X-RAY OF FINGER
X-ray Finger P/A View
Finger PA
Region: phalanges, distal metacarpal bone
Pathology: fracture and osteoarthritis of finger
SID: 100 cm (40 inches)
Central Ray: perpendicular beam directed at the proximal interphalangeal joint
Respiration: unrelated
Position:
1. The patient is placed in a sitting position.
2. Place the phalanges of the filming hand perpendicular to image receptor (IR).
3. Align the major axis of hand and forearm on the vertical axis of IR.
4. Spread the fingers apart to avoid superimposition.
Collimation: Include all structures from distal phalanx of finger to distal portion of metacarpal bone.
Evaluation:
1. Phalanges should not be rotated.
2. The filming finger must not be superimposed over other fingers.
3. Soft tissue should be clearly demonstrated and shadow of trabecular must be observable.
4. Space between interphalangeal joints should be observable.
kVp-50, mAs-2
Tip:
1. When high resolution is necessary, low kVp shooting or use of non-screen cassette, etc can be considered.
X-ray Finger Lateral View
Finger Lateral
Region: phalanges, distal metacarpal bone
Pathology: fracture, osteoarthritis and foreign body of finger
SID: 100 cm (40 inches)
Central Ray: perpendicular beam directed at the interphalangeal joint
Respiration: unrelated
Position:
1. The patient is placed in a sitting position.
2. Place the filming phalanges perpendicular to image receptor (IR).
3. Fully extend the filming finger and flex the remaining finger.
4. Use a sponge to support the finger on the IR.
Collimation: Include all structures from distal phalanx of finger to distal portion of metacarpal bone.
Evaluation:
1. Phalanges should be in the true lateral position.
2. The filming finger must not be superimposed over other fingers.
3. Soft tissue should be clearly demonstrated and shadow of trabecular must be observable.
4. Space between interphalangeal joints should be observable.
kVp-50, mAs-2
Tip:
1. When high resolution is necessary, low kVp shooting or use of non-screen cassette, etc can be considered.
2. When the finger does not stretch out, overlapping with other fingers can be prevented by using a support splint.
