title: The patent track sign.
authors.affiliation: Department of Diagnostic Radiology, Singapore General Hospital, Singapore, Singapore. saravanakumar.swaminathan@mohh.com.sg.|Diagnostic Radiology, SingHealth Residency, SingHealth, 167 Jalan Bukit Merah #17-10 Tower 5, Singapore, 150167, Singapore. saravanakumar.swaminathan@mohh.com.sg.
authors.forename: Saravana Kumar
authors.identifier: http://orcid.org/0000-0003-4017-1966
authors.initials: SK
authors.lastname: Swaminathan
authors.affiliation: Department of Diagnostic Radiology, Singapore General Hospital, Singapore, Singapore.
authors.forename: Richard Hoau Gong
authors.initials: RHG
authors.lastname: Lo
authors.affiliation: Department of Diagnostic Radiology, Singapore General Hospital, Singapore, Singapore.
authors.forename: Nanda
authors.initials: N
authors.lastname: Venkatanarasimha
mesh_terms: D006470:Hemorrhage / Q000000981:diagnostic imaging* / Q000503:physiopathology; D006801:Humans; D007668:Kidney / Q000000981:diagnostic imaging / Q000503:physiopathology; D007674:Kidney Diseases / Q000000981:diagnostic imaging* / Q000503:physiopathology; D008099:Liver / Q000000981:diagnostic imaging / Q000503:physiopathology; D008107:Liver Diseases / Q000000981:diagnostic imaging* / Q000503:physiopathology; D018615:Ultrasonography, Doppler, Color / Q000379:methods*