Which of the following is the most significant source of artifact in medical
images? - Answer Subject motion
Which of the following imaging modalities use ionizing radiation as its source? -
Answer Computed Tomography
Which of the following modality is most affected by the skill of the operator...
The core hardware components of a digital computer include everything except -
Answer Operating system
Volatile memory is distinguished from non-volatile memory by the - Answer
Inability of volatile memory to retain data with power loss
Which is not true about storage? - Answer Near-line storage requires human
intervention
Which is the best statement regarding the motherboard data bus? - Answer It
interconnects the components on the motherboard
What is the fundamental distinction between software and hardware? - Answer
Hardware is a physical entity
The purpose of the operating system (OS) is - Answer To manage memory
allocations and To copy files to disk and To manage the user interface and To
manage computer resources
Computer drivers are - Answer Small programs that provide a bridge or
interface between hardware and software
Low-level programming languages are (best answer possible) - Answer Are used
primarily by the CPU
The most complex network switch is the - Answer Network router
Which is true of thin-client applications? - Answer They require a web browser to
,run
The primary functions of PACS include image transmission, display, and
____________? - Answer Archiving
The typical radiology technologist is most likely to interact with which of the
following systems throughout their workday? - Answer RIS radiology information
system
Which component of the PACS typically communicates with both the HL7 and
DICOM protocols - Answer PACS Broker
The primary data protocol for transmitting medical images between modalities is
- Answer DICOM
Who is the most likely person to deal with managing the day-to-day operations of
the PACS? - Answer PACS administrator
A diagnostic workstation used by a radiologist generally offers what feature(s)
over a ''standard'' PC used for clinical review of images:
, - Answer Higher quality and higher brightness monitors, Faster network
connection back to the PACS core and Presence of more advanced image
manipulation tools
Integration of clinical information systems and PACS may result in - Answer An
increase in accurate relevant clinical information available to radiologists and
Faster turnaround times of results to clinicians and Richer information by the
concurrent delivery of images and their associated
report
Which of the following enhancements, if added to a PACS, would enable an
attending radiologist to check the work of a resident? - Answer Over-reading
The image matrix size of a computed tomography image is? - Answer 512 _ 512 _
12 bits
Which one of the following modalities uses no ionizing radiation from interactions
with the body to generate the resultant image? - Answer Magnetic resonance
Of the following, which modality has the largest data size for a single image? -
Answer Mammography with 24 _ 30 cm FOV, 50 mm detector element
A radiographic image has areas of saturation and no anatomical information,
but is acquired using an appropriate technique (kV and mAs). This outcome is
likely due to which one of the following? - Answer histogram scaling error
Which procedure is used to transfer patient demographic information from
the RIS to the image acquisition device? - Answer Portable data for imaging (PDI)
Which image acquisition technique uses annihilation radiation to create
tomography images? - Answer PET
The largest drawback of radiography compared to computed tomography
is ______. - Answer anatomical superimposition
Which of the following is the most important environmental patient safety
The window width and window level setting most appropriate for
viewing a CT image when bones are being evaluated (e.g., wide contrast
latitude) is closest to which setting? (WW is window width, WL is window level). -
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