title: Effect of C-arm angiographic CT on transcatheter arterial chemoembolization of liver tumors.
abstract: Rotational C-arm angiographic computed tomography (CT) with a flat-panel radiography unit permits three-dimensional (3D) reconstruction of soft tissues and blood vessels. The usefulness of this C-arm technique during transcatheter arterial chemoembolization (TACE) is unknown. The authors analyzed the role of the C-arm technique in 18 patients with unresectable liver tumors during TACE. The technique altered the catheter position anticipated by attending interventional radiologists in seven of the 18 patients (39%; 95% confidence interval [CI]: 20%, 61%) and improved the diagnostic confidence in the selected catheter position in 14 of the 18 patients (78%; 95% CI: 55%, 91%). The technique provides CT-like images that are useful to interventional radiologists during TACE.
authors.affiliation: Department of Radiology, Northwestern University, 448 E Ontario St, Ste 700, Chicago, IL 60611, USA.
authors.forename: Sumeet
authors.initials: S
authors.lastname: Virmani
authors.forename: Robert K
authors.initials: RK
authors.lastname: Ryu
authors.forename: Kent T
authors.initials: KT
authors.lastname: Sato
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Lewandowski
authors.forename: Laura
authors.initials: L
authors.lastname: Kulik
authors.forename: Mary F
authors.initials: MF
authors.lastname: Mulcahy
authors.forename: Andrew C
authors.initials: AC
authors.lastname: Larson
authors.forename: Riad
authors.initials: R
authors.lastname: Salem
authors.forename: Reed A
authors.initials: RA
authors.lastname: Omary
mesh_terms: D000328:Adult; D000792:Angiography; D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging* / Q000628:therapy; D016461:Chemoembolization, Therapeutic; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011857:Radiographic Image Interpretation, Computer-Assisted; D015641:Radiography, Interventional / Q000379:methods*; D014057:Tomography, X-Ray Computed