Test Bank For Digital Radiography and PACS, 4th Edition By Carter and Beth

Test Bank For Digital Radiography and PACS, 4th Edition By Carter and Beth
Chapter 01: Introduction to Digital Radiography and Picture Archiving and
Communication Systems
Carter: Digital Radiography and PACS, 4th Edition
MULTIPLE CHOICE
1. Film and intensifying screens are primarily used in
a. computed radiography (CR).
b. digital radiography (DR).
c. conventional radiography.
d. picture archival and communication systems.
ANS: C OBJ: Explain latent image formation for conventional radiography.
2. Intensifying screens
a. absorb light.
b. emit light.
c. absorb scatter.
d. emit positive electrons.
ANS: B OBJ: Explain latent image formation for conventional radiography.
3. Which modality was the first to use the principle of digital imaging?
a. Computed tomography (CT)
b. Magnetic resonance imaging (MRI)
c. Ultrasonography
d. Cardiac catheterization
ANS: A OBJ: Define the term digital imaging.
4. Who was the first to incorporate digital imaging with the CT scanner?
a. Paul Lauterbur
b. Godfrey Hounsfield
c. Sol Nudelman
d. M. Paul Capp
ANS: B OBJ: Define the term digital imaging.
5. Teleradiology, moving images via telephone lines to and from remote locations, was first
conceptualized by
a. Paul Lauterbur.
b. M. Paul Capp.
c. Albert Jutras.
d. Sol Nudelman.
ANS: C OBJ: Define the term digital imaging.
6. The invention of CT is heralded as
a. the advanced use of three-dimensional computation in medical imaging.
b. one of the greatest milestones in medical imaging.
c. the stepping stone for the development of MRI.
d. the first modality to use PACS.
ANS: B OBJ: Define the term digital imaging.
7. Early reconstruction of raw CT data took a few ______ to form a recognizable image.
a. minutes
b. hours
c. days
ANS: C OBJ: Define the term digital imaging.
8. The first commercial CT scanners could image the
a. abdomen only.
b. head only.
c. head and abdomen.
d. total body.
ANS: B OBJ: Define the term digital imaging.
9. In which decade was MRI first introduced?
a. 1950s
b. 1960s
c. 1970s
d. 1980s
ANS: D OBJ: Define the term digital imaging.
10. Which two modalities could easily be converted to digital imaging properties?
a. CT and ultrasonography
b. CT and MRI
c. Ultrasonography and nuclear medicine
d. Nuclear medicine and CT
ANS: C OBJ: Define the term digital imaging.
11. Early picture archival and communication systems were first developed
a. in Canada.
b. by the U.S. military.
c. by Albert Jutras.
d. by NASA.
ANS: B OBJ: Explain what a PACS is and how it is used.
12. Teleradiography incorporated ______ to produce radiographic images.
a. satellite feeds
b. cable lines
c. T1 cables
d. telephone lines
ANS: D OBJ: Explain what a PACS is and how it is used.
13. One of the early goals related to the development of PACS was to
a. reduce costs related to overstaffing.
b. allow radiologists to read stat films from a hospital while at home.
c. provide a means to move battlefield images to an established hospital.
d. eliminate the need for chemical processing.
ANS: C OBJ: Explain what a PACS is and how it is used.
14. Photostimulable phosphor (PSP) image capture acquires an image through
a. conventional film/screen processing using a digital scanner.
b. the heating of a thermoluminescent device.
c. an electrically charged cassette.
d. the use of a storage phosphor plate.
ANS: D
OBJ: Compare and contrast the latent image formation process for storage phosphor, flat panel
with TFT, and CCD digital imaging systems.
15. Storage phosphor plates are similar to
a. intensifying screens.
b. xeromammography cassettes.
c. flat panel detectors.
d. cardboard cassettes.
ANS: A
OBJ: Compare and contrast the latent image formation process for storage phosphor, flat panel
with TFT, and CCD digital imaging systems.
16. In a direct capture digital system, which of the following are needed to produce a
radiographic image?
a. X-ray absorber and an electrical signal
b. Intensifying screen and a TFT
c. Storage phosphor plate and a CCD
d. Storage phosphor plate and a TFT
ANS: A
OBJ: Compare and contrast the latent image formation process for storage phosphor, flat panel
with TFT, and CCD digital imaging systems.
17. The two elements needed to convert light signals into an electrical signal while using
indirect capture DR are TFT and
a. area-CCD
b. photoconductors.
c. phototransistors.
d. ADC
ANS: A
OBJ: Compare and contrast the latent image formation process for storage phosphor, flat panel
with TFT, and CCD digital imaging systems.
18. The x-ray absorber typically used in direct capture DR is a
a. photodiode.
b. phototransistor.
c. photoconductor.
d. photoelectron.

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