Module 10 Flashcards

1
Q

In digital mammography, indirect capture uses a ________, such as ________, to trap and store the image temporarily.

substrate; aluminum
secondary medium; phosphors
film-screen; single-emulsion
conductor; amorphous selenium

A

secondary medium; phosphors

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2
Q

Most computed radiography (CR) systems use detectors made of _________.

thin-film transistors
photomultiplier tubes
photostimulable storage phosphors (PSP)
amorphous selenium

A

photostimulable storage phosphors (PSP)

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3
Q

During the conversion process of a computed radiography imaging plate, _________ strike(s) the plate to energize the phosphor material.

x-rays
electrons
a magnetic field
a laser beam

A

a laser beam

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4
Q

A slot-scanning system works with a(n) ________ image receptor.

PSP plate
Charged-couple device
Amorphous silicon
Amorphous selenium

A

Charged-couple device

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5
Q

In direct capture digital mammography, x-ray energy interacts directly with ______ and is converted into an electrical charge.

amorphous selenium
aluminum
PSP phosphors
a photomultiplier tube

A

amorphous selenium

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6
Q

Pixels are involved in the detector’s ability to acquire images.

True
False

A

False

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7
Q

The benefits of digital mammography are most significant for patients with _______ breast tissue.

fatty
glandular
heterogeneous
dense

A

dense

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8
Q

All of the following are benefits of full-field digital mammography (FFDM) except ________.

wider latitude
reduced need for repeats
magnification views are not needed
quicker exam times

A

magnification views are not needed

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9
Q

CAD is used most often:

along with film-screen imaging
to increase cancer detection rates among physicians interpreting high volumes
during the transition from analog to digital imaging
only with mini-PACS for mammography

A

during the transition from analog to digital imaging

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10
Q

According to most manufacturers, monitor cleaning should occur ____________.

Daily
Weekly
Monthly
Quarterly

A

Daily

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11
Q

Which of the following statements is not true regarding system noise ratio tests?

signal-to-noise ratio and contrast-to-noise ratio tests are performed simultaneously
signal-to-noise and contrast-to-noise ratio tests use the same phantom
density measurements are taken in 1 area
the baseline contrast-to-noise is determined at equipment installation

A

density measurements are taken in 1 area

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