ASMR 2017

What Do the Experts Say? – Spinal Cord

Challenges

Recommendations

Difficult to see true cord on CT

Use MRI fusion, if available

• Often not specifically covered in atlases • Circumferential extend? • Contour cord or canal? • Superior/Inferior extent • Entire length visible on planning scan or set distance from PTV?

• Contour to the bony limits of the canal • For lung cases, superior limit is the same as oesophagus (cricoid cartilage) • Inferior limit is L2/L3 junction

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