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Diagnostic Imaging > Advanced Imaging > Flashcards

Advanced Imaging Flashcards

1
Q

This type of imaging merges x-ray with the computer to produce cross-sectional images

a. MRI
b. CT
c. Dx US
d. plain film radiograph

A

CT

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2
Q

This type of imaging takes cross-sections created by numerous projections taken from multiple angles

a. MRI
b. CT
c. Dx US
d. plain film radiograph

A

CT

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3
Q

List the 3 components of the CT Scanner

A

Gantry
operator console
computer

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4
Q

Which component of the CT scanner houses the x-ray rube, detectors and captures the x-ray?

a. gantry
b. operator console
c. computer

A

gantry

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5
Q

How are images taken for CT scans?

a. in slices
b. spinal scanning
c. vertically
d. none of the above

A

spiral scanning

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6
Q

This type of scanning leads to images in planes other than the axial or horizontal plane images

A

spiral scanning

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7
Q

What type of imaging represents radiodensites of various tissues/structures?

a. MRI images
b. CT images
c. Dx US
d. plain film radiograph

A

CT images

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8
Q

CT images are free of _

A

superimposition

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9
Q

This term is defined as something stacked on top of something else

A

superimposition

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10
Q

What is the correct patient positioning for viewing CT images?

a. prone
b. supine
c. standing
d. sitting

A

supine

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11
Q

What are two planes for the viewing position to look at CT images?

A

frontal plane

sagittal plane

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12
Q

The best uses for this type of imaging includes subtle/complex fractures, loose bodies in joint, spinal stenosis, osseous alignment

a. MRI
b. CT
c. Dx US
d. plain film radiograph

A

CT

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13
Q

What are the best uses for CT scans?

A

subtle/complex fractures
loose bodies in joint
spinal stenosis
osseous alignment

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14
Q

What are the advantages of CT scanning?

A

cost less than MRI
less claustrophobia
faster imaging

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15
Q

What are the disadvantages of CT scanning?

A

soft tissue differentiation

radiation exposure

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16
Q

Which imaging is faster?

a. CT scanning
b. MRI

A

CT scanning

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17
Q

This type of imaging uses radio frequency waves in a magnetic field interacting with tissues to produce information/signals

a. MRI
b. CT
c. Dx US
d. plain film radiograph

A

MRI

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18
Q

This type of imaging takes the information/signals/data collected relates to tissues re-emission of radio frequency while in the magnetic field

a. MRI
b. CT
c. Dx US
d. plain film radiograph

A

MRI

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19
Q

This type of imaging is data collected from a measure of energy emitted from tissue molecules after stimulation by radio waves

a. MRI
b. CT
c. Dx US
d. plain film radiograph

A

MRI

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20
Q

Energy emitted _ with various tissues which leads to tissue _

A

differs

differentiatoin

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21
Q

Both relate to realignment of tissue molecules with the magnetic field after radiofrequency wave has been turned off

A

T1 and T2 phenomena

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22
Q

This imaging measures energy released shortly after RF turned off

a. T1 imaging
b. T2 imaging
c. MRI imaging
d. CT scans

A

T1 imaging

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23
Q

This imaging measures energy released longer OR later after RF turned off

a. T1 imaging
b. T2 imaging
c. MRI imaging
d. CT scans

A

T2 imaging

24
Q

T1 radiofrequency off and measuring is done _

A

quickly

25
Q

T2 radiofrequency goes off and realigns with _ time

A

longer

26
Q

This type of imaging is when tissues realigning fast image bright (fat), realigning slow image dark (water)

a. T1 imaging
b. T2 imaging
c. MRI imaging
d. CT scans

A

T1 imaging

27
Q

This type of imaging is when tissues realigning fast image bright (water), realigning slow image dark (fat)

a. T1 imaging
b. T2 imaging
c. MRI imaging
c. CT scans

A

T2 imaging

28
Q

What are the 3 components of the MRI scanner?

A

gantry
workstation
computer

29
Q

This part of an MRI scanner houses the magnet, coils with radiofrequency and the table

a. gantry
b. workstation
c. computer

A

gantry

30
Q

MRI images displayed in _ based on pulse sequenced used, T1 or T2

A

grayscale

31
Q

MRI images can take slices in _ plane

A

any

transverse, sagittal, frontal

32
Q

This type of view of an MRI image is as if you’re facing the patient

a. frontal
b. transverse
c. sagittal

A

frontal

33
Q

This type of view of an MRI image is as if you are at the feet of the patient

a. frontal
b. transverse
c. sagittal

A

transverse

34
Q

This type of view of an MRI image is as if you are looking at the patient from the right or left

a. frontal
b. transverse
c. sagittal

A

sagittal

35
Q

MRI images are best for

A

variation in bone marrow for tumors/avascular necrosis
soft tissue detail - disk herniation/nerve root impingement
stages of neoplasm

36
Q

This image is best for a variation in bone marrow for tumors/avascular necrosis, soft tissue detail - disc herniation/nerve root impingement, stages of neoplasm

a. MRI
b. CT
c. Dx US
d. plain film radiograph

A

MRI

37
Q

MRI images take (shorter/longer) time to obtain

A

longer

38
Q

What are the disadvantages of MRI images

A

does not image cortical bone well
longer time to obtain images
claustrophobia
cost - high

39
Q

What are 2 contraindications for MRI imaging?

A

ferrous metals

claustrophobia

40
Q

This type of imaging uses sound waves reflected off tissue interfaces to produce cross-sectional images

a. MRI
b. CT
c. Dx US
d. plain film radiograph

A

Dx US

41
Q

What are the components of a Diagnostic Ultrasound?

A

pulser
transducer
scan converter
monitor

42
Q

the _ produces the electrical energy sent through the _ and turns into a sound wave

A

pulse

transducer

43
Q

What produces the vibration producing the sound wave?

a. pulser
b. transducer
c. crystal
d. scan converter

A

crystal

44
Q

Dx US images are viewed as a _, oriented in the direction of the transducer/US beam, superficial to deep

A

slice

45
Q

What are two ways to view Dx US images?

A

longitudinal

transverse

46
Q

What is the clinical use of a Dx US?

A

image a variety of MS tissues under a variety of conditions

47
Q

Dx US is best for

A

soft tissues

48
Q

What are the advantages of Dx US?

A 
low cost 
portable
modifiable exams
no hazard to patient
differentiates tissue structure/architecture
49
Q

What are the disadvantages of Dx US?

A

operator dependent
no bone penetration
does not cross air interface
obese

50
Q

What type of imaging is good for seeing a variation in bone marrow for tumors/avascular necrosis?

a. MRI
b. CT scan
c. Dx US
d. plain film radiograph

A

MRI

51
Q

What type of imaging is good for soft tissue detail disc herniation and nerve root impingement?

a. MRI
b. CT scan
c. Dx US
d. plain film radiograph

A

MRI

52
Q

What type of imaging is good for seeing stages of neoplasm?

a. MRI
b. CT scan
c. Dx US
d. plain film radiograph

A

MRI

53
Q

What type of imaging is good for seeing subtle/complex fractures?

a. MRI
b. CT scan
c. Dx US
d. plain film radiograph

A

CT scan

54
Q

What type of imaging is good for seeing loose bodies in joint?

a. MRI
b. CT scan
c. Dx US
d. plain film radiograph

A

CT scan

55
Q

What type of imaging is good for seeing spinal stenosis or narrowing?

a. MRI
b. CT scan
c. Dx US
d. plain film radiograph

A

CT scan

56
Q

What type of imaging is the best for soft tissues?

a. MRI
b. CT scan
c. Dx US
d. plain film radiograph

A

Dx US

Diagnostic Imaging (10 decks)

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