Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Diagnostic Imaging > Intro > Flashcards

Intro Flashcards

1
Q

What 5 things does imaging help a PT visualize?

A
  • Growth
  • Development
  • Healing
  • Disease
  • Pathology
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are 6 indications for the use of diagnostic imaging?

A
  • When a clinical diagnosis is uncertain, and the patient management is affected by the diagnosis.
  • When clinical red flags or sinister or systematic abnormalities need to be excluded.
  • When the diagnosis is known, but the extent of injury/ complications are unknown and affect treatment
  • Treatment has failed for unknown reasons
  • Objective evidence required to document the presence, or progression of disease.
  • When preoperative localization or planning information is needed
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What 2 things does collaboration between PTs and other health professionals require?

A
  • Understanding what each party has to offer

- Respecting professional boundaries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

In direct access, PTs will need to refer patients for imaging. What 3 responsibilities will PTs have in regard to this future?

A
  • Understand what studies are available, and what each type of imaging is appropriate for.
  • Understand and integrate the radiologist’s report
  • Review radiographs with patients (Pt ed)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the PTs role in radiology?

A
  • Collaborate with diagnoses
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What roles do PTs not play in radiology?

A
  • Prevention

- Treatment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is radiology?

A
  • Use of radiant energy and radioactive substances to prevent, diagnose, and treat disease.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the most effective means of demonstrating a bone or joint abnormality?

A

Conventional radiology/ plain film/ x-ray.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are x-rays?

A
  • Invisible radiations of the EM spectrum.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How is wavelength related to penetrating power?

A

Shorter wavelength –> More penetrating power.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

By what 2 methods does x-ray imprint an image?

A
  • Expose film

- Excite charged coupled device

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the 3 correct terms for images produced by x-ray?

A
  • Radiograph
  • Plain film
  • Conventional radiograph
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the 2 elements of an x-ray vacuum tube, and what are their role?

A 
Heated filament:
- Contains cathode (-)
- Source of electrons
Spinning Anode (+)
- Electrons crash into anode
- Energy lost in the form of x-ray protons
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What controls x-ray emission/ beam size?

A
  • Lead shutters/ also colluminate beams
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How is the size of the x-ray beam determined by the operator?

A
  • Visible light is also shown through lead shutters.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Once x-rays have passed through the x-ray vacuum, how is the image formed?

A
  • Beam travels through patient
  • Different density tissues absorb x-rays differing amounts
  • X-rays exit patient
  • Image intercepted by image receptor
17
Q

What is the image that exits the patient termed?

A
  • Aerial image
18
Q

What are the 3 types of image receptors?

A
  • Film/ screen
  • Fluoroscopy
  • Digital
19
Q

What are film/screen image receptors?

A
  • Cassettes that contain reflection and intensifying screens and photographic film
20
Q

What effect do differing body parts have on film/screens?

A
  • Different sizes for different body parts
21
Q

Is film or digital better quality for plain film?

A

No difference.

22
Q

What is another name for fluoroscopy?

A
  • Dynamic radiographs
23
Q

What are 3 uses of fluoroscopy?

A
  • Motion studies
  • Guiding needle placement to deeper anatomical structures
  • Following the movement of contrast.
24
Q

Where might contrast be tracked using fluoroscopy?

A
  • Through GI tract

- Swallowing

25
Q

What imaging is used for needle placement in more superficial areas?

A
  • US
26
Q

What vertebral injury is fluoroscopy used for?

A

Vertebral fractures.

27
Q

What advantages does digital have over film?

A
  • Post collection processing such as: zoom, overlay, contrast, etc…
28
Q

Is the digital processing of x-rays a simple process?

A

No; there are many steps in converting X-ray to digital signal.

29
Q

What is the advantage and disadvantage of fluoroscopy?

A

+: Motion

-: More exposure

30
Q

What is the advantage of plain film?

A
  • Hard, permanent copy
31
Q

What are 6 disadvantages of film?

A
  • Hard, permanent copy (misplacement, transport, storage)
  • Can’t alter image
  • Image degrades over time
  • Takes time for chemicals to develop
  • Supplies are not reusable (cost, environmental damage)
  • Possible higher radiation exposure
32
Q

What are 7 advantages of digital?

A
  • Post collection processing
  • Portability/ access around the world of past and present images
  • Image doesn’t degrade over time
  • May have soft or hard copy
  • Computer assists in diagnosis
  • Less supplies needed reducing cost and damage to environment
  • May lead to less radiation exposure
33
Q

What is the disadvantage of digital?

A
  • Higher initial costs
34
Q

How can the PT help guide the radiologist in their referral?

A
  • History
  • Signs/ symptoms
  • Potential/ suspected problems
35
Q

What are the 5 possible results of an imaging study?

A
  • Positive for tentative clinical Dx
  • Negative for tentative clinical Dx
  • Negative for tentative clinical Dx, but suggestive of another Dx
  • Inconclusive; requires further imaging
  • Wrong Dx caused by false negative/ false positive
36
Q

What is required most of the time to diagnose with imaging?

A
  • Correlation with clinical findings
37
Q

How much does a typical series of 5 radiographs cost?

A
  • 350 doillars
38
Q

What is the routine strength of an x-ray?

A

2000 - 3000 mrad

(milli)rad

Diagnostic Imaging (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions