2.2 and 2.5 Neuroradiology and neurosonography

Question 1

Ideal for examining bone, acute blood, calcified tumors using an x-ray tube that rotate around the pt’s head

Answer 1

CT scan

Question 2

hyperdense (white) in CT scan

Answer 2

Bones, clotted blood, unclotted blood

Question 3

Isodense (gray) in CT scan

Answer 3

Gray matter, white matter, csf

Question 4

Hypodense (dark/black)

Answer 4

Water,fat and air

Question 5

Provides more detailed anatomical images of the brain and the spine. Generates images the result from the effects of changing strong magnetic fields

Answer 5

MRI

Question 6

Used to see anatomical structures

Answer 6

T1

Question 7

Used to see pathologic problems

Answer 7

T2

Question 8

For subarachnoid hemorrhage and multiple sclerosis

Answer 8

FLAIR

Question 9

For hyperacute stroke

Answer 9

ADC, DWI, PWI

Question 10

Looks at the cerebral vasculature

Answer 10

MRA

Question 11

Used for mass lesion to determine whether infectious process or tumor

Answer 11

MRS

Question 12

Same as T2 except free CSF (ventricles, cisterns, sulci) is suppressed black

Answer 12

FLAIR

Question 13

PET scan uses _______ as a marker wherein it accumulates in the neurons and is an index of the rate of glucose metabolism

Answer 13

F-labeled fluorodeoxyglucose (FDG)

Question 14

Technique used for measuring brain activity by detecting the changes in blood oxygenation and flow that occurs in response to neural activity. For cortical mapping

Answer 14

Functional MRI

Question 15

Provides detailed 3 dimensional images of the brain using ionizing radiation

Answer 15

CT scan

Question 16

Usually used to test for blocked or narrowed carotid arteries which can indicate an increased risk of stroke

Answer 16

Carotid UTZ

Question 17

Non invasive, non ionizing and safe technique that uses doppler transducer for assessment of intracerebral blood flow

Answer 17

Transcranial doppler sonography

Question 18

Test is mostly done in babies to evaluate complications of premature birth as it produces pictures of the brain and inner fluid chambers through the CSF

Answer 18

Cerebral UTZ