Figure 2From: Cerebrospinal fluid leakage after radioisotope cisternography is not influenced by needle size at lumbar puncture in patients with intracranial hypotensionRadioisotope cisternography images in two patients at 1 h after injection. A) Parathecal activity at lumbar level (arrows). B) Parathecal activity at both lumbar and thoracic levels (arrowheads). L: left side.Back to article page