Lmrt state review Questions and Correct Answers

Lmrt state review Questions and Correct Answers indicator number - ANSWER how much radiation was absorbed into the phosphors image stitching - ANSWER stitching together multiple images - useful for scoliosis studies of the spine, long bone studies or angiographic imaging of peripheral vasculature. - to view as a single image. image annotation - ANSWER allow the technologist to inset preset text or manual text on the image contrast resolution (digital) - ANSWER Ability to distinguish anatomic structures having similar subject contrast spatial resolution - ANSWER Refers to the amount of detail present in any image.Phosphor layer thickness and pixel size determines resolution in CR. pixel - ANSWER A single square within a matrix matrix - ANSWER a series of very small boxes that form a digital image direct conversion - ANSWER one step process in DR where flat panel detectors convert the x-ray energy directly to an electric signal using an amorphous selenium detector for immediate viewing charged coupled device - ANSWER component which light enters and is converted into video or electronic signal thin film transistor - ANSWER used to read charges collected during an exposure photodiode - ANSWER A silicon solid state device sensitive to light. Converts light into an electrical signal. scintillator - ANSWER Amorphous silicon requires a _____ such as cesium iodide or a rare earth intensifying screen composed of gadolinum and lanthanum with oxysulfides. This also converts x-rays to visible light. flat panel detector - ANSWER a type of digital detector employing amorphous silicon or selenium detector material, bonded with thin-film transistor technology for digital image creation and amplification density - ANSWER It is the degree of blackening of a radiograph resulting from radiation exposure and processing and one of the two photographic properties that comprise visibility of detail.