For biopsies under continuous sonographic and visual control, there are three different ways in which real-time monitoring can be accomplished, depending on how the needle is oriented with respect to the ultrasound beam or the imaging plane of the transducer. The old practice of using a static scanner with a perforated biopsy transducer is too imprecise and is now considered obsolete.
KeywordsBiopsy Needle Fine Needle Ultrasound Beam Sector Scanner Sonographic Guidance
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