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Radiology > Standard Thumb Views > Flashcards

Standard Thumb Views Flashcards

1
Q

PA Thumb: SID

A

40”

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2
Q

PA Thumb: Tube Tilt

A

None

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3
Q

PA Thumb: Image Receptor Size

A

-Film:1/3ofa10”x12”film,dividedcrosswise,inlandscapeorientation,withleadstripscoveringthe1/2oftheimagereceptorthatisnotbeingexposedatthetime.

-Digital:Thesmallestimagereceptoravailable(8”x10”or10”x12”),inportraitorientation

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4
Q

PA Thumb: Patient Positioning

A

Thepatientisseatedatatablewiththeimagereceptorplacedonthetable.Thehandis placedinpronation,andthefirstdigitisplaceddorsalsidedownwiththenailbedparalleltotheimage receptor.Digits 2-5areextendedandstackedononeanother,perpendiculartotheimagereceptor.Theinterphalangealjointof thethumbshouldbeinneutralposition.Theforearmshouldberestingonthetable.Thefirst metacarpophalangealjointshouldbecenteredto1/3oftheimagereceptor(film)ortheimagereceptor (digital).

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5
Q

PA Thumb: Central Ray Position

A

Throughthefirstmetacarpophalangealjoint

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6
Q

PA Thumb: Collimation

A

To1/3oftheimagereceptor(film)orthesizeofthehand,includingallfingertipsandallwrist joints(digital)

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7
Q

PA Thumb: Collimation

A

To1/3oftheimagereceptor(film)orthesizeofthethumb,includingallfingertipandthe carpometacarpaljoint(digital)

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8
Q

Lateral Oblique Thumb: SID

A

40”

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9
Q

Lateral Oblique Thumb: Image Receptor Size

A

-Film:1/3ofa10”x12”film,dividedcrosswise,inlandscapeorientation,withleadstripscoveringthe2/3oftheimagereceptorthatisnotbeingexposedatthetime. -Digital:Thesmallestimagereceptoravailable(8”x10”or10”x12”),inportraitorientation

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10
Q

Lateral Oblique Thumb: Patient Positioning

A

Thepatientisseatedatatablewiththeimagereceptorplacedonthetable.Theaffected handisplacedpalmarsidedown,withdigits2‐5ulnar‐deviatedawayfromthethumbatthe metacarpophalangealjoints.Thenailbedwilllieatanangleapproximately45degreestotheimagereceptor.Theinterphalangealjointshouldbeinneutralposition.Theforearmshouldberestingonthetable.Thefirstmetacarpophalangealjointshouldbecenteredto1/3oftheimagereceptor(film)ortheimagereceptor (digital).

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11
Q

Lateral Oblique Thumb: Central Ray Position

A

Throughthefirstmetacarpophalangealjoint

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12
Q

Lateral Oblique Thumb: Collimation

A

To1/3oftheimagereceptor(film)orthesizeofthethumb,includingallfingertipandthe carpometacarpaljoint(digital)

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13
Q

Lateral Thumb: SID

A

40”

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14
Q

Lateral Thumb: Tube Tilt

A

None

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15
Q

Lateral Thumb: Image Receptor Size

A

-Film:1/3ofa10”x12”film,dividedcrosswise,inlandscapeorientation,withleadstripscoveringthe2/3oftheimagereceptorthatisnotbeingexposedatthetime.
-Digital:Thesmallestimagereceptoravailable(8”x10”or10”x12”),inportraitorientation

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16
Q

Lateral Thumb: Patient Positioning

A

Thepatientisseatedatatablewiththeimagereceptorplacedonthetable.Theaffected handisplacedpalmarsidedown,withthelateralaspectofthethumbagainsttheimagereceptor,sothatthe nailbedliesperpendiculartotheimagereceptor.Digits2-5areflexedatthemetacarpophalangealjointand restontheimagereceptorforsupport.Alternately,-digits205mayrestonafoamwedgeforsupport.The interphalangealjointshouldbeinneutralposition.Theforearmshouldberestingonthetable.Thefirst metacarpophalangealjointshouldbecenteredto1/3oftheimagereceptor(film)ortheimagereceptor (digital).

17
Q

Lateral Thumb: Central Ray Position

A

Throughthefirstmetacarpophalangealjoint

18
Q

Lateral Thumb: Collimation

A

To1/3oftheimagereceptor(film)orthesizeofthethumb,includingallfingertipandthe carpometacarpaljoint(digital)

Radiology (14 decks)

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