General Cisternogram at Swedish

Information and Preparation Instructions

Please arrive in the Radiology department prior to the exam for the admissions process. You will be taken to diagnostic radiology for a lumbar puncture procedure where the radionuclide tracer will be injected by a neuroradiologist. Please wear loose, warm, comfortable clothing free of metal. The radiotracer will not cause any allergic reaction or discomfort. The tracer attaches to the cerebral spinal fluid to allow for later imaging. Please note: You will be in recovery from the lumbar puncture for 2 hours. Immediately following recovery, you will go to the department for imaging. Images will take approximately 40 minutes and delayed imaging will be required at 4, 24, 48 and possibly 72 hours post injection.

Before Your General Cisternogram

  • The lumbar puncture appointment must take place in the early morning in order to complete this test
  • During the recovery period of the lumbar puncture, you must remain horizontal in order to reduce headache