In each blank, try to type in the
word that is missing. If you've
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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: In mammography, selecting extremely low kVp Answer: increases contrast but patient dose Question: What target-filtration combination the best penetration for dense or thick breast?Answer: rhodium target with filtration Question: The material used for the exit port of the tube is necessary becauseAnswer: Regular glass would the emerging beam. Question: The of the x-ray beam from the cathode side of the tube is generally higher because Answer: The heel causes variation in the intensity of the x-ray beam. Question: The design of the lip of the compression paddle (both height and angle along the chest wall) affects all of the Answer: -prevents the posterior and axillary fat from the body of the breast
-allows uniform compression of the posterior breast tissue
-helps to increase structural strength of the compression paddle Question: The primary goal of is to Answer: allow uniform of structures within the breast. Question: AEC failure, resulting in an radiograph, can be caused byAnswer: improper placement of the dense breast tissue/size over the Question: Most AEC circuitry in modern mammographic has at least three detectors. Three or more detectors are recommended because Answer: Multiple detectors allow for maximum variations in size and tissue density. Question: The difference between the general radiography grid and the grid used in mammography is that the Answer: grids used in general have higher ratios Question: As the size of the x-ray decreases, to maintain a constant image density the exposure willAnswer: increase Question: The chest wall edge of the compression paddle should be just beyond the chest wall edge of the IR to Answer: avoid the chest wall edge of the paddle on the mammogram. Question: Which of the following affects spot size?Answer: angle of the Question: In mammography, the commonly used spot size for routine work is Answer: 0.3 Question: of the following characteristics are unique to mammography cassettes?Answer: generally have a single intensifying . Question: Two main disadvantages of extended processing Answer: processing artifact and increased film fog Question: In digital mammography, both the film and can be replaced by Answer: a detector and system Question: The greatest difference between technology and conventional mammography imaging is Answer: In digital technology, the final image can be Question: All of the following are characteristics of double film/screens combination. Which characteristic makes these systems undesirable in mammography use?Answer: The system has a lower spatial than the single emulsion systems. Question: Film fog is best on the characteristic curve asAnswer: the toe of the Question: The characteristic curve, obtained by plotting density values from a sensitometer, can be used to all of the following exvept:Answer: to compare the x-ray beam quality with films Question: The characteristic curve of two films is plotted.The curve of film A is positioned to the left of the of film B.Answer: -film A is than film B
-at any optical density, film A will require less exposure than film B Question: Which of the following mammographic quality tests is performed monthly?Answer: checklist Question: Adequate "air time" refers to theAnswer: elapsed time between film and exposure Question: Which of the quality control tests does not require a densitometer?Answer: cleanliness Question: The to pass the ACR Mammography Accreditation on conventional phantom imaging require a minimum of ___ masses.Answer: Question: In establishing processing quality control levels, the speed index is designated as the densityAnswer: to but not less than 1.20 Question: For the daily quality control testing, the base-plus-fog should remain withinAnswer: +0.03 of the levels Question: The -cleaning test should be carried out wheneverAnswer: a mammographer notices dust on the image Question: Before processing the sensitometric each day, the mammographer shouldAnswer: the developer temperature Question: The phantom image background optical density never beAnswer: less than 1.20 Question: In the darkroom fog test, the optical density difference between and unfogged areas of the film should not exceedAnswer: 0.05 Question: In viewing phantom image, which of the viewing conditions need not apply?Answer: using the same film batch Question: In the test for screen contact there were multiple of small areas (<1 cm in diameter) of poor contact. The corrective action is toAnswer: return the to clinical use
Question: One of the two reasons are used in the compression test is toAnswer: protect the cassette Question: For the repeat analysis to be meaningful, a patient volume of at least ___ is needed.Answer: Question: Daily processing control can involve all of the following Answer: using the to measure the densities on the strip Question: Proving that a darkroom fog is a result of safelight problems involves Answer: the test with the safelights off Question: The darkroom fog test is Answer: semiannually Question: Daily control is used to Answer: -determine the film -check the film contrast
-check the stability of the processor Question: If, after examining a phantom image, the number of visualized fibers of masses has changed , the next step is toAnswer: check the unit or the image processor Question: films areAnswer: films that exposure to the patient Question: If the patient volume at a mammography site is 200 per week, the repeat/reject analysis should be done everyAnswer: 3 Question: All the fluorescent tubes in the mammography view box be replaced at the same time becauseAnswer: Fluorescent tubes decrease in brightness with Question: In imaging the phantom, the factors used should be the same as those used clinically for a __-cm-thick breast of medium glandularity.Answer: 4.0-4.5 Question: Mammography facilities can receive fromAnswer: -the -an SAC state Question: An MQSA certificate is issued when a mammography facility has been accredited. This is valued forAnswer: 3 Question: If any of the checks fail, the first step is to Answer: correct or replace the Question: Digital can be viewed on a computer monitor or printed usingAnswer: dry technology Question: Hardcopy viewing of the imaging describes Answer: the that is sent for interpretation Question: The grid can vary in modern mammography units. A common grid ratio used is Answer: 4:1 |
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