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: scanning the PSP's bar code, the software of the plate-reading device associates what?Answer: The patient's information with a specific . Question: Scanning the bar code is extremely important to ensure that the __________ is linked to the correct __________ and tells the computer software what type of __________ ________ to use for an image of a particular __________ structure.Answer: ; Patient; Processing codes; anatomical Question: The _____-_________ __________ is an extremely important part of _________-_________ digital radiography.Answer: Bar-Code sticker; -Based Question: The code on a PSP plate associates what with what?Answer: An patient and a specific exam Question: Which device allows for scanning precision compared to a mechanical arm?Answer: A polygonal mirror and point scanner Question: In a PSP plate reader, the _________ _________ collects the light and directs it into a device called a _____________ _______.Answer: Guide; Photomultiplier Tube Question: The photomultiplier tube of a PSP plate reader converts the light into an __________ __________ which is then ___________ by the _________.Answer: Signal; Digitized; ADC Question: When a PSP plate is ready for image extraction a _______ ______ strikes the plate and interacts with the _________ in the __________ ________ releasing the _________ trapped there in the form of _________. This energy trapped is the _______ ______.Answer: laser beam; ; Phosphor layer; Energy; Light; Latent Image Question: As the energy in the phosphor layer of a PSP plate is released as light, a ________ _________ collects the _______ photons and sends them to the ___________ ______ which and then the _______ where the electronic signal is converted to a _________ _______.Answer: Light guide; Light; Photomultiplier tube; ADC; Signal Question: Any remaining energy left on a PSP plate after digitizing the light photons is removed during the ________ process when exposing the plate to ______ ______ ______ removes the remaining __________.Answer: Erasure; Bright White Light; Question: When using a Flat Receptor, the technologist doesn't touch what?Answer: Plate Reader or image detector (what the hell is an detector"?) Question: Each DEL in a Flat Panel Detector is a _________.Answer: Question: The Detector Element (DEL) in a Flat Panel Detector collects ________ that are extracted from the ___________ ________ and are converted into a ____________ _______ by an _______. This is the process that creates the image that is displayed on the monitorAnswer: Electrons; Assembly; Digital Value; ADC Question: ________ size controls the recorded detail or spatial resolution for Flat Panel Detectors and cannot be changed by the Technologist.Answer: DEL Question: CCD's and CMOS both need a __________ to convert __________ photons into __________.Answer: Scintillator; X-ray into light Question: When ________ strikes the CCD, __________ are released by the CCD _________ in proportion to the ___________ striking it.Answer: Light; ; Silicon; Light Question: With CCD's, when the electrons are released in proportion to the light striking it, __________ of charged ___________ are moved one row at a time by __________ the ___________ of adjacent _________.Answer: Packets of charged are moved one row at a time by varying the voltage of adjacent rows. Question: As the computer analyzes the image data that the ADC extracts from the PSP plate, a key step for the PSP receptor is recognizing _____________ ________ _________.Answer: Exposure Field Question: A PSP plate reader scans the ___________plate and ________ the exposed and unexposed areas?Answer: plate; Both Question: What can happen if the PSP plate reader does not exposure or collimation border?Answer: The data analysis will include all the information on the plate and will in a poor image. Question: Histograms graphically represent a collection of ___________ values extracted from the __________.Answer: Exposure; Question: The X axis of a histogram is the __________ line representing _____________ ___________.Answer: Horizontal; Receptor Question: The Y axis of a histogram is the ___________ line representing the _________ of _____________ per _____________.Answer: ; Number of pixels per exposure. Question: A Type 3 Histogram is unique because it takes into account a significant ___________ object such as a ___________ hip or stomach full of __________.Answer: Attenuating; ; Barium Question: With the Type 3 histogram, the attenuating object adds an additional ____________ to an otherwise normally distributed histogram.Answer: Question: A Neural Histogram compares the exposure from the with what?Answer: Two or more predefined histogram data Question: Rescaling the image pixel values to display properly doesn't prevent overexposure of the ___________.Answer: Question: Due to Automatic rescaling, the technologist has no visual cue of __________________.Answer: Question: Most PSP systems provide an EI that _____________ can use to determine the approximate level of __________ to a __________.Answer: Technologists; Exposure to a Question: What is used to an EI value?Answer: A histogram analysis of the distribution of radiation . Question: An EI represents an approximation of the dose received by the _____________.Answer: Question: Fuji and Konica call their EI's an _____ _______, which represents a ___________ ___________.Answer: S ; Sensitivity Number Question: Philips uses ______ for their exposure indicator which stands for ___________ __________.Answer: EI; Index Question: Fuji, Konica and Philips all use values for their EI's that are __________ ___________ to the exposure received.Answer: proportional Question: With Fuji, and Phillips the higher the exposure received would do what with their EI's and what is the EI used by each?Answer: Higher exposures = Lower EI numbers; Fuji and Konica uses the term S for sensitivity number; Phillips uses EI for Exposure Index Question: What does Agfa use for their indicators?Answer: lgM = logarithm of the Histogram Question: For Agfa, as the increases what happens to their exposure indicators?Answer: lgM increases with increasing values Question: Canon uses an exposure indicator known as _______ and the value is ________ __________ to the exposure value.Answer: REX; proportional Question: The Siemens Flat Panel Detector uses an Exposure indicator value of _______.Answer: Question: If a PSP plate is processed with the anatomical menu what can happen?Answer: The image may be processed with an exposure indicator (EI) value and could display an inaccurate brightness and contrast. Question: Optimal EI ranges for PSP systems are best set by the _____________ who can evaluate the level of acceptable __________ which is very similar to the way images are evaluated in a __________ environment.Answer: ; Noise; Analog Question: A device that may be linked directly to the x-ray unit that measures the actual patient entrance skin dose with accurately calibrated equipment is a ______ ______ _________.Answer: Dose Area Meter (DAP) Question: The DAP meter is useful in determining _________ ________ dose but does not indicate the amount of ___________ received by the ___________ ___________.Answer: Skin Dose; Exposure; Image Receptor. Question: Currently, there are _______ standards established for using a DAP meterAnswer: Question: Film digitizers can contribute additional _____________ to digitized images if the digitizer isn't ____________ __________ or when there is ___________ or ________ on the film.Answer: Artifacts; maintained; Dust or dirt Question: When an excessively dusty or dirty film is digitized the particles deposited into the digitizer will _________ the image along with all ____________ ___________ fed into the equipment.Answer: Degrade; Subsequent Question: When an image is acquired that has metal such as a prosthesis the _________ will be _____________ and indicate that the image was ____________ and will not display the proper _________ and __________.Answer: EI; ; Underexposed; Contrast and Brightness Question: A Histogram consists of a range of data values from low to high __________, depending on the ____________ and ____________ factors.Answer: Exposures; Technique and Factors Question: A PSP system will scan the __________ plate while a Flat-Panel receptor only analyzes the ___________ area inside the _____________ ___________.Answer: ; Exposed; Collimated Border |
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