Chapter 7- Medical Term

Question 1

x-ray

Answer 1

a form of electromagnetic
radiation that can penetrate matter

Question 2

image receptor(IR)

Answer 2

any device or
medium that captures the remnant beam

Question 3

radiographic image

Answer 3

x-ray image as
viewed on a monitor after acquisition

Question 4

radiographic position

Answer 4

specific position
of the body or body part in relation to
the table or image recepto

Question 5

radiographic projection

Answer 5

path the x-ray
beam takes as it passes through the body

Question 6

fluoroscopy

Answer 6

“live action” imaging when
the x-ray beam is on

Question 7

lead aprons

Answer 7

coverings worn by
radiographers who are in a radiographic
or fluoroscopic room with the x-ray beam
turned o

Question 8

PACS

Answer 8

picture archiving and
communications system that receives and
stores x-ray images

Question 9

imaging plate (IP)

Answer 9

plate that absorbs
the x-rays exiting the patient

Question 10

computed radiography (CR)

Answer 10

digital x-
ray using a cassette containing an
imaging plate

Question 11

direct radiography (DR)

Answer 11

uses fixed
detectors that directly communicate with
a computer

Question 12

grid

Answer 12

device that is placed between the
patient and the image receptor that
absorbs scatter radiation exiting the body

Question 13

Bucky

Answer 13

a moving grid used to remove
scatter radiation which can fog the
image receptor

Question 14

automatic collimation

Answer 14

of x-ray beam to
the same size as the image receptor in
the Bucky tray

Question 15

cassette

Answer 15

container used for holding the
imaging plate (CR

Question 16

collimator

Answer 16

lead shutters that limit the x-
ray beam to a specific area of the body

Question 17

SID (source-to-image receptor
distance)

Answer 17

distance from the source of
radiation to the image receptor

Question 18

anode

Answer 18

positive electrode in the x-ray
tube

Question 19

cathode

Answer 19

negative electrode in the x-ray
tube

Question 20

contrast

Answer 20

the visible difference
between two selected areas of
brightness in the radiographic
image; contrast allows detail to
be visible

Question 21

artifact

Answer 21

an unwanted marking on
a radiographic image

Question 22

contrast media

Answer 22

solutions (barium,
etc.) or gasses introduced into the
body to better visualize structures

Question 23

kVp

Answer 23

peak kilovoltage that is applied to
the x-ray tube

Question 24

mAs (milliampere-seconds)

Answer 24

current that is passed through the x-ray tube