title: Liver MRI at 3.0 tesla: comparison of image quality and lesion detectability between single-source conventional and dual-source parallel radiofrequency transmissions.
abstract: OBJECTIVE
  To prospectively and intraindividually compare liver magnetic resonance imaging (MRI) using single-source and dual-source parallel radiofrequency (RF) transmissions at 3.0-T for image quality, lesion detectability, and lesion contrast.
  
  
  METHODS
  Ninety-nine patients with 139 liver lesions underwent liver MRI at 3.0-T. Two radiologists performed a consensus review of T2-weighted images (T2WI), heavily T2WI (HT2WI), gadoxetic acid-enhanced hepatobiliary images, and diffusion-weighted imaging using single-source and dual-source RF transmissions with regard to image quality and lesion detectability. Contrast ratios between liver lesions and liver parenchyma were also calculated.
  
  
  RESULTS
  Image quality was better with dual-source than with single-source at T2WI and HT2WI (P < 0.05), but lesion detectabilities were similar for all sequences. There was no significant difference in mean contrast ratios for all sequences (P > 0.05).
  
  
  CONCLUSIONS
  Dual-source RF transmission provides a better image quality with T2WI and HT2WI than with single-source. However, 2 techniques showed similar lesion detectability.
authors.affiliation: Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
authors.forename: Jiyoung
authors.initials: J
authors.lastname: Hwang
authors.forename: Young Kon
authors.initials: YK
authors.lastname: Kim
authors.forename: Min Jung
authors.initials: MJ
authors.lastname: Park
authors.forename: Mi Hee
authors.initials: MH
authors.lastname: Lee
authors.forename: Seong Hyun
authors.initials: SH
authors.lastname: Kim
authors.forename: Won Jae
authors.initials: WJ
authors.lastname: Lee
authors.forename: Dongil
authors.initials: D
authors.lastname: Choi
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016477:Artifacts; D001706:Biopsy; D006528:Carcinoma, Hepatocellular / Q000473:pathology / Q000628:therapy; D003287:Contrast Media; D038524:Diffusion Magnetic Resonance Imaging; D005260:Female; D019786:Gadolinium DTPA; D006391:Hemangioma / Q000473:pathology / Q000628:therapy; D006509:Hepatitis B / Q000473:pathology / Q000628:therapy; D006526:Hepatitis C / Q000473:pathology / Q000628:therapy; D006801:Humans; D007090:Image Interpretation, Computer-Assisted; D008103:Liver Cirrhosis / Q000473:pathology / Q000628:therapy; D008107:Liver Diseases / Q000473:pathology* / Q000628:therapy; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012372:ROC Curve; D012680:Sensitivity and Specificity
chemical_list: D003287:Contrast Media; C073590:gadolinium ethoxybenzyl DTPA; D019786:Gadolinium DTPA