221 Week 1 Quiz Review

Question 1

Active element storage phosphor?

Answer 1

Barium fluoride

Question 2

The [blank] converts electric energy to electrical signal?

Answer 2

Photo-conductor

Question 3

Look Up table does what?

Answer 3

Gray scale image scale value

Question 4

Each square in a matrix is what

Answer 4

A pixel / picture element

Question 5

In reference to PSP image capture to release the latent image which device is scanned over

Answer 5

Focus laser

Question 6

Exposure latitude is to Cr as [blank] is to Dr

Answer 6

Dynamic range

Question 7

How dark or light an image is on a display monitor is what?

Answer 7

Brightness

Question 8

[Not true] statement (dealing with matrix and, f.o.v)

Answer 8

Changing matrix /f.o.v will not change size of pixel

Question 9

Another Name for film

Answer 9

Conventional

Question 10

Histogram displays the useful signal how?

Answer 10

Maximum and minimum

Question 11

High kyp [blank] the histogram

Answer 11

Narrows

Question 12

Cr(computed) requires image through what?

Answer 12

Use of phosphor plate

Question 13

All a following form PACs except:

Answer 13

• Independent Kip and millampere stations

Question 14

T/f - (similar to Cr ) Dr can use the same existin diagnostic devices we use?

Answer 14

F.

Question 15

Which of the following statement isn’t true?( exposure index; exposure patients)

Answer 15

Exposure index refers exposure to patients l

Question 16

T/f - histogram is anatomy specific

Answer 16

T

Question 17

Suppressing frequencies in a area of interest, is?

Answer 17

Masking

Question 18

Magnification is known as what?

Answer 18

Zooming / zoom

Question 19

Who’s responsible to make sure demographic is correct?

Answer 19

Ours/mine- the radiographers

Question 20

High passing filtering useful for enhancing what?

Answer 20

Tissues

Question 21

Changing slope of Look Up table does what?

Answer 21

Contrast (changes contrast)

Question 22

Cesium iodide:

Answer 22

Indirect

Question 23

Del=

Answer 23

Detector element

Question 24

The difference between actual exposure (kind) and target exposure (ktgt)

Answer 24

Deviation index

Question 25

Detective quantum efficiency is what abbreviation

Answer 25

DQE

Question 26

We use edge enhancement for…..

Answer 26

Organs

Question 27

Smoothing Is for….

Answer 27

Bone tissues

Question 28

X-ray energy related to indirect capture Dr will stimulate a.[blank] which eventually is changed into electrical signal

Answer 28

Scintillator

Question 29

Failure to reader to find the collimation edges of an image

Answer 29

Causes image to be too light or t00 dark

Question 30

Automatic rescaling means that images are produced regardless of the amount of exposure with:

Answer 30

Uniform contrast and density

Question 31

Focal spot and OID affect image sharpness [blank ] imaging

Answer 31

In both digital and film/screen

Question 32

Improper algorithm application may result in:

Answer 32

, Degradation of the image

Question 33

Excessive light entering the eye when viewing an image is known as [blank] glare

Answer 33

• Veil

Question 34

An image manipulation process that fills in the background so that it is darkened is known as:

Answer 34

Shuttering

Question 35

The process of joining two or more images into one continuous image is known as image

Answer 35

Stitching