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EUS Needle Identification Comparison and Evaluation study (with videos).

Shou-Jiang Tang1, Andreas S Vilmann2, Adrian Saftoiu3

  • 1Division of Digestive Diseases, Department of Medicine, University of Mississippi Medical Center, Jackson, Mississippi, USA.

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Summary
This summary is machine-generated.

Bench testing revealed significant differences in echogenicity among endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) needles. A prototype needle with polymeric coating demonstrated superior visualization, outperforming all commercial options.

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Area of Science:

  • Gastroenterology
  • Medical Imaging
  • Endoscopic Ultrasound (EUS)

Background:

  • Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) is a common procedure.
  • Optimal visualization of the needle during EUS-FNA is crucial for successful interventions.
  • Previous direct comparisons of commercially available EUS-FNA needles' echogenicity are lacking.

Purpose of the Study:

  • To conduct bench-top testing and direct comparison of commonly used EUS-FNA needles.
  • To evaluate the inherent echogenicity of various EUS-FNA needles.
  • To provide data for clinical guidance and inform future device development.

Main Methods:

  • Bench-top testing and comparative analysis of 8 standard 22-gauge EUS-FNA needles and 2 prototype needles.
  • Standardized video recording of needle performance.
  • Blinded evaluation by 43 EUS endoscopists and 17 GI radiologists.

Main Results:

  • No significant differences in needle ratings between endoscopists and radiologists.
  • One prototype needle, featuring echogenic polymer coating, significantly outperformed all other needles.
  • Among commercial needles, EchoTip Ultra and ClearView were rated highest; EZ Shot 2 performed lowest.

Conclusions:

  • EUS-FNA needles possess distinct, inherent echogenic properties recognized by both endoscopists and radiologists.
  • Needles with full-shaft polymeric echogenic coating show promise for enhanced visualization during EUS-FNA procedures.