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Technique Chart
|
Film Screen: Regular 200 speed. |
| Examination |
Thickness |
KVP |
MAS |
SID |
Notes |
|
Foot |
|
| Dorso-plantar (AP) |
Normal |
55 -60 |
1.5 |
28” |
|
| Lateral |
Normal |
55 -60 |
1.5 |
28” |
|
| Marked Lesion |
Normal |
55 -60 |
1.5 |
28” |
|
| Lateral Oblique |
Normal |
55 -60 |
1.5 |
28” |
|
| Medial Oblique |
Normal |
55 -60 |
1.5 |
28” |
|
| Axial Calcaneal |
Normal |
55 -60 |
4.5 |
28” |
|
| Axial Sesamoid |
Normal |
55 -60 |
4.5 |
28” |
|
| Harris and Beath |
Normal |
55 -60 |
4.5 |
28” |
|
| Lewis |
Normal |
55 -60 |
3.0 |
28” |
|
| Causton |
Normal |
55 -60 |
3.0 |
28” |
|
|
Ankle |
|
| Anterior-Posterior |
Normal |
55 -60 |
3.0 |
28” |
|
| Lateral |
Normal |
55 -60 |
3.0 |
28” |
|
| Lateral Oblique |
Normal |
55 -60 |
3.0 |
28” |
|
| Medial Oblique |
Normal |
55 -60 |
3.0 |
28” |
|
| Mortise |
Normal |
55 -60 |
3.0 |
28” |
|
| Stress Views (AP, lat) |
Normal |
55 -60 |
1.5 |
28” |
|
| Holly |
Normal |
55 -60 |
1.5 |
28” |
|
| Isherwood |
Normal |
55 -60 |
1.5 |
28” |
|
| Broden |
Normal |
55 -60 |
3.0 |
28” |
|
| |
|
Film Screen: iCRco 150 speed. |
| Examination |
Thickness |
KVP |
MAS |
SID |
Notes |
| Foot |
|
| Dorso-plantar (AP) |
Normal |
55 -60 |
5.5 |
28” |
|
| Lateral |
Normal |
55 -60 |
5.5 |
28” |
|
| Marked Lesion |
Normal |
55 -60 |
5.5 |
28” |
|
| Lateral Oblique |
Normal |
55 -60 |
5.5 |
28” |
|
| Medial Oblique |
Normal |
55 -60 |
5.5 |
28” |
|
| Axial Calcaneal |
Normal |
55 -60 |
5.5 |
28” |
|
| Axial Sesamoid |
Normal |
55 -60 |
5.5 |
28” |
|
| Harris and Beath |
Normal |
55 -60 |
5.5 |
28” |
|
| Lewis |
Normal |
55 -60 |
5.5 |
28” |
|
| Causton |
Normal |
55 -60 |
5.5 |
28” |
|
|
Ankle |
|
| Anterior-Posterior |
Normal |
55 -60 |
5.5 |
28” |
|
| Lateral |
Normal |
55 -60 |
5.5 |
28” |
|
| Lateral Oblique
|
Normal |
55 -60 |
5.5 |
28” |
|
| Medial Oblique |
Normal |
55 -60 |
5.5 |
28” |
|
| Mortise |
Normal |
55 -60 |
5.5 |
28” |
|
| Stress Views (AP,
lat) |
Normal |
55 -60 |
3.0 |
28” |
|
| Holly |
Normal |
55 -60 |
3.0 |
28” |
|
| Isherwood |
Normal |
55 -60 |
3.0 |
28” |
|
| Broden |
Normal |
55 -60 |
3.0 |
28” |
|
| |
Harris
Axial projection of the heel is useful for demonstrating talo-calcaneal
bars. Patient stands with both feet on the film. The patient leans
forward slightly. The tube is positioned behind the patient and the
central ray is angled 45 degrees towards the heels and is centered
between the medial malleolus.
Lewis Method
The routine view of the Sesamoid bones of the first metatarsal.
Isherwood Methods (subtalar region)
1) Projection to demonstrate the anterior subtalar articulation. Medial
border of the foot at a 45-degree angle to the cassette. Center 2.5cm
distal and 2.5cm anterior to the lateral malleolus.
2) Projection to demonstrate the middle articulation of the subtalar
joint and give an end-on view of the sinus tarsi. Foot in the AP ankle
position, rotate the ankle 30 degrees medially. Center to a point 2.5cm
distal and 2.5cm anterior to the lateral malleolus with a 10 degree
cephalad angulation.
3) Projection to demonstrate the posterior articulation of the subtalar
joint in profile.
Foot in the AP ankle position. Rotate the ankle 30 degrees laterally.
Center to a point 2.5cm distal to the medial malleolus with a 10-degree
cephalad angulation.
Broden I
Subtalar joint view. Foot positioned as for AP ankle, then rotate the
foot 45 degrees medially. Angled the tube cranially between 10 degrees
and 40 degrees.
Broden II
Subtalar joint view. Foot positioned as for AP ankle, then rotate the
foot 45 degrees externally. Angle the tube cranially 15 degrees.
Causton Method
Oblique foot projection to demonstrate the sesamoids. Position foot
laterally, with the medial side against the cassette. Angle the central
ray 40 degrees towards the ankle and center to the first
metatarsophalangeal sesamoids.
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