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IR size—
- (8 × 10 inches), for (24)smaller foot,
- (10 × 12inches), for larger foot,
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IR Lengthwise or Crosswise
lengthwise
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Kvp Range
Digital systems—60 to 70 kV range
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Patient Position
Place patient in lateral recumbent position;provide pillow for patient’s head.
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Part Position (Mediolateral Projection)
- • Flex knee of affected limb about 45°; place opposite leg behind the injured limb to prevent over-rotation of affected leg.
- • Place plantar surface is perpendicular to iR. Do not over-rotate foot.
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Center CR
CR perpendicular to IR, directed to medial cuneiform (at level of base of third metatarsal)
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Recommended Collimation
Collimate to the outer skin margins of the foot to include about 1 inch (2 to 3 cm) proximal to ankle joint.
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Anatomy Demonstrated:
• Entire foot should be demonstrated, with a minimum of 1 inch (2.5 cm) of distal tibia-fibula.
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