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AJT Special > SPECIAL - Mammo and Nucs QC > Flashcards

SPECIAL - Mammo and Nucs QC Flashcards

1
Q

Mammo QC - stereo accuracy/alignment

A

daily (before use)

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2
Q

Mammo QC - mobile unit

A

daily

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3
Q

Mammo QC - processor

A

daily

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4
Q

Mammo QC - darkroom cleanliness

A

daily

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5
Q

Mammo QC - viewbox/screen cleanliness

A

weekly

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6
Q

Mammo QC - phantom

A

weekly

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7
Q

Mammo QC - uniformity

A

weekly; flat field test with a large piece of acrylic

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8
Q

Mammo QC - repeat analysis

A

quarterly

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9
Q

Mammo QC - compression

A

semi-annually

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10
Q

Mammo QC - darkroom fog

A

semi-annually

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11
Q

Mammo QC - screen-film contrast

A

semi-annually

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12
Q

Mammo QC - digital machines

A

follow manufacturer’s recommendations

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13
Q

Gamma camera QC - extrinsic uniformity

A

daily; with collimator; Co-57 flood source

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14
Q

Gamma camera QC - photopeaking

A

daily; test photopeak window on a common source (e.g. Tc-99m)

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15
Q

Gamma camera QC - intrinsic uniformity

A

weekly; without collimator; Tc-99m vial

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16
Q

Gamma camera QC - spatial resolution

A

weekly; bar phantom

17
Q

Gamma camera QC - linearity

A

weekly; bar phantom

18
Q

Gamma camera QC - center of rotation

A

weekly or monthly (conflicting sources); using point or line source

19
Q

Gamma camera QC - overall system performance

A

quarterly; Jascszak phantom; Tc-99m source

20
Q

Gamma camera QC - table and gantry alignment

A

quarterly

21
Q

Dose calibrator QC - constancy

A

daily; Cs-137 (long half-life); measuring same activity across time

22
Q

Dose calibrator QC - linearity

A

quarterly; Tc-99m; activity should half q6 hours

23
Q

Dose calibrator QC - accuracy

A

annually; checked against standardized doses of Co-57, Cs-137, and Co-60 (varying energy levels)

24
Q

Dose calibrator QC - geometry

A

installation or relocation; different shaped Tc-99m samples

25
Q

Well counter QC - background

A

daily

26
Q

Well counter QC - constancy

A

daily

27
Q

Survey meter QC - battery

A

before each use

28
Q

Survey meter QC - background

A

before each use

29
Q

Survey meter QC - constancy

A

before each use

30
Q

Survey meter QC - calibration

A

annually

31
Q

Sealed sources QC

A

wipe test for leaks every 6 months

32
Q

PET QC - attenuation correction

A

daily; “blank scan”

33
Q

PET QC - uniformity

A

daily; “blank scan”

AJT Special (12 decks)

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