Abbreviations and Terminology
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each of the black spaces below before clicking
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| show | Analog to Digital Converter
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| CPU | show 🗑
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| show | Computed Radiography
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| DICOM | show 🗑
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| show | Direct Radiography Direct Digital Radiography
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| show | Imaging Plate
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| PACS | show 🗑
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| show | Photomultiplier Tube
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| ROM | show 🗑
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| RAM | show 🗑
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| RF | show 🗑
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| show | Health Level 7 - standard protocol used for medical data systems
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| EMR | show 🗑
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| show | Charge Coupled Device
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| PRIEF | show 🗑
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| show | Exposure Data Recognition
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| show | American College of Radiology
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| bit | show 🗑
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| show | system of controls that connects various components of computer system
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| byte | show 🗑
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| show | the shades of gray that can be represented
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| show | increases in contrast due to high-pass filtering; also known as sharpening
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| show | the range of exposures that will produce densities within the diagnostic range; the range between the minimum and maximum exposures that will produce and acceptable range of densities for diagnostic purposes
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| matrix | show 🗑
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| noise | show 🗑
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| pixel | show 🗑
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| program data | show 🗑
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| resolution | show 🗑
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| show | graininess caused by a lack of sufficient incoming data to process an image also known as quantum noise
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| show | three-dimensional volume correlating to each pixel
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| partitioned pattern recognition | show 🗑
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| exposure field recognition | show 🗑
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| histogram | show 🗑
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| show | reference histogram of the luminance values cerived during image acquisition
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| image stitching | show 🗑
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| direct aquisition | show 🗑
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| show | 2 step process in which x-ray photons are converted to light and then the light photons are converted to an electrical signal
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| show | clinically irrelevant data is not included in image display
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| show | descriptive term used for the plates used in both direct and indirect digital systems
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| show | detector that consists of a photo-conductor which holds a charge on its surface that can be read out by a thin-film transistor
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| HIS | show 🗑
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| RIS | show 🗑
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| show | redundant array of independent disks
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| show | The Joint Photographic Experts Group
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| DAS | show 🗑
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| show | computer image
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| hard copy | show 🗑
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| jukebox | show 🗑
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| compression | show 🗑
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| lossless | show 🗑
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| show | There will be loss of image information that can never be completely reversed.
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| show | able to store and retrive digital images multiple ways
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| show | able to move images back and forth without interuption
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| show | used to blacken out the white collimation borders in a digital image, effectively eliminating glare
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| cropping | show 🗑
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| show | when sampling a signal such as the conversion from an analog to a digital image, the sampling freguency must be greater than twice the bandwidth of the input signal so that the reconstruction of the original image will be nearly perfect
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| bandwidth | show 🗑
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| show | amplifies or deletes all but the selected range or band of frequencies
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| show | a radiographic relationship between the amount of exposure and the resultant density on the image; also known as the Hurter and Driffield curve (H&D curve); also called the D log E curve
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| show | detective quantum efficiency ; measurement of how efficiently a system converts x-ray input signal into a useful output image
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| EI | show 🗑
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| show | sensitivity; how you know the exposure factors were set properly
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