Wireless connections require all except which one of the following?
Physical cabling
In a bus network
Signals are broadcast in both directions to the entire network
Which term describes the technology that allows a film to be digitized and then analyzed by a computer to alert the radiologist of possible questionable areas on a radiograph?
CAD
Which of the following are common uses of images?
1. Backup
2. Legal Cases
3. Outside physicians
1, 2, and 3
Which of the following would be considered advantages of a client/server-based system?
1. Any image can be seen anywhere without interventions.
2. Even if the archive goes down, images can still be see at all workstations.
3. Only one person can open a study with the intent to read it, and others will be told that the study is being read by someone else.
1 and 3
The place where records or documents are preserved for historic purposes is the
archive
Which device scans an analog film and produces numeric signals based on the appearance of the film?
Film digitizer
A network switch
sends data only to data-directed devices
Reading images on a computer screen is known as _____ reporting.
soft copy
The almost universally accepted standard for exchanging medical images is known as:
DICOM
All of the following are common SCSI devices except the
modem
A computer network that spans a large area such as a city, state, nation, or continent is known as a
WAN
In which network type is each computer on the network considered equal?
Peer to peer
Which of the following are considered PACS architecture?
1. Distributed system
2. Client/server-based system
3. Web-based system
1, 2, and 3
Which component of the archive consists of the physical storage devices?
Image storer
archive server?
Which of the following describes a thin-client computer?
Any computer that needs a server for task completion
How many bits make up four bytes?
32
Which advanced function is used most often in computed tomography to visualize contrast medium-filled vessels separate from the surrounding tissues?
MIP
DICOM was considered better than previous exchange mechanisms for all but which one of the following?
It did not require a conformance system
A square table of numbers that represents the intensity to be displayed on the monitor is a
matrix
A network that uses a central computer that sends the entire original resource to the client is known as a
server-based network
The information storage capacity of a DVD is _____ times more than that of a CD.
7
The network layer breaks up data and
decides which network path to take
Which function represents the range of gray values that are being viewed on the monitor?
Window
Ethernet protocol performs at the _____ layer
physical
In which RAID level are all data striped across all connected disks and error correction (parity) is contained on one disk?
RAID 3
What factors might be used when determining the best type of monitor for each workstation?
1. Resolution
2. Size
3. Monitor orientation
1, 2, and 3
Which term best describes a basic picture element on a display?
Pixel
In which RAID level are all data mirrored on two disks?
RAID 1
The microprocessor uses the BIOS during
boot-up process
Dry imager film is more sensitive to what in comparison to conventional film?
1. Heat
2. Cold
3. Humidity
1 and 3
If the number of _____ increases on a monitor, resolution _____
pixels; improves
A PACS consits of:
1. image acquisition
2. display workstations
3. archive servers
1, 2, and 3
Most network interface cards plug directly into the
motherboard
A connection device that can bring two or more networks together that speak the same language is known as a
bridge
All of the following use buses that are found within the computer except the
1. SCSI
2. AGP
3. USB
4. PCI
All of them (known them)
UNIX was developed by
Bell Laboratories
Which is the most interactive part of a PACS?
Display workstation
Two or more objects sharing resources and information or computers, terminals, and servers interconnected by communication channels is a definition of a
all of the above
The part of DICOM that ensures that modalities can communicate with existing image-viewing devices is
conformance statement
The fastest and most versatile port is the
SCSI port
Which one of the following is not considered a type of computer found on a network?
Thick client
What term is used to describe the reading of images outside of the hospital walls, generally at home or in remote locations?
Teleradiology
The transport layer of the OSI model:
makes sure data packets are sequenced
A universally accepted standard for exchanging medical imaging via a networked set of display workstations, archive, and imaging modalities is
DICOM
Response rate refers to the amount of time it takes the crystal to go
from an off state to on and vice versa
Which term is used to describe the process of transferring images to remote locations for reading by a radiologist?
Teleradiology
The standard that oversees most computerized clinical and administrative data is known as
HL-7
The most common connection medium for a LAN is
twisted pair
Which advanced function uses a histogram-type graph to differentiate various structures using different colors that represent each of the intensities in the image?
VRT
Which of the following are types of tape archive solutions?
1. DVD
2. DLT
3. AIT
2 and 3
The system that contains patient information, billing records, and inpatient orders is the
HIS
What do dry imagers use to develop the image on the film?
Heat
Lossy compression is used to
shrink file size
Any computer that a health care worker uses to view a digital image is a(n)
display workstation
All but _____ are commonly used mice.
Optomechanical
Optical
Mechanical
Cable consisting of a center connecting wire surrounded by insulation and a grounded shield of braided wire is called
coaxial
RAM is an acronym for _____ memory
random access
All of the following are major operating systems except:
Hologic
Which of the following would be considered advantages of a distributed system?
1. Any images can be seen anywhere without any interventions.
2. Even if the archive goes down, images can still be seen at all workstations.
3. The system is less dependent on the network for its speed.
2 and 3
Which function allows the user to move through a series of images frame by frame?
Cine
The system clock uses a:
vibrating quartz crystal
A server is
a computer that manages resources for other computers, servers, and networked devices.
A level, layer, or division of something is known as a
tier
The topology on which the internet is based is the
mesh
Which of the following would be considered categories for display workstations?
1. Primary reading
2. Technologist QC
3. Archive server
1 and 2
A device that provides the interface between the computer and network is known as a
network interface card
In which system architecture do the acquistion modalities send their images directly to a designated workstation?
Distributed workstation
RIS is specific to
radiology
The number of pixels contained on a display is known as
resolution
Which of the following are common uses of a film digitizer?
1. Compare outside films
2. Computed aided diagnosis
3. Remote viewing of analog images
1, 2, and 3
The refresh rate controls the
flicker
What metal is contained behind the outer layers of a DVD?
Gold
Which of the following would be considered disadvantages of a distributed system?
1. There is a heavy reliance that the images are being sent to the correct locations.
2. The archive is considered a single point of failure
3. Each workstation has a different worklist
1 and 3
What term is used to describe a database that is running two identical databases simultaneously?
Mirrored
Most modern keyboards connect to the back of the box using a _____ connection
PS/2
Which advanced function allows the user to put multiple images together into one single image, such as in a scoliosis series?
Stitching
Which of the following would be considered categories of workstation functions?
1. Navigation
2. Image manipulation and enhancement
3. Image management
1, 2, and 3
Which function determines how images are displayed on the monitor?
Hanging protocols
Real-time operating systems are commonly found on
modern x-ray equipment
The acronym PACS stands for ______ system
picture archive and communication
Which of the following are types of optical disks?
1. MOD
2.DLT
3. UDO
1 and 3
A film imager is also known as a film
printer
Film digitizers use which of the following techologies to acquire digital images?
1. TFT
2. CCD
3. Laser
2 and 3
Which workstation is used to review images after acquisition but before being sent off for reporting?
Technologist QC
A category of disk drives that uses two or more drives in combination for fault tolerance and performance is
RAID
Which film digitizer uses a helium neon laser to convert the analog film image into a digital image?
1. Laser
2. CCD
3. TFT
1 only
A parallel port sends _____ bit(s) of data through a connection compared with a serial port, which can send _____ bit(s) of data
8:1
Which of the following measurements are commonly found on a PACS workstation?
1. ROI
2. Distance
3. Angle
1, 2, and 3
Which function can be used to orient the image in the anatomic hanging position?
Flip and rotate
The system that holds a specific patient's lab results, radiology reports, and physician notes is the:
EMR
A database that keeps track of how the images are related and provides search capability is a
image manager
A handheld personal organizer is an example of a _____ operating system.
single-user, single-task
All of the following are used with a serial port except a:
mouse
modem
keyboard
printer
All mice connections are _____ type
serial
In which RAID level are all data and error corrections (parity) striped across all connected disks?
RAID 5
Which of the following would be considered disadvantages of a client/server-based system?
1. The archive is considered a single point of failure
2. The system depends on the network
3. Each workstation has a different worklist
1 and 2
"Write once, read many" is represented by which of the following identifiers?
R
Which advanced workstation function can reconstruct images into another plane?
MPR
Any supplemental device connected to a PACS that performs a specific function is known as a
peripheral