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Digital Imaging Test 3

front 1

Wireless connections require all except which one of the following?

back 1

Physical cabling

front 2

In a bus network

back 2

Signals are broadcast in both directions to the entire network

front 3

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?

back 3

CAD

front 4

Which of the following are common uses of images?

1. Backup

2. Legal Cases

3. Outside physicians

back 4

1, 2, and 3

front 5

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.

back 5

1 and 3

front 6

The place where records or documents are preserved for historic purposes is the

back 6

archive

front 7

Which device scans an analog film and produces numeric signals based on the appearance of the film?

back 7

Film digitizer

front 8

A network switch

back 8

sends data only to data-directed devices

front 9

Reading images on a computer screen is known as _____ reporting.

back 9

soft copy

front 10

The almost universally accepted standard for exchanging medical images is known as:

back 10

DICOM

front 11

All of the following are common SCSI devices except the

back 11

modem

front 12

A computer network that spans a large area such as a city, state, nation, or continent is known as a

back 12

WAN

front 13

In which network type is each computer on the network considered equal?

back 13

Peer to peer

front 14

Which of the following are considered PACS architecture?

1. Distributed system

2. Client/server-based system

3. Web-based system

back 14

1, 2, and 3

front 15

Which component of the archive consists of the physical storage devices?

back 15

Image storer

archive server?

front 16

Which of the following describes a thin-client computer?

back 16

Any computer that needs a server for task completion

front 17

How many bits make up four bytes?

back 17

32

front 18

Which advanced function is used most often in computed tomography to visualize contrast medium-filled vessels separate from the surrounding tissues?

back 18

MIP

front 19

DICOM was considered better than previous exchange mechanisms for all but which one of the following?

back 19

It did not require a conformance system

front 20

A square table of numbers that represents the intensity to be displayed on the monitor is a

back 20

matrix

front 21

A network that uses a central computer that sends the entire original resource to the client is known as a

back 21

server-based network

front 22

The information storage capacity of a DVD is _____ times more than that of a CD.

back 22

7

front 23

The network layer breaks up data and

back 23

decides which network path to take

front 24

Which function represents the range of gray values that are being viewed on the monitor?

back 24

Window

front 25

Ethernet protocol performs at the _____ layer

back 25

physical

front 26

In which RAID level are all data striped across all connected disks and error correction (parity) is contained on one disk?

back 26

RAID 3

front 27

What factors might be used when determining the best type of monitor for each workstation?

1. Resolution

2. Size

3. Monitor orientation

back 27

1, 2, and 3

front 28

Which term best describes a basic picture element on a display?

back 28

Pixel

front 29

In which RAID level are all data mirrored on two disks?

back 29

RAID 1

front 30

The microprocessor uses the BIOS during

back 30

boot-up process

front 31

Dry imager film is more sensitive to what in comparison to conventional film?

1. Heat

2. Cold

3. Humidity

back 31

1 and 3

front 32

If the number of _____ increases on a monitor, resolution _____

back 32

pixels; improves

front 33

A PACS consits of:

1. image acquisition

2. display workstations

3. archive servers

back 33

1, 2, and 3

front 34

Most network interface cards plug directly into the

back 34

motherboard

front 35

A connection device that can bring two or more networks together that speak the same language is known as a

back 35

bridge

front 36

All of the following use buses that are found within the computer except the

1. SCSI

2. AGP

3. USB

4. PCI

back 36

All of them (known them)

front 37

UNIX was developed by

back 37

Bell Laboratories

front 38

Which is the most interactive part of a PACS?

back 38

Display workstation

front 39

Two or more objects sharing resources and information or computers, terminals, and servers interconnected by communication channels is a definition of a

back 39

all of the above

front 40

The part of DICOM that ensures that modalities can communicate with existing image-viewing devices is

back 40

conformance statement

front 41

The fastest and most versatile port is the

back 41

SCSI port

front 42

Which one of the following is not considered a type of computer found on a network?

back 42

Thick client

front 43

What term is used to describe the reading of images outside of the hospital walls, generally at home or in remote locations?

back 43

Teleradiology

front 44

The transport layer of the OSI model:

back 44

makes sure data packets are sequenced

front 45

A universally accepted standard for exchanging medical imaging via a networked set of display workstations, archive, and imaging modalities is

back 45

DICOM

front 46

Response rate refers to the amount of time it takes the crystal to go

back 46

from an off state to on and vice versa

front 47

Which term is used to describe the process of transferring images to remote locations for reading by a radiologist?

back 47

Teleradiology

front 48

The standard that oversees most computerized clinical and administrative data is known as

back 48

HL-7

front 49

The most common connection medium for a LAN is

back 49

twisted pair

front 50

Which advanced function uses a histogram-type graph to differentiate various structures using different colors that represent each of the intensities in the image?

back 50

VRT

front 51

Which of the following are types of tape archive solutions?

1. DVD

2. DLT

3. AIT

back 51

2 and 3

front 52

The system that contains patient information, billing records, and inpatient orders is the

back 52

HIS

front 53

What do dry imagers use to develop the image on the film?

back 53

Heat

front 54

Lossy compression is used to

back 54

shrink file size

front 55

Any computer that a health care worker uses to view a digital image is a(n)

back 55

display workstation

front 56

All but _____ are commonly used mice.

back 56

Optomechanical

Optical

Mechanical

front 57

Cable consisting of a center connecting wire surrounded by insulation and a grounded shield of braided wire is called

back 57

coaxial

front 58

RAM is an acronym for _____ memory

back 58

random access

front 59

All of the following are major operating systems except:

back 59

Hologic

front 60

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.

back 60

2 and 3

front 61

Which function allows the user to move through a series of images frame by frame?

back 61

Cine

front 62

The system clock uses a:

back 62

vibrating quartz crystal

front 63

A server is

back 63

a computer that manages resources for other computers, servers, and networked devices.

front 64

A level, layer, or division of something is known as a

back 64

tier

front 65

The topology on which the internet is based is the

back 65

mesh

front 66

Which of the following would be considered categories for display workstations?

1. Primary reading

2. Technologist QC

3. Archive server

back 66

1 and 2

front 67

A device that provides the interface between the computer and network is known as a

back 67

network interface card

front 68

In which system architecture do the acquistion modalities send their images directly to a designated workstation?

back 68

Distributed workstation

front 69

RIS is specific to

back 69

radiology

front 70

The number of pixels contained on a display is known as

back 70

resolution

front 71

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

back 71

1, 2, and 3

front 72

The refresh rate controls the

back 72

flicker

front 73

What metal is contained behind the outer layers of a DVD?

back 73

Gold

front 74

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

back 74

1 and 3

front 75

What term is used to describe a database that is running two identical databases simultaneously?

back 75

Mirrored

front 76

Most modern keyboards connect to the back of the box using a _____ connection

back 76

PS/2

front 77

Which advanced function allows the user to put multiple images together into one single image, such as in a scoliosis series?

back 77

Stitching

front 78

Which of the following would be considered categories of workstation functions?

1. Navigation

2. Image manipulation and enhancement

3. Image management

back 78

1, 2, and 3

front 79

Which function determines how images are displayed on the monitor?

back 79

Hanging protocols

front 80

Real-time operating systems are commonly found on

back 80

modern x-ray equipment

front 81

The acronym PACS stands for ______ system

back 81

picture archive and communication

front 82

Which of the following are types of optical disks?

1. MOD

2.DLT

3. UDO

back 82

1 and 3

front 83

A film imager is also known as a film

back 83

printer

front 84

Film digitizers use which of the following techologies to acquire digital images?

1. TFT

2. CCD

3. Laser

back 84

2 and 3

front 85

Which workstation is used to review images after acquisition but before being sent off for reporting?

back 85

Technologist QC

front 86

A category of disk drives that uses two or more drives in combination for fault tolerance and performance is

back 86

RAID

front 87

Which film digitizer uses a helium neon laser to convert the analog film image into a digital image?

1. Laser

2. CCD

3. TFT

back 87

1 only

front 88

A parallel port sends _____ bit(s) of data through a connection compared with a serial port, which can send _____ bit(s) of data

back 88

8:1

front 89

Which of the following measurements are commonly found on a PACS workstation?

1. ROI

2. Distance

3. Angle

back 89

1, 2, and 3

front 90

Which function can be used to orient the image in the anatomic hanging position?

back 90

Flip and rotate

front 91

The system that holds a specific patient's lab results, radiology reports, and physician notes is the:

back 91

EMR

front 92

A database that keeps track of how the images are related and provides search capability is a

back 92

image manager

front 93

A handheld personal organizer is an example of a _____ operating system.

back 93

single-user, single-task

front 94

All of the following are used with a serial port except a:

mouse

modem

keyboard

back 94

printer

front 95

All mice connections are _____ type

back 95

serial

front 96

In which RAID level are all data and error corrections (parity) striped across all connected disks?

back 96

RAID 5

front 97

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

back 97

1 and 2

front 98

"Write once, read many" is represented by which of the following identifiers?

back 98

R

front 99

Which advanced workstation function can reconstruct images into another plane?

back 99

MPR

front 100

Any supplemental device connected to a PACS that performs a specific function is known as a

back 100

peripheral