Digital Imaging Exam

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created 6 years ago by madhatter
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Chapters 8, 9, and 10
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1

A network switch

sends data only to data-directed services

2

The transports layer of the OSI model

makes sure data packets are sequenced

3

The most common connection medium for a LAN is

twisted pair

4

Which of the following is NOT one of the 20 parts of the DICOM standards?

data thesaurus

5

The network layer breaks up data and

decides which network path to take

6

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

DICOM

7

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

It did not require a conformance systems

8

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

HL-7

9

Which of the following describes a thin-client computer

Any computer that needs a server for task completion

10

The most fragile type of network connection is

fiber optic

11

Which term is used to describe when data are broken up into pieces and each disk receives a "piece" of the data?

Striping

12

The acronym for RAID is redundant

both a and c

13

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

1. Primary reading

2. Technologist QC

3. Archive server

1 and 2

14

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

Technologist QC

15

Which film digitizer uses fluorescent bulbs to aid in converting the analog film image into a digital image?

1. Laser

2. CCD

3. TFT

2 only

16

Which of the following are types of optical disks?

1. MOD

2. DLT

3. UDO

1 and 3

17

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

Stitching

18

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

display workstations

19

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

RAID

20

Which is the most interactive part of a PACS

Display workstations

21

The acronym PACS stands for _______ system.

picture archive and communication

22

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

Window

23

Which picture archival and commonication system (PACS) component interfaces with the radiology information system and hospital information system?

Image manager

24

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

DICOM

25

Which of the following information might be found in the DICOM header of an image

1. patient name

2. laboratory test results

3. ordering physician

1 and 3

26

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

RAID 5

27

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

28

Which part of the PACS houses all of the historic digitial image data along with the current digital data being generated by the modalities?

Archive

29

What term describes a company that provides outsourcing and management functions for pay-per-use charge?

Application service provider

30

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

both a and b