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Diagnostic Imaging > Principles of imaging > Flashcards

Principles of imaging Flashcards

1
Q

PT’s should be able to recongize when diagnostic imaging is needed to complete a comprehensive exam (True/false)

A

true

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2
Q

PTs should be able to _ info from the radiologists written report into the PT treatment plan

A

integrate

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3
Q

PTs should be able to _ understand the image to obtain info that may not be on the written report but be useful to the PT

A

visually

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4
Q

PTs should be able to recognize when imaging is NOT needed (true/false)

A

true

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5
Q

PTs should be able to _ regarding imaging

A

communicate effectively

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6
Q

This describes the branch of medicine concerned with radioactive substances including x-rays, radioactive isotopes, and ionizing radiations

a. radiology
b. radiologist
c. radiographer

A

radiology

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7
Q

The MD specializing in radiology is defined as

a. radiology
b. radiologist
c. radiographer

A

radiologist

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8
Q

The RT technician that makes the images is defined as

a. radiologist
b. radiology
c. radiographer

A

radiographer

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9
Q

The newer term for radiology is described as

A

medical imaging

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10
Q

This term is defined as: encompasses the expanded scope of radiologic practice that includes the application of x-rays, radioactive isotopes, and ionizing radiations to prevention, diagnosis, and treatment of disease

A

diagnostic/medical imaging

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11
Q

What are 3 areas of radiologic practice?

A 
interventional radiology (treatment) 
radiation oncology (treatment)
diagnostic imaging (prevention and diagnose pathology)
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12
Q

This term is defined as a subspecialty of radiology concerned with the diagnostic evaluation of the musculoskeletal system

A

musculoskeletal imaging

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13
Q

Conventional radiography includes:

A

plain film radiography
contrast-enhanced radiographs
conventional tomography

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14
Q

What are the two categories of modalities of imaging?

a. contrast and conventional radiography
b. conventional and plain film radiography
c. conventional and advanced imaging
d. advanced imaging and contrast radiography

A

conventional and advanced imaging

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15
Q

Radiographs, fluoroscopy and contrast radiographs/studies are what category of imaging?

a. conventional radiography
b. advanced imaging
c. contrast radiography
d. none of the above

A

conventional radiography

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16
Q

Computed tomography (CT), Magnetic Resonance Imaging (MRI), Dx Ultrasound (US), Nuclear Medicine (bone scan) are what category of imaging?

a. conventional radiography
b. advanced imaging
c. contrast radiography
d. none of the above

A

advanced imaging

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17
Q

This is described as a moving x-ray or a video image using x-ray

a. radiograph
b. fluoroscopy
c. contrast radiographs/studies

A

fluoroscopy

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18
Q

The process of obtaining an image using x-rays from a radiological modality is described as

A

conventional radiography

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19
Q

An x-ray film containing an image of an anatomic part of the patient requires what 3 things?

A

x-ray beam/source
patient
x-ray film/receptor

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20
Q

an x-ray represents different _ of the tissue

A

densities

21
Q 
Results of plain film radiography can be 
_ for clinical dx thus _ tx 
_ for clinical dx thus _ tx 
_ for one dx but _ of another 
_ thus need additional studies
_
A 
positive - direct 
negative - direct 
negative - suspicious 
inconclusive
wrong
22
Q

x-rays travel straight (true/false)

A

false

23
Q

x-ray beams travel through various _ of the patient which _ varying amounts of radiation depending on the _

A

tissues
absorb
densities

24
Q

The physical qualities of an object that determine how much radiation it absorbs from an x-ray beam/tube describes

a. radiodensity
b. composition
c. thickness
d. radiopaque

A

radiodensity

25
Q

What 2 factors determine radiodensity:

A

composition

thickness

26
Q

This refers to the amount of blackening on the radiograph; inverse relationship exists between ‘radiodensity’ of an object and the ‘radiographic density’ on the radiograph

a. radiographic density
b. radiodensity
c. composition
d. radiopaque

A

radiographic density

27
Q

This is defined as the area that shows up white and brighter

A

radiopaque

28
Q

This is defined as the area that shows up darker and more grey

A

radiolucuent

29
Q

Radiopaque is (high/low) radiodensity

A

high

30
Q

Radiolucent is (high/low) radiodensity

A

low

31
Q

the view and the direction the x-ray projected from the tube through the patient striking the film is described as

A

projections

32
Q

One view is

A

no view

33
Q

How many views do you need to have to understand the radiograph?

a. only one
b. more than one
c. at least 4 views
d. none of the above

A

more than one

34
Q

This view is described as 90 degrees to the AP, perpendicular to another projection

a. AP
b. PA
c. oblique
d. lateral

A

lateral

35
Q

Radiographic images need to be _ to each other

A

perpendicular

36
Q

The film markers on the radiographic film identify

A

patient name, time, date, doctor

37
Q

This term is identified as the amount of blackening on the radiographic

a. radiographic density
b. radiographic contrast
c. detail
d. radiographic distortion

A

radiographic density

38
Q

Radiographic density refers to what two concepts?

A

overexposure or underexposure

39
Q

This term refers to too much blackness on the film or too much power to the machine

A

over exposure

40
Q

This term refers to too little blackness or too much whiteness

A

under exposure

41
Q

This term is defined as the difference in appearance between objects/tissues of different densities

a. radiographic density
b. radiographic contrast
c. detail
d. radiographic distortion

A

radiographic contrast

42
Q

This term refers to how sharp the image appears

a. radiographic density
b. radiographic contrast
c. detail
d. radiographic distortion

A

recorded detail

43
Q

What are 2 reasons for reduced sharpness?

A

movement and distance from film plate

44
Q

This term is referred to as the difference between the actual object examined and its recorded image

a. radiographic density
b. radiographic contrast
c. radiographic detail
d. radiographic distortion

A

radiographic distortion

45
Q

The least amount of distortion is where?

A

the central ray is hitting

46
Q

Contrast-enhanced radiographic can only be done on plain film (true/false)

A

false

MRI and CT scan can

47
Q

Conventional Tomography is

A

the old CT scan

48
Q

Computed Tomography is

A

the new CT scan

49
Q

This type of imaging study is when radio nuclei is injected and flows through the body and the clumps up in hot spots of concentration

A

nuclear imaging

Diagnostic Imaging (10 decks)

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