Digital Imaging Test 3

Helpfulness: +1
Set Details Share
created 5 years ago by madhatter
1,601 views
Chapter 7,8,9 and 10
updated 5 years ago by madhatter
show moreless
Page to share:
Embed this setcancel
COPY
code changes based on your size selection
Size:
X
Show:
1

Wireless connections require all except which one of the following?

Physical cabling

2

In a bus network

Signals are broadcast in both directions to the entire network

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?

CAD

4

Which of the following are common uses of images?

1. Backup

2. Legal Cases

3. Outside physicians

1, 2, and 3

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.

1 and 3

6

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

archive

7

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

Film digitizer

8

A network switch

sends data only to data-directed devices

9

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

soft copy

10

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

DICOM

11

All of the following are common SCSI devices except the

modem

12

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

WAN

13

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

Peer to peer

14

Which of the following are considered PACS architecture?

1. Distributed system

2. Client/server-based system

3. Web-based system

1, 2, and 3

15

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

Image storer

archive server?

16

Which of the following describes a thin-client computer?

Any computer that needs a server for task completion

17

How many bits make up four bytes?

32

18

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

MIP

19

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

It did not require a conformance system

20

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

matrix

21

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

server-based network

22

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

7

23

The network layer breaks up data and

decides which network path to take

24

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

Window

25

Ethernet protocol performs at the _____ layer

physical

26

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

RAID 3

27

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

28

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

Pixel

29

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

RAID 1

30

The microprocessor uses the BIOS during

boot-up process

31

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

1. Heat

2. Cold

3. Humidity

1 and 3

32

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

pixels; improves

33

A PACS consits of:

1. image acquisition

2. display workstations

3. archive servers

1, 2, and 3

34

Most network interface cards plug directly into the

motherboard

35

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

bridge

36

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)

37

UNIX was developed by

Bell Laboratories

38

Which is the most interactive part of a PACS?

Display workstation

39

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

40

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

conformance statement

41

The fastest and most versatile port is the

SCSI port

42

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

Thick client

43

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

Teleradiology

44

The transport layer of the OSI model:

makes sure data packets are sequenced

45

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

DICOM

46

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

from an off state to on and vice versa

47

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

Teleradiology

48

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

HL-7

49

The most common connection medium for a LAN is

twisted pair

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?

VRT

51

Which of the following are types of tape archive solutions?

1. DVD

2. DLT

3. AIT

2 and 3

52

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

HIS

53

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

Heat

54

Lossy compression is used to

shrink file size

55

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

display workstation

56

All but _____ are commonly used mice.

Optomechanical

Optical

Mechanical

57

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

coaxial

58

RAM is an acronym for _____ memory

random access

59

All of the following are major operating systems except:

Hologic

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.

2 and 3

61

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

Cine

62

The system clock uses a:

vibrating quartz crystal

63

A server is

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

64

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

tier

65

The topology on which the internet is based is the

mesh

66

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

1. Primary reading

2. Technologist QC

3. Archive server

1 and 2

67

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

network interface card

68

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

Distributed workstation

69

RIS is specific to

radiology

70

The number of pixels contained on a display is known as

resolution

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

1, 2, and 3

72

The refresh rate controls the

flicker

73

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

Gold

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

1 and 3

75

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

Mirrored

76

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

PS/2

77

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

Stitching

78

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

79

Which function determines how images are displayed on the monitor?

Hanging protocols

80

Real-time operating systems are commonly found on

modern x-ray equipment

81

The acronym PACS stands for ______ system

picture archive and communication

82

Which of the following are types of optical disks?

1. MOD

2.DLT

3. UDO

1 and 3

83

A film imager is also known as a film

printer

84

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

1. TFT

2. CCD

3. Laser

2 and 3

85

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

Technologist QC

86

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

RAID

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

1 only

88

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

89

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

1. ROI

2. Distance

3. Angle

1, 2, and 3

90

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

Flip and rotate

91

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

EMR

92

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

image manager

93

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

single-user, single-task

94

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

mouse

modem

keyboard

printer

95

All mice connections are _____ type

serial

96

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

RAID 5

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

1 and 2

98

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

R

99

Which advanced workstation function can reconstruct images into another plane?

MPR

100

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

peripheral