Image Analysis:Oblique C-spine

Learn what is seen in an AP versus PA Oblique C-spine projection.
Learn how to evaluate your image created through the visualization and interpretation of anatomic structures. This will help to ensure optimal rotation was performed.
Oblique C-spine
SID: 72 Inches
Rotation: 45 Degrees
Anatomy of Interest: Intervertebral Foramina (IVF)
AP: IVF Farthest from IR
PA: IVF Closest to IR
CR angle: 15-20 degrees
AP: Cephalic
PA: Caudal
Over Rotation:
-Smaller verterbral bodies
- z-joints begin showing visually within the image
- mandibular rami coming closer to superimposition
- Obscured IVF
Under Rotation:
- Larger vertebral bodies, more closesly resembles AP
- Pedicle situated very lateral on the body of the vertebrae
- Mandible presnts closer to an AP position
- Obscured IVF

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