title: Evaluation of cystic duct patency: comparison of functional MR cholangiography with gadoxetate disodium and hepatobiliary scintigraphy in suspected acute cholecystitis.
abstract: OBJECTIVE
  This study aims to compare assessment of cystic duct patency between gadoxetate disodium MRI and hepatobiliary scintigraphy.
  
  
  METHODS
  We performed a prospective study of patients who underwent gadoxetate disodium MRI within 16 h of scintigraphy.
  
  
  RESULTS
  The gallbladder filled on MRI and scintigraphy in 8 patients, none with acute cholecystitis. The mean time to gallbladder filling was 14.6 and 18.9 min for MRI and scintigraphy, respectively. The gallbladder did not fill on both MRI and scintigraphy in 3 patients, all of whom had acute cholecystitis.
  
  
  CONCLUSIONS
  Evaluation of cystic duct patency using gadoxetate disodium MRI is comparable to hepatobiliary scintigraphy.
authors.affiliation: University of California, Davis Medical Center, Department of Radiology, 4860 Y Street, ACC Suite 3100, Sacramento, CA, 95817. Electronic address: Michael.corwin@ucdmc.ucdavis.edu.
authors.forename: Michael T
authors.initials: MT
authors.lastname: Corwin
authors.affiliation: University of California, Davis Medical Center, Department of Radiology, 4860 Y Street, ACC Suite 3100, Sacramento, CA, 95817.
authors.forename: Stephen
authors.initials: S
authors.lastname: Malutich
authors.affiliation: University of California, Davis Medical Center, Department of Surgery, 2315 Stockton Blvd., Sacramento, CA, 95817.
authors.forename: Edgardo S
authors.initials: ES
authors.lastname: Salcedo
authors.affiliation: University of California, Davis Medical Center, Department of Radiology, 4860 Y Street, ACC Suite 3100, Sacramento, CA, 95817.
authors.forename: Ghaneh
authors.initials: G
authors.lastname: Fananapazir
authors.affiliation: University of California, Davis Medical Center, Department of Radiology, 4860 Y Street, ACC Suite 3100, Sacramento, CA, 95817.
authors.forename: John M
authors.initials: JM
authors.lastname: Brock
authors.affiliation: University of California, Davis Medical Center, Department of Radiology, 4860 Y Street, ACC Suite 3100, Sacramento, CA, 95817.
authors.forename: John P
authors.initials: JP
authors.lastname: McGahan
mesh_terms: D000328:Adult; D049448:Cholangiopancreatography, Magnetic Resonance; D041881:Cholecystitis, Acute / Q000175:diagnosis / Q000000981:diagnostic imaging*; D003287:Contrast Media; D003549:Cystic Duct / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D008297:Male; D011237:Predictive Value of Tests; D011446:Prospective Studies; D011877:Radionuclide Imaging
chemical_list: D003287:Contrast Media; C073590:gadolinium ethoxybenzyl DTPA; D019786:Gadolinium DTPA
keywords: Acute cholecystitis; Cystic duct; Functional MR cholangiography; Gadoxetate; Scintigraphy