Arthrogram
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Pre-injection scout

IMAGE RECEPTOR
Patient position
Supine on fluoro table; joint accessible to needle.
Part position
Joint prepped sterilely; contrast (and/or air) injected under fluoro guidance.
Central ray
Perpendicular to joint of interest.
IR placement
Per joint (8x10 to 10x12).

Tech pearls

  • Common: shoulder, knee, wrist, hip.
  • Often combined with MRI (MR arthrogram) for labral/ligamentous detail.
Post-injection AP/Lat/Obliques