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Examples of diagnostic DSM. Full-FOV DSM images from a lower cervical-to-mid-/lower thoracic run clearly delineate a CSF-venous fistula in the unsubtracted image (A) and subtracted image (B). A digitally magnified unsubtracted image from another patient shows a very subtle CSF-venous fistula (C), which is better seen in a subsequent CT myelogram (D).
