title: Antegrade ultrasound contrast injection facilitates accurate nephrostomy tube positioning during percutaneous nephrolithotomy.
authors.affiliation: Department of Urology, University of California, San Francisco, San Francisco, California, USA.|Division of Urology, Faculty of Medicine, King Chulalongkorn Memorial Hospital, Chulalongkorn University, The Thai Red Cross Society, Bangkok, Thailand.
authors.forename: Manint
authors.initials: M
authors.lastname: Usawachintachit
authors.affiliation: Department of Urology, University of California, San Francisco, San Francisco, California, USA.
authors.forename: David T
authors.initials: DT
authors.lastname: Tzou
authors.affiliation: Department of Radiology, University of California, San Francisco, San Francisco, California, USA.
authors.forename: John
authors.initials: J
authors.lastname: Mongan
authors.affiliation: Department of Radiology, University of California, San Francisco, San Francisco, California, USA.
authors.forename: Stefanie
authors.initials: S
authors.lastname: Weinstein
authors.affiliation: Department of Urology, University of California, San Francisco, San Francisco, California, USA.
authors.forename: Thomas
authors.initials: T
authors.lastname: Chi
mesh_terms: D000328:Adult; D000368:Aged; D003287:Contrast Media / Q000008:administration & dosage; D005260:Female; D006801:Humans; D007267:Injections; D007669:Kidney Calculi / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D000074642:Nephrolithotomy, Percutaneous; D009403:Nephrostomy, Percutaneous; D000075082:Proof of Concept Study; D018084:Ultrasonography, Interventional / Q000379:methods*; D014546:Urinary Catheterization / Q000379:methods
chemical_list: D003287:Contrast Media