Brainscape's Knowledge GenomeTM

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


See full index

RT7CADRAD > COMPUTED & DIGITAL RADIOGRAPHY > Flashcards

COMPUTED & DIGITAL RADIOGRAPHY Flashcards

1
Q

What is the formula for measurement of kVp?

A

kVp= body thickness x2 + constant

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

it is a digital acquisition process that produces images that have much better contrast than a conventional x-ray film system

A

Computed Radiography (CR)

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

a process of capturing radiographic data from a conventional x-ray machine and processing the data digitally to produce crisp and high quality radiographic images

A

Computed Radiography (CR)

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

it is placed in a cassette instead of a piece of film

A

Imaging Plate (IP)

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

responsible for capturing and storing x-ray

A

Imaging Plate (IP)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

it is where the image is developed instead of a film processor; and extracts information stored in the plate and produce a digital image

A

CR reader

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

what material does an imaging plate made of

A

photostimulable phosphor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

has a special property of storing the x-ray energy in a latent form and releasing the same when stimulated by laser energy in the CR reader / digitizer

A

photostimulable phosphor

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

is a material analogous to an inorganic scintillator, with the difference that in a storage phosphor, a significant part of the energy released on interaction with radiation is stored in long-living traps.

A

storage phosphor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what kind of material is phosphor

A

bariumflourohalide

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

give the layers of an imaging plate

A
  1. phosphor layer
  2. protective coat
  3. conductive layer
  4. support and laminate layers
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

an image exposed but not developed

A

latent image

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

created image in a form of energy

A

latent image

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what does the beam releases after the stimulation with a laser

A

electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what is the typical wavelength of the stimulating laser

A

633nm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

electrons emit luminescent light

A

falling back

17
Q

typical wavelength for the emitted light

A

390nm

18
Q

Stimulable Phosphor Receptor Reading Phase

A

scanning laser –> analog/digital converter –> digital image –> computer memory

19
Q

is emitted light intensity proportional to the original incident x-ray intensity? yes or no

A

yes

20
Q

it is erased from the plate by an intense light source which returns electrons to their original state

A

residual image

21
Q

what is the common size for a cassette?

A

14 x 17 nm

22
Q

TRUE OR FALSE: storage phosphor plate fits inside a standardized size cassette and is exposed to x-ray exactly like film

A

true

23
Q

where the patient demographic and exam data is store on the microchip attached to the cassette

A

patient ID station

24
Q

it is where the plate is inserted and scanned with high power laser, where electrical signals are converted into digital image

A

digitizer

25
Q

it travels to the speed of light

A

x-rays

26
Q

it is responsible for amplifying the energies/ light; and it is converted into photo diode to electrical signals

A

photomultiplier

27
Q

what happens to storage phosphor after it is scanned?

A

phosphor plate is erased by exposing to a bright light within the digitizer

28
Q

where the digitized image is processed on a processing server and its displayed on its monitor

A

work station

29
Q

how many times can we use Storage Phosphor Plate (SPP)?

A

depends on how carefully it is handled

30
Q

how many exposure cycles does the imaging plate has

A

5,000 exposurere cycles

31
Q

TRUE OR FALSE: one CR can support multiple x-ray rooms

A

true

32
Q

what is the last product in CR

A

film

33
Q

what is the first product in conventional x-ray

A

film

34
Q

TRUE OR FALSE: CR can be developed without digitizer

A

false, must have digitizer

35
Q

illustrate the CR workflow

A

cassette w/ IP -> Exposure -> Identification (patient data) ->Digitize -> printing processing server -> storage

RT7CADRAD (3 decks)

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