title: Use of an acoustic transponder for US visualization of biopsy needles.
abstract: A 20-gauge Chiba needle with a stylet embedded with polyvinyldifluoride (PVDF), a polymer that acts as an acoustic-electric transducer, facilitated a variety of diagnostic and therapeutic ultrasound (US)-guided interventions in nine patients. PVDF receives acoustic energy from the US scanner and transmits an electrical signal through the stylet and a shielded cable to the scanner, which results in appearance of a bright echo on the monitor at the location of the needle tip.
authors.affiliation: Department of Radiology, Mount Sinai Medical Center, City University of New York, NY 10029-6574.
authors.forename: F
authors.initials: F
authors.lastname: Winsberg
authors.forename: H A
authors.initials: HA
authors.lastname: Mitty
authors.forename: R S
authors.initials: RS
authors.lastname: Shapiro
authors.forename: H C
authors.initials: HC
authors.lastname: Yeh
mesh_terms: D001707:Biopsy, Needle / Q000295:instrumentation*; D006801:Humans; D014159:Transducers; D014463:Ultrasonography / Q000295:instrumentation*