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library:cervical_spine [2025/02/25 19:13] – scottlibrary:cervical_spine [2025/05/09 01:51] (current) – scott
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 ====Typical Scan Protocol==== ====Typical Scan Protocol====
-The protocol below represents a full cervical spine exam. There is variation depending on the clinical question and clinician preference. The **minimum** recommended sequences are in bold text.+The protocol below represents a full cervical spine exam. There is variation depending on the clinical question and clinician preference. The **minimum** recommended sequences are in bold text. **It is highly recommended to include at least 1 sequence, either T2 or STIR, in the dorsal plane and at least 1 sequence with fat saturation post contrast** For more technical details, see the Protocol Page __here__.
  
  
 **Sagittal T2** \\ **Sagittal T2** \\
-**Sagittal STIR**\\+**Sagittal or Dorsal STIR**\\
 Sagittal T1\\ Sagittal T1\\
 **Axial T2**\\ **Axial T2**\\
 Axial T1\\ Axial T1\\
-Contrast\\+__Contrast__\\
 Sagittal T1 C+\\ Sagittal T1 C+\\
 Axial T1 C+\\ Axial T1 C+\\
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 If choosing the phase direction S/I, motion artifact from respiration and flow the vessels in the cranial thorax will propagate S/I. Unlike awake human patients, there should be no motion artifact from swallowing. In the S/I direction there will be anatomy that extends beyond the FOV, and will require significant oversampling to prevent wrap artifact. This can add quite a bit of time, but will afford some extra SNR, so it may be possible to reduce time by reducing NEX/Averages. Note the flow artifact from the vessels (red arrow). If selecting the phase direction as A/P, it is possible to not only remove all the oversampling, but even to reduce the phase FOV to further reduce time. It is necessary with this method to prescribe a sat band over the cranial thorax to prevent flow artifact from propagating through the caudal cervical spine. It is important to note, this is not an appropriate method when brachial plexus pathology is suspected, as the sat band will obscure the nerve bundles.  If choosing the phase direction S/I, motion artifact from respiration and flow the vessels in the cranial thorax will propagate S/I. Unlike awake human patients, there should be no motion artifact from swallowing. In the S/I direction there will be anatomy that extends beyond the FOV, and will require significant oversampling to prevent wrap artifact. This can add quite a bit of time, but will afford some extra SNR, so it may be possible to reduce time by reducing NEX/Averages. Note the flow artifact from the vessels (red arrow). If selecting the phase direction as A/P, it is possible to not only remove all the oversampling, but even to reduce the phase FOV to further reduce time. It is necessary with this method to prescribe a sat band over the cranial thorax to prevent flow artifact from propagating through the caudal cervical spine. It is important to note, this is not an appropriate method when brachial plexus pathology is suspected, as the sat band will obscure the nerve bundles. 
  
-Phase S/I+==Phase S/I==
  
 {{stirphasesi.png?500}}  {{stirphasesi.png?500}} 
  
-Phase A/P+==Phase A/P==
  
 {{stirphaseAP.png?500}} {{stirphaseAP.png?500}}