CNS Radiology

Question 1

Techniques

Answer 1

CT, MRI

Question 2

CT

Answer 2

Emergencies
Hemorrhages
Assessing bones

Question 3

US

Answer 3

Babies, child
Evaluate alterations ____

Question 4

Fetal MRI

Answer 4

Suspected anomaly in CNS
Very fast secuencies (fetus is moving)

Question 5

Main skull structures

Answer 5

Main, ant, post fosa
Sella turcica

Question 6

Brain lobes

Answer 6

Frontal, occipital, temporal, parietal lobes
Insular lobe
Singular lobe

Question 7

Identify

Answer 7

Lateral sulcus
Frontal
Parietal
Temporal
Occipital
Cerebellum

Question 8

Identify in midline

Answer 8

Corpus callosum
Genuine
Selenium
Optic chiasm
Pituitary gland
Aqueduct
Mesencephalon
Pons
Medulla
IV ventricle
Cereberal _____

Question 9

Coronal plane

Answer 9

Interhemispheric groove
Frontal
Lat ventricle
Lat sulcus
…

Question 10

After contrast administration

Answer 10

Brain remains the same (if blood-brain barrier is altered = enhancement)
Pituitary gland and pituitary stalk are enhanced

Question 11

(MRI) Normal increase in iron content in

Answer 11

Subtantia nigra
Red nucleus

Question 12

T1

Answer 12

Grey matter = grey
White matter = white

Question 13

T2

Answer 13

White matter = grey
Grey matter = white

Question 14

(VIP) Central sulcus

Answer 14

Relevant anatomical mark
Delimitates important structures
First sulcus to reach midline, ant to “bigote”, post to primary motor cortex of the contralateral hand

Question 15

Wernicke’s area is most common to be found in

Answer 15

Left side

Question 16

Broca’s area

Answer 16

Look for the “M” (ant part)

Question 17

Wernicke’s area

Answer 17

Look the “K” (post part)

Question 18

To focus on a specific part in US

Answer 18

Physician makes a thermal lesion

Question 19

Ventricles

Answer 19

Frequent site of pathology

Question 20

CT in spinal cord

Answer 20

Not useful, only when MRI is not available
We can better see after contrast: CT mylography