The Importance of Standardizing Acquisition Settings and Interpretation Criteria of Radionuclide Cisternography

We read with interest the paper by lu and colleagues on radionuclide cisternography (rnc) entitled “the value of changing position in the detection of csf leakage in spontaneous intracranial hypotension using tc-99m dtpa scintigraphy: two case reports”, claiming an additive value of scanning the patients in the upright position for the detection of cerebrospinal fluid (csf) leakage (1). in two cases of spontaneous intracranial hypotension (sih), the authors observed the appearance of multiple images of increased radioactivity on both sides of the spinal canal after changing the patient position, which were interpreted as direct signs of csf leaks.