Sesamoids - ObliqueThis is a featured page

Radiographic Positioning


Adult
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Name of projection Sesamoids - Oblique
Area Covered Head of the first metatarsal, sesamoid bones
Pathology shownExtent of injury to sesamoid bones
Radiographic AnatomyFoot Radiographic Anatomy
IR Size & Orientation 18cm x 24 cm
Landscape
Film / Screen Combination Detail
(CR and DR as recommended by manufacturer)
Bucky / Grid No
FilterNo
Exposure 50 kVp
2 mAs
FFD / SID 100cm
Central Ray CR directed to the prominence of the first metatarsophalangeal joint at an angle of 40° towards the heel
Collimation Four sides of collimation
Collimate closely to area of interest
Markers Distal and lateral
Marker orientation AP
Shielding Gonadal (check your department's policy guidelines)
RespirationNot applicabe
Positioning
  • Patient in a lateral recumbent position on the unaffected side
  • Partially extend the limb being examined and put support under knee and foot
  • Adjust height of support under knee to place the foot in the lateral position with the first metatarsophalangeal joint perpendicular to the horizontal
  • Place IR under metatarsal region
  • CR directed to the prominence of the first metatarsophalangeal joint at an angle of 40° towards the heel
Critique

Positioning
Area Covered
Collimation
Exposure
Special Notes



AndyC
AndyC 		Latest page update: made by AndyC , Jun 18 2011, 4:35 PM EDT (about this update About This Update AndyC Edited by AndyC

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