In each blank, try to type in the
word that is missing. If you've
typed in the correct word, the
blank will turn green.
If your not sure what answer should be entered, press the space bar and the next missing letter will be displayed. When you are all done, you should look back over all your answers and review the ones in red. These ones in red are the ones which you needed help on. Question: one of the two types of digital systems that is cassette based, the body part is obtained using storage phosphor in the cassetteAnswer: radiography Question: the process of acquiring images of the body using x-rays displaying them digitally, viewing and them on a computer complete fileAnswer: Digital Question: one of the two of digital imaging systems; is cassetteless. The phosphor is bonded to a flat panel detector built into the x-ray table or chest boardAnswer: Digital (DR) Question: detectors convert the x-ray energy directly to an electric signal through an amorphous detectorAnswer: conversion Question: a two-step process in which the x-ray energy is first converted to light & then into electrical signal using a scintillatorAnswer: conversion Question: a device that glows when hit by the high-energy x-ray photons and often is made of cesium Answer: Scintillator Question: a phosphor used in radiography (CR)plates to absorb the x-ray energy and store it until it is processed by a special unit and laser lightAnswer: Photostimulable Question: an extensive networked group of computers, services and archives the Answer: Picture archival and system (PACS) Question: the adjusting of any image of a body part with the use of computer softwareAnswer: Post Question: image comprised of continuous shades of gray from to whiteAnswer: Question: relates the number of line pairs in a given length as cm or mm (lp/mm); data is sampled from an exposed detector in computed radiography/detector -size (del)Answer: frequency Question: an array of picture elements (pixels) that forms a matrix; each pixel is recorded Answer: Digital Question: the ability if an imaging system to resolve and render on the image a small high object; determined primarily by the number of pixels in an image & therefore the size of each pixelAnswer: Spatial resolution (digital) Question: the dimensions of the field of view (fov) with in body not the size of displayed imageAnswer: size (digital) Question: range of exposures over which a detector can acquire image data and display contrast comparable to film latitude; the number of gray shades that an imaging system can .Answer: Dynamic (digital receptors) Question: smallest exposure change (signal) difference that can be by a detector controlled by the dynamic range of the detector and quantizationAnswer: resolution (digital) Question: an of post processing to improve the film Answer: Windowing Question: a part of windowing that adjusts the brightness; it identifies the type of tissue to be in (soft tissue or bone)Answer: level Question: determines the gray scale rendition of that & therefore the image contrastAnswer: Window – (contrast) Question: measure of x-ray absorption efficiency; variation in which predicts their efficiency; absorption coefficient; Answer: DQE Quantum Efficiency |
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