title: CT-guided biopsy of perivascular tumor encasement using simultaneous IV contrast enhancement.
abstract: OBJECTIVE
  The purpose of our study was to describe and review the accuracy of a novel technique for difficult biopsy of arterial tumor encasement using simultaneous IV contrast enhancement and helical CT guidance for coaxial core needle biopsies.
  
  
  CONCLUSIONS
  Diagnostic biopsy specimens can be obtained safely using simultaneous IV contrast-enhanced CT guidance during difficult biopsies of unresectable tumors encasing the celiac, superior mesenteric, or left renal arteries.
authors.affiliation: Department of Radiology, Mayo Clinic, Scottsdale, AZ 85259, USA. collins.joseph@mayo.edu
authors.forename: Joseph M
authors.initials: JM
authors.lastname: Collins
authors.forename: J Scott
authors.initials: JS
authors.lastname: Kriegshauser
authors.forename: Kevin O
authors.initials: KO
authors.lastname: Leslie
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000792:Angiography / Q000379:methods*; D001707:Biopsy, Needle / Q000379:methods*; D003287:Contrast Media / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009369:Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D011856:Radiographic Image Enhancement / Q000379:methods*; D012189:Retrospective Studies; D025321:Surgery, Computer-Assisted / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000379:methods*
chemical_list: D003287:Contrast Media