63 notecards = 16 pages (4 cards per page)
The lateral coccyx image shown in Figure 4–4 was made using AEC but is overexposed. This is most likely a result of
What is the correct critique of the CR image shown in Figure 4–6?
The radiograph shown in Figure 4–14 is most likely the result of
The PA chest image shown in Figure 4–13 exhibits which of the
Which of the following artifacts is occasionally associated with the use of grids in digital imaging?
Which of the following pathologic conditions would require a decrease in exposure factors?
Grid cutoff due to off-centering would result in
A radiograph made with a parallel grid demonstrates decreased density on its lateral edges. This is most likely due to
Which of the following pathologic conditions probably will require a decrease in exposure factors?
Which type of error results in grid cutoff at the periphery of the radiographic image?
Electronic imaging terms used to indicate the intensity of radiation reaching the IR include
A patient is being positioned for a particular radiographic examination. The x-ray tube, image recorder, and grid are properly aligned, but the body part is angled. Which of the following will result?
Focal-spot blur is greatest
Both radiographic images seen in the figure below were made of the
same subject using identical exposure factors. Which of the following
statements correctly describes these images?
The area of blurriness seen in the upper part of the radiograph shown in Figure 4–20 is most likely due to
Although the stated focal-spot size is measured directly under the actual focal spot, focal-spot size actually varies along the length of the x-ray beam. At which portion of the x-ray beam is the effective focal spot the largest?
The mottled appearance of the radiograph shown in Figure 4–26 is most likely representative of
The effect that differential absorption has on radiographic contrast of a high-subject-contrast part can be minimized by
The radiograph shown in Figure 6–10 exhibits a loss of radiographic density as a result of
What are the effects of scattered radiation on a radiographic image?
Using an AEC system, how will the mAs be adjusted as the film–screen
speed combination is decreased?
Which of the following errors is illustrated in Figure 4–15?
Which of the following factors influence(s) the production of scattered radiation?
Which of the following function(s) to reduce the amount of scattered radiation reaching the IR?
If the radiographer is unable to achieve a short OID because of the structure of the body part or patient condition, which of the following adjustments can be made to minimize magnification distortion?
Which of the following statements is (are) true with respect to the radiograph shown in Figure 4–29?
Which of the following can be used to determine the sensitivity of a particular film emulsion?
Misalignment of the tube–part–IR relationship results in
Which of the following can impact the visibility of the anode heel effect?
If the quantity of black metallic silver on a particular x-ray film
is such that it allows 1% of the illuminator light to pass through the
film, that film has a density of
SID affects recorded detail in which of the following ways?
Which of the following statements is (are) true regarding the artifact seen in the erect PA projection of the chest shown in Figure 4–31?
Acceptable method(s) of minimizing motion unsharpness is (are)
The PA chest image shown in Figure 4–18 demonstrates
Radiographic recorded detail is inversely related to
Causes of grid cutoff, when using focused reciprocating grids, include the following?
The tiny minus-density artifacts seen in the more proximal portion of the CR image of the radius shown in Figure 4–9 are representative of
The radiograph shown in Figure 4–23 exhibits an artifact caused by
For which of the following examinations can the anode heel effect be an important consideration?
A 15% decrease in kilovoltage accompanied by a 50% increase in milliampere-seconds will result in a(n)
Which of the following statements is (are) most likely true regarding the figure below?
All the following statements regarding beam restriction are true except
Which of the following statements is (are) true regarding Figure 4–28?
Which of the radiographs shown in Figure 4–5 most likely required the greater exposure?
Which of the following conditions require(s) a decrease in technical factors?
The continued emission of light by a phosphor after the activating source has ceased is termed
What is likely to result from using single-emulsion film in an IR that has two intensifying screens?
Which of the following will have an effect on radiographic contrast?
The radiograph shown in Figure 4–12 demonstrates an example of
Two film–screen images of the skull are shown in Figure 4–10. Which of the following best describes their different appearance?
The radiograph shown in Figure 4–21 illustrates incorrect use of
In an AP abdomen taken at 105-cm SID during an IV urography series,
one renal shadow measures 9 cm in width. If the OID is 18 cm, what is
the actual width of the kidney?
Which of the following would be useful for an examination of a patient suffering from Parkinson disease?
In a posteroanterior (PA) projection of the chest being used for cardiac evaluation, the heart measures 14.7 cm between its widest points. If the magnification factor is known to be 1.2, what is the actual diameter of the heart?
Foreshortening can be caused by
A focal-spot size of 0.3 mm or smaller is essential for which of the following procedures?
If a lateral projection of the chest is being performed on an asthenic patient and the outer photocells are selected, what is likely to be the outcome?
What is the correct critique of the CR image shown in Figure 4–17?
What pixel size has a 512 x 512 matrix with a 20-cm field of view
If a radiograph exhibits insufficient density, this might be attributed to
What is the correct critique of the CR image shown in Figure 4–3?
In general, as the intensification factor increases,
Foreshortening of an anatomic structure means that