MQSA Flashcards

1
Q

who regulates MQSA?

A
  • FDA
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2
Q

how often does medical audit and outcome analysis need to be performed

A
  • annually
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3
Q

how many months of mammo in residency?

A
  • 3 months
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4
Q

recall rate should be

A
  • 5-7%

- less than 10%

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5
Q

mammo facilities required to communicate with patients how?

A
  • lay person report within 30 days of study

- written results with easy to understand language

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6
Q

how do patients address concern in mammo facilities?

A
  • have to hav a consumer complaint mechanism
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7
Q

when needed patients can obtain their…

A
  • original mammograms, not copies
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8
Q

when mammograms are determined to be substandard and risk to public health, facilities will…

A
  • notify patients and their doctors with appropriate plan of action
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9
Q

who is ultimately responsible for QC program?

A
  • interpreting physician
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10
Q

required resolution of mammo?

A
  • 13 lp/mm in anode/cathode direction

- 11 lp/mm in L-R direction

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11
Q

how to pass image quality?

A

must show:

  • 4 fibers
  • 3 microcalcification clusters
  • 3 masses
  • plus acceptable artifacts
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12
Q

dose phantom is composed of

A
  • 50% glandularity
  • 4.2 cm thick
  • dose <3mGy per image with grid
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13
Q

patient dose limits in mammo?

A
  • there are none
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14
Q

typical patient/phantom doses are about…

A
  • 2mGy per view, or 8mGy total on screening
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15
Q

average breast thickness and glandularity

A
  • 6cm compressed

- 15-20% glandularity

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16
Q

digital systems use higher or lower beam quality

A
  • higher to reduce dose and can use post-processing
17
Q

two daily QA tests?

A
  • processor QC

- darkroom cleanliness

18
Q

two weekly QA tests?

A
  • viewbox conditions

- phantom evaluation

19
Q

one quarterly QA test?

A
  • repeat analysis
20
Q

three semi-annual QA tests?

A
  • compression test
  • darkroom fog
  • screen-film contrast
21
Q

darkroom cleanliness

A
  • daily
22
Q

darkroom fog

A
  • semi-annually
23
Q

repeat analysis

A
  • quarterly
24
Q

processor QC

A
  • daily
25
Q

phantom evaluation

A
  • weekly
26
Q

screen-film contrast

A
  • semi-annually
27
Q

compression test

A
  • semi-annually
28
Q

viewbox conditions

A
  • weekly
29
Q

target range for cancers/1000 screened

A
  • 3-8
30
Q

how many mammos to read in last 2 years of residency?

A
  • 240
31
Q

formal training requirement for mammo?

A
  • 3 months
32
Q

documented hours of mammo education?

A
  • 60 hours
33
Q

The fetal dose from a screening mammogram

A

negligible at <50 mGy

3 mGy (0.3 rad) is the FDA/MQSA regulatory limit for average glandular dose per mammogram exposure. The risk of organ malformations (3rd to 8th weeks of gestation) has a threshold of 100 mGy. The risk for severe mental retardation (8 to 15 weeks of gestation) has a threshold of 100 mGy.

34
Q

FDA/MQSA regulatory limit for average glandular dose per mammogram exposure

A

3 mGy (0.3 rad) is the FDA/MQSA regulatory limit for average glandular dose per mammogram exposure.

35
Q

how many fatal breast cancers would be expected when 1 million 40 yo women undergo a screening mammogram

A

10

3 per million per mGy per mGy with an AGD of 3 mGy

36
Q

what is the most likely reduction in % in breast cancer mortality that is believed to be achieved by screening mammography?

A

20%

37
Q

pt recalled from screening (BR-0) then gets at BR-3 on diagnostic work up. Pt decides biopsy instead of follow. The biopsy proves the finding is cancer. statistical classification for both the screening and diagnostic tests? (true/false; postive/negative)

A

screening: true positive. Diagnostic: false negative………

BR-0 screening mammo is a true positive if + for cancer within one year. BR-3 is a false negative if + for cancer within one year. Only 0,4, and 5 are POSITIVE assessments for the MQSA audit.

38
Q

how often do mammo places have to be accredited and certified?

A

every 3 years

39
Q

dose limit to the breast without a grid

A

1 mGy