USE OF A HIGH-FREQUENCY ASPIRATION-BIOPSY TRANSDUCER FOR DIRECT ULTRASOUND-GUIDED AMNIOCENTESIS

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Abstract

The techniques and applications of amniocentesis performed with a new high-frequency aspiration-biopsy transducer are described in detail. The advantages of this technique are greatest in third-trimester patients where active fetal motion and diminished amniotic fluid volumes make unguided punctures difficult or impossible. The ability to visualize small-caliber needles within the fluid space further enhances the effectiveness of this technique.

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