title: Contrast-enhanced ultrasound of liver lesions related to arterial thrombosis in adult liver transplantation.
abstract: OBJECTIVE
  To describe the contrast-enhanced ultrasound (CEUS) features of liver and biliary lesions related to hepatic artery thrombosis in adult patients with orthotopic liver transplantation.
  
  
  METHODS
  Gray-scale ultrasound (US), Doppler US, and CEUS using a hexafluoride-based US contrast media were performed on a series of eight patients with liver transplantation and hepatic artery thrombosis.
  
  
  RESULTS
  Six of the cases presented infarctions, seen as parenchymal geographic areas of lack of enhancement. Biliary necrosis, seen as nonenhancing periportal cuff, was seen in one case. Infected biloma, seen as a nonenhancing hilar collection, was present in two cases. Infarction and biloma coexisted in one patient. Two abscesses were seen as a late complication in one case. One of them was seen as a typical necrotic abscess with a central nonenhancing area and peripheral rim enhancement higher than the surrounding liver. The other one was seen as a partially liquefied abscess.
  
  
  CONCLUSIONS
  CEUS was useful to diagnose lesions related to hepatic artery thrombosis in liver transplantation. It enabled distinguishing between them and to define their size and extension better than conventional gray-scale US.
authors.affiliation: Servicio de Radiodiagnóstico, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain.
authors.forename: Teresa
authors.initials: T
authors.lastname: Fontanilla
authors.forename: Ana
authors.initials: A
authors.lastname: Noblejas
authors.forename: Cristina
authors.initials: C
authors.lastname: Cortes
authors.forename: Javier
authors.initials: J
authors.lastname: Minaya
authors.forename: Santiago
authors.initials: S
authors.lastname: Mendez
authors.forename: Enrique
authors.initials: E
authors.lastname: Van den Brule
authors.forename: Concepcion Gonzalez
authors.initials: CG
authors.lastname: Hernando
authors.forename: Marta
authors.initials: M
authors.lastname: Alfageme
authors.forename: Isolina
authors.initials: I
authors.lastname: Baños
authors.forename: Elisa
authors.initials: E
authors.lastname: Aguirre
mesh_terms: D000038:Abscess / Q000000981:diagnostic imaging; D000328:Adult; D003287:Contrast Media; D005260:Female; D006499:Hepatic Artery / Q000000981:diagnostic imaging; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007091:Image Processing, Computer-Assisted / Q000379:methods; D007238:Infarction / Q000000981:diagnostic imaging; D008099:Liver / Q000000981:diagnostic imaging; D008107:Liver Diseases / Q000000981:diagnostic imaging*; D016031:Liver Transplantation; D008297:Male; D008875:Middle Aged; D009336:Necrosis / Q000000981:diagnostic imaging; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D012189:Retrospective Studies; D013927:Thrombosis / Q000000981:diagnostic imaging*; D018615:Ultrasonography, Doppler, Color / Q000379:methods
chemical_list: D003287:Contrast Media
keywords: biliary ischemia; contrast-enhanced ultrasound; liver infarction; liver transplantation