Sacroiliac Joints - APThis is a featured page

Radiographic Positioning


Adult
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Name of projection Sacroiliac Joints - AP
Area Covered Sacroiliac joints, L5-S1 junction and entire sacrum
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 angled cephalad 30° to 45°
CR directed to midline 5cm below the level of ASIS
Collimation Laterally to include both sacroiliac joints
Superior and inferior to include entire sacrum
Markers Distal and Lateral
Marker orientation AP
Shielding Gonadal (check your department's policy guidelines)
RespirationSuspended
Positioning
  • Patient supine on the table
  • Cushion for patients head
  • Legs extended with support under the knees
  • Align midsagittal plane to CR and midline of table
  • Ensure no rotation of the pelvis (ASIS to table distance equal both sides)
  • CR angled cephalad 30° to 45°
  • CR directed to midline 5cm below the level of ASIS
Critique

Positioning

Area Covered

Collimation

Exposure

Special Notes



AndyC
AndyC 		Latest page update: made by AndyC , Jun 19 2011, 4:50 PM EDT (about this update About This Update AndyC Edited by AndyC

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