Quiz 17/18 (Bush)

Question 1

The science of ______________ is the study of the response of the human eye to light.

Answer 1

photometry

Question 2

What is the basic photometric unit?

Answer 2

Lumen

Question 3

The cosine law is used to describe ___________________________.

Answer 3

luminous intensity of a digital display device

Question 4

The decreasing luminous intensity with increasing distance from the source of light follows _____________________.

Answer 4

the inverse square law

Question 5

A digital display monitor is best viewed ______________.

Answer 5

straight on

Question 6

Almost all digital images in medical imaging are viewed and interpreted on a __________________.

Answer 6

digital display device

Question 7

Almost all medical flat panel digital display devices are _______________.

Answer 7

monochrome liquid crystal displays (LCDs)

Question 8

Medical flat panel display devices are identified by the ___________________.

Answer 8

number of pixels

Question 9

The ambient light at a digital image workstation should be ______________.

Answer 9

near darkness

Question 10

Preprocessing the digital image is done _____________, and post-processing is done ______________.

Answer 10

automatically; manually

Question 11

Flatfielding is accomplished through automatic calibration images called _____________ and _______________.

Answer 11

offset images; gain images

Question 12

T or F: The purpose of image subtraction is to enhance contrast.

Answer 12

true

Question 13

T or F: Spatial resolution improves with the use of higher megapixel digital display devices.

Answer 13

true

Question 14

PACS stands for _______________________________________.

Answer 14

Picture Archiving and Communication Systems

Question 15

Which is not a part of PACS?

Answer 15

Electronic medical record

Question 16

Radiology Information Systems (RIS) is used for which of the following?

Answer 16

Schedules, protocol descriptors, and diagnostic conclusions

Question 17

The principal components of a PACS are the ________________.

Answer 17

image acquisition system, display system, network, and storage system

Question 18

Within a PACS network the secretarial workstation and the viewing workstation would both be called ________________.

Answer 18

clients

Question 19

The process of remote transmission and viewing of medical images is known as ________________.

Answer 19

teleradiology

Question 20

The national standard for image transmission in teleradiology is the ____________ format.

Answer 20

DICOM

Question 21

Text data and email are generated at a _____________________________ workstation in PACS.

Answer 21

Radiology Information System (RIS)

Question 22

Image file size is determined by ________ size and grayscale bit depth.

Answer 22

matrix

Question 23

The term network is used to describe the _____________.

Answer 23

manner many computers can be connected

Question 24

What does DICOM stand for?

Answer 24

Digital Imaging and Communications in Medicine

Question 25

Which medical information organization is working to make patient radiation dose ALARA?

Answer 25

ACR

Question 26

T or F: PACS implements and speeds image processing, viewing, interpretation, storage, and recall.

Answer 26

true

Question 27

T or F: Teleradiology allows for intercontinental image interpretation.

Answer 27

true

Question 28

T or F: The electronic medical record is incorporated into the Radiology Information System (RIS).

Answer 28

false

Question 29

T or F: The Current Procedural Terminology (CPT codes), developed by the American Medical Association (AMA), created codes for a specific clinical situation.

Answer 29

true

Question 30

Accession Numbers are specific numbers that are assigned to a patients exam they are attached to each ___________ in that exam which in turn attaches a ___________ to that specific patients exam after a radiologist has performed their dictated interpretation.

Answer 30

image, report