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AP PROJECTION: LEG
Minimum SID—
40 inches to 48
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AP PROJECTION: LEG
IR size—
35 × 43cm (14 × 17)
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AP PROJECTION: LEG
Kv Range
- Analog—70 ± 5 kV range
- Digital systems—70 to 80 kV range
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AP PROJECTION: LEG
Anatomy Demonstrated: A,B,C,
- A-Entire tibia and fibula
- B-must include ankle
- C- Must Include Knee Joint
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AP PROJECTION: LEG
Center to
Middle Of leg
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LATERAL PROJECTION: LEG
Minimum SID—
40 inches to 48 inches
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LATERAL PROJECTION: LEG
IR size—
- 35 × 43 cm (14 × 17 inches),
- lengthwise or diagonal
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LATERAL PROJECTION: LEG
Kv Range
- Analog—70 ± 5 kV range
- Digital systems—70 to 80 kV range
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LATERAL PROJECTION: LEG
Patient Position
Place patient in the lateral recumbent position, injured side down; the opposite leg may be placed behind the affected leg and supported with a pillow or sandbags.
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LATERAL PROJECTION: LEG
CR Centered To
CR perpendicular to IR, directed to midpoint of leg
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LATERAL PROJECTION: LEG
Anatomy Demonstrated:
- Entire tibia and fibula
- must include ankle Joint
- knee jointsJoint
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AP PROJECTION: KNEE
Kv Range
- Analog -(70±5kV)
- Digital systems—70 to 85 kV range
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AP PROJECTION: KNEE
Part Position
Rotate leg internally 3° to 5° for true AP knee (or until interepicondylar line is parallel to plane of IR).
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AP PROJECTION: KNEE
No Gid Or Grid
Use Grid or Bucky More Than 10cm
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AP PROJECTION: LEG
No Grid Or Grid
No Grid Less Than 10cm
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AP PROJECTION: KNEE
Center CR To
Direct CR to a point 12 inch (1.25 cm) distal to apex of patella.
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AP PROJECTION: KNEE
Angle CR At What Degrees
A
B
C
- A-3° to 5° caudad (thin thighs and buttocks)
- B-0° angle (average thighs and buttocks)
- C-3° to 5° cephalad (thick thighs and buttocks)
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AP PROJECTION: KNEE
Anatomy Demonstrated:
- • Distal femur and proximal tibia and fibula are shown.
- • Femorotibial joint space should be open,
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