Sacroiliac Joints - Oblique - LPO / RPOThis is a featured page

Radiographic Positioning


Adult
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Name of projection Sacroiliac Joints - Oblique (LPO / RPO)
Area Covered Sacroiliac joint of interest
Pathology shownFracture, dislocation or subluxation of sacroiliac joints
Radiographic AnatomySacroiliac joint radiographic anatomy
IR Size & Orientation 24 x 30cm
Portrait
Film / Screen Combination Regular
(CR and DR as recommended by manufacturer)
Bucky / Grid Moving or Stationary Grid
FilterNo
Exposure 75 kVp
20 mAs
FFD / SID 100cm
Central Ray CR is perpendicular to IR
CR directed 2.5cm medial to upside ASIS
Collimation Four sides of collimation
Collimate closely to area of interest
Markers Distal and Lateral
Marker orientation AP
Mark the joint being demonstrated - right SI joint is shown with LPO and left SI joint with RPO
Shielding Gonadal (check your department's policy guidelines)
RespirationSuspended
Positioning
  • Patient in semi supine position on the table
  • Cushion for patients head
  • Rotate patient 25° to 30° posterior oblique (side of interest being elevated)
  • Right SI joint is shown with LPO and left SI joint with RPO (mark the side being shown)
  • Place support under elevated hip and flex knee
  • Align joint of interest to CR and midline of table
  • CR is perpendicular to IR
  • CR directed 2.5cm medial to upside ASIS
Critique

Positioning
Area Covered
Collimation
Exposure
Special Notes



AndyC
AndyC 		Latest page update: made by AndyC , Jun 19 2011, 4:51 PM EDT (about this update About This Update AndyC Edited by AndyC

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