title: A Computed Tomography-Guided Demonstration of the Unilateral Distribution of Low-Volume Epidural Injectate.
abstract: The primary objective of this case report was to demonstrate the unilateral distribution of the low volume injectate given in the epidural space when paramedian interlaminar approach is utilized under computed tomography guidance.
  
  
  
  This was a case report on a single patient with history of unilateral epidural contrast distribution under fluoroscopy views, who presented with bilateral lumbar radicular symptoms, and underwent epidural injections via bilateral paramedian interlaminar approach under computed tomography guidance. Multiple-level computed tomography scans were obtained for demonstration purposes.
  
  
  
  There was primarily unilateral distribution of low-volume injectate in the epidural space when paramedian interlaminar approach is utilized.
authors.affiliation: Department of Anesthesiology, Hospital for Special Surgery, Weill Cornell Medical College, New York, New York, U.S.A.
authors.forename: Semih
authors.initials: S
authors.lastname: Gungor
authors.affiliation: Department of Psychiatry, Hofstra Northwell Health, Staten Island University Hospital, Staten Island, New York, U.S.A.
authors.forename: Rohit
authors.initials: R
authors.lastname: Aiyer
mesh_terms: D000368:Aged; D004824:Epidural Space / Q000000981:diagnostic imaging* / Q000187:drug effects; D005260:Female; D005471:Fluoroscopy / Q000379:methods; D006801:Humans; D007268:Injections, Epidural / Q000379:methods; D064795:Intraoperative Neurophysiological Monitoring / Q000379:methods*; D008012:Lidocaine / Q000008:administration & dosage; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging* / Q000187:drug effects; D011843:Radiculopathy / Q000000981:diagnostic imaging / Q000601:surgery; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D008012:Lidocaine
keywords: computed tomography; epidural steroid injection; interlaminar; low volume; unilateral