Fig. 1

Imaging modalities used for patient evaluation and selection of EBP level. (a) Sagittal view of spine MRI with heavily T2-weighted fat-saturated imaging showing spinal longitudinal extradural fluid (SLEC). (b) Axial view of spine MRI showing ventral SLEC along with bilateral nerve root diverticula. (c) Noncontrast spine CT identifying the presence of discogenic microspurs. (d) Digital subtraction myelography (DSM) demonstrating a localised CSF leak at a mid-thoracic level