title: A new technique for localization of hepatic tumors that are poorly visible with CT fluoroscopy.
abstract: The purpose of this study was to report a new technique for localization of hepatic tumors that are poorly visible with CT fluoroscopy. Forty-three hepatocellular carcinomas were not visible with CT fluoroscopy. A 22-gauge Chiba end-hole needle was inserted in the approximate location of a lesion estimated on the basis of anatomical landmarks demonstrated on both previous MR and CT images. We injected 3 ml of a mixture of nonionic contrast material and saline solution. Following the first injection, contrast solution filled the hepatic lesion in 29 of 43 cases. In 8 of 43 cases, contrast solution was distributed in the normal surrounding liver. In 7 of these 8 cases, repositioning allowed us to adjust the needle in the tumor. In the other 6 of 43 cases, contrast solution spread within capsule or pseudocapsule (pattern 3). In all 6 cases, repositioning allowed to adjust the needle in the tumor. This new technique allows an accurate localization of hepatic tumors that are poorly visible with CT fluoroscopy.
authors.affiliation: Department of Radiology, Saint-Antoine Hospital, 184 rue du Faubourg Saint-Antoine, 75571, Paris cedex 12, France. lionel.arrive@sat.ap-hop-paris.fr
authors.forename: Lionel
authors.initials: L
authors.lastname: Arrivé
authors.forename: Olivier
authors.initials: O
authors.lastname: Rosmorduc
authors.forename: Louisa
authors.initials: L
authors.lastname: Azizi
authors.forename: Laurence
authors.initials: L
authors.lastname: Monnier-Cholley
authors.forename: Maïté
authors.initials: M
authors.lastname: Lewin
authors.forename: Marc
authors.initials: M
authors.lastname: Beaussier
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Tubiana
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging* / Q000473:pathology; D003287:Contrast Media / Q000008:administration & dosage; D005260:Female; D005471:Fluoroscopy; D019786:Gadolinium DTPA / Q000008:administration & dosage; D006801:Humans; D015552:Injections, Intralesional; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D015641:Radiography, Interventional / Q000379:methods*; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media; D019786:Gadolinium DTPA