Use of an acoustic transponder for US visualization of biopsy needles.
case_series · Level IV
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- Record sourced from PubMed, PMID 1871312.
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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.
Medical subject headings
- Biopsy, Needle
- Ultrasonography