignal
19
Q
- Which of these are hyposignal on T2 weighted images on an MRI of the brain? –
A
Calcification and bleeding
20
Q
- Large fat structures (such as lipoma) are ………….. on T1 weighted images on an MRI of the brain (fill in the space) -
A
hypersignal
21
Q
- Ultrasound of the brain
A
- is used in newborns
22
Q
- When brain hemorrhage is suspected, the first-choice method for investigation is –
A
Native CT of the head
23
Q
- To exclude a skull fracture, the method of choice is
A
– Native CT
24
Q
- What is the best diagnostic modality for processes in the posterior cerebral fossa? -
A
MRI
25
Q
- What is the best diagnostic modality for pathologies of the cerebral white matter? (eg Multiple Sclerosis) -
A
MRI
26
Q
- Both temporal bones are visible on the following sections
A
- Frontal and transverse
