title: Is there a need for contrast administration prior to CT-guided cervical nerve root block?
authors.forename: T M
authors.initials: TM
authors.lastname: Ryan
authors.forename: E C
authors.initials: EC
authors.lastname: Kavanagh
authors.forename: P J
authors.initials: PJ
authors.lastname: MacMahon
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D009407:Nerve Block / Q000706:statistics & numerical data*; D011829:Radiation Dosage; D011835:Radiation Protection / Q000706:statistics & numerical data*; D015641:Radiography, Interventional / Q000706:statistics & numerical data*; D013256:Steroids / Q000008:administration & dosage*; D014057:Tomography, X-Ray Computed / Q000706:statistics & numerical data*
chemical_list: D013256:Steroids