Lumbar - L5/S1 LateralThis is a featured page

Radiographic Positioning


Adult
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Name of projection L5/S1 - Lateral
Area Covered Open L4 to L5 and L5 to S1 joint space,
Pathology shown Spondylolisthesis involving L4 to L5 or L5 to S1, fractures and degeneration
Radiographic Anatomy Lumbar Spine Radiographic Anatomy
IR Size & Orientation 18 x 24 cm
Film / Screen Combination Regular
(CR and DR as recommended by manufacturer)
Bucky / Grid Moving or Stationary Grid
Filter No
Exposure 85 kVp
50 mAs
FFD / SID 100cm
Central Ray CR perpendicular to IR
CR 4cm inferior to iliac crest and 5cm posterior to ASIS
Collimation Four sides of collimation
collimate closely to area of interest
Markers Anterior
Marker orientation AP
Shielding Gonadal (check your department's policy guidelines)
Respiration Suspended
Positioning
  • Patient in the lateral recumbent position on the table
  • Cushion for patients head
  • Knees flexed
  • Ensure pelvis is in true lateral position
  • CR perpendicular to IR
  • CR 4cm inferior to iliac crest and 5cm posterior to ASIS
Critique

 Positioning

Area Covered

Collimation

Exposure

Special Notes



AndyC
AndyC 		Latest page update: made by AndyC , Jun 19 2011, 4:48 PM EDT (about this update About This Update AndyC Edited by AndyC

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Keyword tags: l5-s1 l5/s1 l5s1 l5s1 positioning l5s1 technique
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Lumbar - L5/S1 AP or PA