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MAMMOGRAPHY EXAM 3, MAMMOGRAPHY EXAM 3: CHAPTERS 11-16
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MAMMOGRAPHY EXAM 3, MAMMOGRAPHY EXAM 3: CHAPTERS 11-16
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MAMMOGRAPHY EXAM 3, MAMMOGRAPHY EXAM 3:CHAPTERS 11-16
FDA provides organized, thorough, and easy to understand document sin order to
comply with the MQSA regulations. These documents are on the FDA's Website and
are known as: - answer- Policy guidance help system
A measurement that can help determine how well an object is seen in relation to its
surrounding is: - answer- CNR
When is digital imaging introduced into the radiology department? When was digital
imaging introduced into the mammography department? - answer- Early 1980s; 2000
In September 2005, the results of _____ were released, changing the world of
mammography. - answer- ACRIN/DMIST
The interactive process of adjusting the contrast and brightness levels of a digital image
is known as: - answer- - windowing
- window/level
- adjusting window width and window center
(T/F) the standard compression device must remain perfectly parallel to the image
receptor during final compression of the breast. Only speciality compression devices are
allowed to tilt. - answer- True
(T/F) DBT has difficulty finding cancers in the glandular breast - answer- False
The magnification factor permitted under MQSA is: - answer- Between 1.4 and 2.0 X
Before a mammography machine is allowed to be used to image a patient, an initial
evaluation of the machine must be completed by the physicist. What is the name of this
acceptance testing? - answer- Mammography equipment evaluation
Use of the modality worklist (MWL) supplied by the facility's HIS/RIS is the preferred
method of data input at the AWS: - answer- To ensure the patient data are entered
consistently and correctly from one year to the next
The language of computers in the digital mammography department include: - answer- -
DICOM
- HIS/RIS/MIS
- Health level 7
CAD use by interpreting radiologists has been compared to computer use of: - answer-
spell checking
,Equipment selection is a trade-off between the following considerations. Which is the
most important?
- space
- image production
- electrical requirements
- ergonomics - answer- Image production
Under MQSA, an adverse event would include all of the following EXCEPT:
a. Poor-image quality
b. A QC test not charted before the first patient exam of the day
c. Mammography reports received more than 30 days after the date of the exam
d.Non-credentialed personnel involved in the production of mammography services -
answer- A QC test not charted before the first patient exam of the day
The thickness of each height plane in the DBT cine' movie is approximately ___ mm -
answer- 1
The mammography machine IRSD and compression devices are made in which of the
following two standard sizes? - answer- 18 cm x 24 cm and 24 cm x 30 cm
According to the BIRADS system, category ___ is highly suggestive of a malignancy -
answer- 5
DBT reduces the need for additional images by approximately ____________ % -
answer- 40%
Ghosting artifacts are the result of: - answer- Incomplete clearing of previous images
Facilities who lawfully offer mammography services and currently hold the MQSA
certificate reapply to the AB for renewal every ___ years. - answer- 3
We use the heel effect to our advantage in mammography. The heel effect is oriented: -
answer- Chest wall-to-nipple
During the 1970s, the focus in mammography was on: - answer- reducing the x-ray
dose
during the 1990s, the focus in mammography was on: - answer- Quality images, quality
control, and quality assurance
, Unlike analog film, digital detectors offer their best performance with harder beams. This
is responsible for the increasing popularity of rhodium and tungsten anodes. Use of
these metals results in: - answer- an enriched signal reaching the pixels
It is recommended that digital copies be stored in all of the following formats, except:
- off-site servers
- medical record hard copies
- PACS servers
- removable media (CD,DVD) - answer- Medical record hard copies
Which of the following is an example of a postprocessing tool available for use at the
radiologist's review station? - answer- - zoom
- pan
- invert
The repeat/reject analysis is performed to: - answer- - Identify inefficiencies and
increased costs to the facility
- Indicate technologist performance that may impact patient dose/ exposures
- Determine the number and the cause of repeated/ rejected mammograms
The signal-to-noise ratio (SNR) is a measurement of image quantity. A high signal/ low
noise image contains more information about the object that was x-rayed. SNR is
determined by: - answer- The number of x-ray photons absorbed by the digital detector
The visual checklist should be conducted: - answer- monthly
All of the following are considered advantages of FFDM, except:
- cost of the equipment
- improved contrast resolution
- fewer repeat images
- increased technologist efficiency - answer- cost of the equipment
Modulation transfer function (MTF) is a measurement of image quality. This evaluates
the overall system resolution. MTF is determined by: - answer- How well the system
transfers shapes
In FFDM, _____ may mimic a calcification - answer- a dead pixel
Compared to interpreting an analog exam, DBT requires ____ the amount of time -
answer- twice
Which of the following statements is false?
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