Digital Fluoroscopy Bushong 26

Digital fluoroscopy's tube current is measured in hundreds of mA instead of less than 5 10 1 20( 5, 10, 1, 20 ) mA, as in image-intensifying fluoroscopy.

Pulse progressive fluoroscopy is reduces increases( reduces, increases ) patient radiation dose.

Progressive mode Interlaced mode( Progressive mode, Interlaced mode ) produces a sharper image with less flicker than interlaced mode progressive mode( interlaced mode, progressive mode ).

Mask mode Temporal subtraction Hybrid subtraction Time-interval difference (TID) mode Energy subtraction( Mask mode, Temporal subtraction, Hybrid subtraction, Time-interval difference (TID) mode, Energy subtraction ): Method of temporal subtraction that results in successive subtraction images of contrast-filled vessels.
Temporal subtraction Mask mode Hybrid subtraction Time-interval difference (TID) mode Energy subtraction( Temporal subtraction, Mask mode, Hybrid subtraction, Time-interval difference (TID) mode, Energy subtraction ): Computer-assisted technique whereby an image obtained at one time is subtracted from an image obtained at a later time.
Hybrid subtraction Mask mode Temporal subtraction Time-interval difference (TID) mode Energy subtraction( Hybrid subtraction, Mask mode, Temporal subtraction, Time-interval difference (TID) mode, Energy subtraction ): Technique that combines two types of subtraction.
Time-interval difference (TID) mode Mask mode Temporal subtraction Hybrid subtraction Energy subtraction( Time-interval difference (TID) mode, Mask mode, Temporal subtraction, Hybrid subtraction, Energy subtraction ): Technique that produces subtracted images from progressive masks and the frames that follow.
Energy subtraction Mask mode Temporal subtraction Hybrid subtraction Time-interval difference (TID) mode( Energy subtraction, Mask mode, Temporal subtraction, Hybrid subtraction, Time-interval difference (TID) mode ): 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.

Conventional Digital( Conventional, Digital ) fluoroscopy: Images generated directly from x-ray
Digital Conventional( Digital, Conventional ) fluoroscopy: Images produced by pulse-progressive fluoroscopy

In conventional fluoroscopy:
- The input phosphor converts x-rays photons electrons( x-rays, photons, electrons ) into light
- Photocathode Image intensifier CCD( Photocathode, Image intensifier, CCD ) converts light into electrons
- Output phosphor converts electrons photons x-rays( electrons, photons, x-rays ) back into light

In digital fluoroscopy:
- x-rays are converted to light electrons photons energy( light, electrons, photons, energy ) by a(n) image intensifier input phosphor output phosphor( image intensifier, input phosphor, output phosphor )
- light x-ray electrons photons( light, x-ray, electrons, photons ) is converted to electrical signal by CCD