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14 Cards in this Set
- Front
- Back
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What are the two schools of thought on imaging of the lumbar spine with CT?
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1 - scan parallel to each vertebral end plate for L3-S1
2 - contiguous axial scanning |
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Why is contiguous axial scanning recommended?
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- no gaps (which could skip free fragments)
- no extra information from gantry angles |
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How could you demonstrate disc spaces with contiguous axial scanning?
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MPRs
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What are the clinical indications for ROUTINE spinal NECT?
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Spinal Stenosis
Post Surgical Suspected Tumour Disk evaluation |
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What are the clinical indications for TRAUMA spinal NECT?
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R/O Fracture
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What are the clinical indications for CT SIM CRANIOSPINAL NECT SSH?
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Leukemia
Medulloblastoma |
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What are the clinical indications for CT SIM SPINE (Palliative) NECT SSH?
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Spinal Metastases
Spinal cord compression |
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How thick would the slices be for TRAUMA spinal CT?
A) thinner than routine B)thicker than routine |
A) thinner than routine
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What area would you scan for Tsp or Csp CTs?
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From the pedicle of the vertebra above the AOI -> the pedicle of the vertebra below the AOI
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How do you determine the area of interest on Csp or Tsp CTs?
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Check the plain films
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What area would you scan for an Lsp CT?
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pedicle of L3 to mid S1 (depending on clinical Hx)
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What area would you scan for CT SIM Craniospinal?
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4cm inferior to S2 -> skull vertex
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What area would you scan for CT SIM Spine (Palliative)
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as determined by disease
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For CT SIM CRANIOSPINAL, how would you change your scan protocol between the spine and the skull?
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thinner slices through the skull to reduce artifact
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