Indications for imaging
Trauma, Degenerative conditions, gout,
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Anatomy Demonstrated
Tarsal bones, metatarsals and phalanges.
Foot Oblique Rt. Anatomy
Meschan, I. 1955 An Atlas of Normal Radiographic Anatomy
Saunders, London
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| The patients lies or sits on the table legs extended, the
affected limb is flexed at the knee to bring the plantar aspect
of the foot in flat contact with the cassette, the foot is then
rotated medially until the dorsal skin surface is parallel to
the cassette.
Foot Oblique Lt. Patient Position
Meschan, I. 1955 An Atlas of Normal Radiographic Anatomy
Saunders, London
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Radiation protection
Direct lead rubber gonad protection using a "half
apron".
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Central Ray
The vertical central ray is centered to the head of the third
metatarsal.
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Exposure Factors
| Kv |
mAS |
FFD (cm) |
Grid |
Focus |
AEC |
Cassette |
| 55 |
5 |
100 |
No |
Fine |
No |
24 x 30 cm |
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Evaluation of the Image
ID and markers must be present and correct in the appropriate
area of the film
Evidence of collimation on four sides equally around the
centering point.
Limits of the examination, distally the phalanges, proximally
the navicular, medially and laterally the skin surfaces.
There should be visualisation of the joint space between the
heads of the second to fifth metatarsals, the joint spaces
between the cuboid and the heads of the forth and fifth
metatarsals should be open.
Optimal exposure should penetrate all the bone structures and
contrast should be low enough to visualise fully the bone and
soft tissue structures.
Foot Oblique Lt. Radiograph
http://www.vh.org/Providers/TeachingFiles/NormalRadAnatomy/Images/
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Related Projections
Foot DP and Lateral
Tarsal bone and toes projections
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Additional modalities
RNI
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