Rad 117

Front 1

quality assurance deals with

Back 1

people

Front 2

quality control deals with

Back 2

instrumentation and equipment

Front 3

image interpretation that involves reconciling the patients ultimate disease condition with the radiologist diagnosis

Back 3

outcome analysis

Front 4

QC concludes with a dedicated analysis of each image to identify ____ & _____ along with ______ & to minimize reexamination

Back 4

deficiencies and artifacts, their cause

Front 5

acceptance test must be done by

Back 5

someone other than the manufacturer's representative

Front 6

an acceptable QC program consists of 3 steps

Back 6

acceptance testing, routine performance monitoring, and maintenance

Front 7

it is normally not possible to measure ____ ____, so one resorts to measurement of the ______

Back 7

filtration directly, half-value layer (HVL)

Front 8

misalignment must not exceed

Back 8

2% of the SID

Front 9

distance and centering indicators must be accurate to within ___ & ___ of the ___

Back 9

2%, 1%, SID

Front 10

3 tools are used for measurement of focal-spot size

Back 10

pinhole camera, the star pattern, and the slit camera

Front 11

the standard for measurement of effective focal-spot size is the

Back 11

slit camera

Front 12

focal spot size should be evaluated _____ or whenever an x ray tube is replaced

Back 12

annually

Front 13

an acceptable alternative to focal spot size measurement is use of a ___ ___ test tool to determine ____ ____ _____

Back 13

line pair test, limiting spatial frequency

Front 14

exposure timer accuracy should be within ___% of the indicated time for exposure times greater than ___ ms

Back 14

5, 10 ms

Front 15

accuracy of ___% is acceptable for exposure times of ___ ms or less

Back 15

20, 10

Front 16

when evaluated in this fashion the radiation output for adjacent mA stations should be within ___%

Back 16

10%

Front 17

sequential radiation exposure should be reproducible to within ____%

Back 17

5%

Front 18

mathematical formulas basically require that output radiation intensity should not vary by more than ___%

Back 18

+ or - 5%

Front 19

if a bulb requires replacement
___ bulbs in that illuminator should be replace and matched tto the other bulbs

Back 19

all

Front 20

fluro patient entrance skin exposure is 3-5 R/min this can result in a skin dose of ___ rad

Back 20

10

Front 21

a 90 second processor that can handle 500 films per hr

Back 21

double capacity processor

Front 22

a double capacity processor must have a high development temp of __ deg. & a developer immersion time of ___ sec & the wash water temp of ___ deg

Back 22

95 degrees F, 22 seconds, 87 degrees F

Front 23

Quality control for processor cleaning crossover racks should be done how often

Back 23

daily

Front 24

is performed on patients with symptoms or elevated risk factors

Back 24

diagnostic mammography

Front 25

is performed on asymptomatic women with the use of a two view protocol usually ML or CC to detect cancer

Back 25

screening mammography

Front 26

is the first radiographic examination of the breasts and is usually obtained before age 40

Back 26

baseline mammogram

Front 27

screening in patients ___ yrs or ___ yrs age group is beneficial in reducing mortality

Back 27

50, 40-49

Front 28

approx. 80% of breast cancer is _____ & may have associated deposits of ______

Back 28

ductal, microcalcifications

Front 29

in terms of detecting breast cancer, microcalcifications smaller than approx. _____ are of interest

Back 29

500 pm

Front 30

mammo is designed for flexibility in patient positioning and have integral compression device _____, _____, & ______

Back 30

a low grid ratio, AEC, microfocus x ray tube

Front 31

all mammo imaging systems incorporate

Back 31

high frequency generators

Front 32

mammo x ray tube usually have stated focal spot sizes _____ of _____ mm

Back 32

large/small, 0.3/0.1 mm

Front 33

effective focal spots 0.3/0.1 mm are obtained with an approx. ___ deg ___ angle & a ___ deg x ray tube ____

Back 33

23, anode, 6, tilt

Front 34

most mammo x ray tubes have inherent filtration in the window of approx ___ mm ______

Back 34

0.1, Al equivalent

Front 35

a long SID with the cathode to the chest wall and tube tilted is considered the best arrangement b/c

Back 35

the focal spot is made effectively smaller

Front 36

a compressed breast is of greater ___ ___, the optical density is more ____, & tissues near chest wall are less likely to be ____, & tissues near nipple are less likely to be ____

Back 36

uniform thickness, uniform, underexposed, overexposed

Front 37

compression results in thinner tissue and therefore less

Back 37

scatter radiation and improved contrast resolution

Front 38

the result of improved image quality is improved ability to detect small low contrast lesions and high contrast microcalcifications b/c of

Back 38

improved spatial resolution

Front 39

vigorous compression results in

Back 39

lower patient dose

Front 40

a unique grid that has been developed specifically for mammo is the

Back 40

high transmission cellular grid

Front 41

effective focal spot size should not exceed

Back 41

0.1 mm

Front 42

mammo films are ___ ___ & are matched with a ____ ____ ____

Back 42

single emulsion, single back screen

Front 43

the latching spring mechanism is designed to produce especially good

Back 43

screen film contact

Front 44

the emulsion surface of the film must always be _____, & the film must be on the _____ of the intensifying screen

Back 44

next to the screen, x ray tube side

Front 45

how many exams for screening

Back 45

2 per breast

Front 46

how many exams for diagnostic

Back 46

2 or more per breast