Abdominal Evaluation

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  • Abdomen Evaluation
    • 1. Identifaction
      • Patients full name
    • 4. Correct projection
      • Long axis of spine coincident with mid line of image
      • Spinous processes visible
      • Symmetrical iliac fossae and obturator foramen
      • Sacrum is central in pelvic inlet
    • 2. Aspect markers
      • In the primary beam or post-processing
    • 6. Image denisty
      • The amount of image blackening without compromising image contrast
        • Bone is weight, fat is dark grey and air is black
    • 8. Collimation
      • Must include AOI
      • Accuracy reduces radiation dose
    • 9. Artefacts and pathology
      • Removed trousers, buttons, zips etc.
      • Kidney stones, swallowed FB?
    • 10. Repeats
      • Cross renal
      • Bladder view
      • Any external arefacts obsecuring pahtology?
    • 7. Image sharpness
      • Patient movement
        • Should be minimised by the supine postion
      • Geometric
    • 5. Image contrast
      • The difference between densities of two adjacent areas
        • Bony trabeculae seen
        • Soft tissue structures visibile e.g. bladder
  • 3. AOI
    • Superior: as much as upper abdomen as possible
    • Lateral: lateral borders of abdomen
    • Inferior: lower border of symphysis pubis
    • Abdomen Evaluation
      • 1. Identifaction
        • Patients full name
      • 4. Correct projection
        • Long axis of spine coincident with mid line of image
        • Spinous processes visible
        • Symmetrical iliac fossae and obturator foramen
        • Sacrum is central in pelvic inlet
      • 2. Aspect markers
        • In the primary beam or post-processing
      • 6. Image denisty
        • The amount of image blackening without compromising image contrast
          • Bone is weight, fat is dark grey and air is black
      • 8. Collimation
        • Must include AOI
        • Accuracy reduces radiation dose
      • 9. Artefacts and pathology
        • Removed trousers, buttons, zips etc.
        • Kidney stones, swallowed FB?
      • 10. Repeats
        • Cross renal
        • Bladder view
        • Any external arefacts obsecuring pahtology?
      • 7. Image sharpness
        • Patient movement
          • Should be minimised by the supine postion
        • Geometric
      • 5. Image contrast
        • The difference between densities of two adjacent areas
          • Bony trabeculae seen
          • Soft tissue structures visibile e.g. bladder

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