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Initial experience using 4D electromagnetic navigation bronchoscopy system with tip tracked instruments for localization of peripheral lung nodules

STUDY
Flenaugh EL, Mohammed KH. Initial experience using 4D electromagnetic navigation bronchoscopy system with tip tracked instruments for localization of peripheral lung nodules. The Internet Journal of Pulmonary Medicine. 2016. Vol 18. Number 1.

OVERVIEW

  • + Study evaluated Veran’s proprietary vPad™, respiratory gating and Always-On Tip Tracked® instruments
  • + First 44 consecutive patients referred with CT scans positive for small PPNs
  • + Average nodule size was 22.1mm
  • + 47 of 71 lesions were <20mm in diameter

OBJECTIVE
Measure diagnostic yield using Veran’s 4D EMN and determine system efficacy.

90.2%

diagnostic yield using SPiN

AUTHORS’ CONCLUSION
“Without using 4D respiratory tracking, the variation in inspiration/expiration would have contributed to completely missing the target. While significant movement relative to the size of the nodules being targeted was measured between the INSP and EXP state, we found the SPiNDrive system to be very accurate in compensating for this motion.”

KEY FINDINGS

  • + EMN with Veran’s proprietary vPad™, respiratory gating and Always-On Tip Tracked® instruments resulted in a high diagnostic yield of 90.2% with no complications
  • + Veran’s inspiration/expiration CT scan protocol provides a more accurate map for navigation
  • + Significant nodule movement:
    •  Average nodule movement: 12.3mm +/- 7.3mm
    •  Upper lobe movement: 10.6mm +/- 6.8mm
    • Lower lobe movement: 14.0mm +/- 7.3mm

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