title: True diameter of vessels.
authors: Technical Medicine, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands; Department of Radiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
authors: Marleen
authors: M
authors: Vonder
authors: Department of Radiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
authors: Tineke P
authors: TP
authors: Willems
authors: Department of Cardiology, Center for Congenital Heart Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
authors: Joost P
authors: JP
authors: van Melle
authors: Department of Pediatric Cardiology, Center for Congenital Heart Diseases, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
authors: Nynke J
authors: NJ
authors: Elzenga
authors: Department of Cardiothoracic Surgery, Center for Congenital Heart Diseases, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
authors: Tjark
authors: T
authors: Ebels
mesh_terms: D005260:Female; D006325:Heart Atria / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D014463:Ultrasonography; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging*; D014683:Vena Cava, Superior / Q000000981:diagnostic imaging*