Technique Chart

Question 1

Technique chart

Answer 1

The function of an exposure system is to provide the radiographer with the techniqal factors necessary to produce a radiograph with visible shades that represent anatomic structures

Question 2

How is a technique chart made?

Answer 2

Stenic patient is used as a baseline to create technique chart

Question 3

IR exposure

Answer 3

to record as much patient information as possible

Question 4

Contrast/gray scale

Answer 4

Should be balanced so that differentiation between structures can be readily made

Question 5

Recorded detail/spatial resolution

Answer 5

Maximum image sharpness possible is desired

Question 6

Distortion

Answer 6

true shape, size, and spatial relationship should be consistent with the clinical needs of the examination

Question 7

Patient exposure

Answer 7

Should be as low as reasonably achievable without compromising image quality

Question 8

many factors must be considered in order to formulate a technique charts including:

Answer 8

mAs
kVp
SID
Grid ratio & type
Field size
Patient size - 85% of all patients will fall within average thickness ranges
Filtration
type of xray generator
pathology
OID
Focal spot size

Question 9

Main 8 types of technqiue chart systems include:

Answer 9

Variable kVp
Fixed kVp
AEC
Anatomic programmed
Body habitus
bit system
supertech
proportional anatomy

Question 10

Variable kilovoltage system

Answer 10

System was formulated by ed jerman in 1925 and involves varying the kVp to compensate for changes in patient size or condition