Quiz
Digital Fluoroscopy Bushong 26
This quiz has question types that open in the usual player.
Questions in this quiz (11)
1What are the advantages of digital fluoroscopy over conventional fluroscopy?
- ASpeed of image acquisition
- BSpeed of postprocessing
- CEnhanced image contrast
- DDecrease patient dose
2Digital fluoroscopy's tube current is measured in hundreds of mA instead of less than [blank_start]5[blank_end] mA, as in image-intensifying fluoroscopy.
- A5
- B10
- C1
- D20
3What is interrogation time?
- AThe time required for the x-ray tube to be switched on and reach selected levels of kilovolt peak (kVp) and mA.
- BThe time required for the x-ray tube to be switched off.
- CThe fraction of time that the x-ray tube is energized.
4Duty cycle is the time required for the x-ray tube to be switched off.
- ATrue
- BFalse
5Pulse progressive fluoroscopy is [blank_start]reduces[blank_end] patient radiation dose.
- Areduces
- Bincreases
6The sensitive component of a CCD is a layer of crystalline silicon.
- ATrue
- BFalse
7[blank_start]Progressive mode[blank_end] produces a sharper image with less flicker than [blank_start]interlaced mode[blank_end].
- AProgressive mode
- BInterlaced mode
- Cinterlaced mode
- Dprogressive mode
8[blank_start]Mask mode[blank_end]: Method of temporal subtraction that results in successive subtraction images of contrast-filled vessels.
[blank_start]Temporal subtraction[blank_end]: Computer-assisted technique whereby an image obtained at one time is subtracted from an image obtained at a later time.
[blank_start]Hybrid subtraction[blank_end]: Technique that combines two types of subtraction.
[blank_start]Time-interval difference (TID) mode[blank_end]: Technique that produces subtracted images from progressive masks and the frames that follow.
[blank_start]Energy subtraction[blank_end]: Technique that takes advantage of changing contrast media during the time of the examination and require no special demands on the high-voltage generator. Uses two different x-ray beams alternately to provide a subtraction image that results from differences in photoelectric interaction.- AMask mode
- BTemporal subtraction
- CHybrid subtraction
- DTime-interval difference (TID) mode
- EEnergy subtraction
- FTemporal subtraction
- GMask mode
- HHybrid subtraction
- ITime-interval difference (TID) mode
- JEnergy subtraction
- KHybrid subtraction
- LMask mode
- MTemporal subtraction
- NTime-interval difference (TID) mode
- OEnergy subtraction
- PTime-interval difference (TID) mode
- QMask mode
- RTemporal subtraction
- SHybrid subtraction
- TEnergy subtraction
- UEnergy subtraction
- VMask mode
- WTemporal subtraction
- XHybrid subtraction
- YTime-interval difference (TID) mode
9[blank_start]Conventional[blank_end] fluoroscopy: Images generated directly from x-ray
[blank_start]Digital[blank_end] fluoroscopy: Images produced by pulse-progressive fluoroscopy- AConventional
- BDigital
- CDigital
- DConventional
10In conventional fluoroscopy:
- The input phosphor converts [blank_start]x-rays[blank_end] into light
- [blank_start]Photocathode[blank_end] converts light into electrons
- Output phosphor converts [blank_start]electrons[blank_end] back into light- Ax-rays
- Bphotons
- Celectrons
- DPhotocathode
- EImage intensifier
- FCCD
- Gelectrons
- Hphotons
- Ix-rays
11In digital fluoroscopy:
- x-rays are converted to [blank_start]light[blank_end] by a(n) [blank_start]image intensifier[blank_end]
- [blank_start]light[blank_end] is converted to electrical signal by CCD- Alight
- Belectrons
- Cphotons
- Denergy
- Eimage intensifier
- Finput phosphor
- Goutput phosphor
- Hlight
- Ix-ray
- Jelectrons
- Kphotons
Information
- Description
- Bushong Chapter 26
- Author
- Korie Hi
- Language
- English
- Views
- 569
- Tags
- Rating
- No ratings yet Rate this quiz