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Jiri Votruba



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    MA 20 - Recent Advances in Pulmonology/Endoscopy (ID 685)

    • Event: WCLC 2017
    • Type: Mini Oral
    • Track: Pulmonology/Endoscopy
    • Presentations: 1
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      MA 20.04 - Inteligent Biopsy Device for SPN Diagnosis (ID 9771)

      14:30 - 16:15  |  Presenting Author(s): Jiri Votruba

      • Abstract
      • Presentation
      • Slides

      Background:
      Solitary pulmonary nodules are increasingly encountered in current medicine. There are interesting new technologies available for this difficult diagnostics category of pulmonary pathologies like endobronchial navigation techniques and transparietal CT guided biopsy. In order to increase diagnostic yield of those techniques precise biopsy instruments are needed.

      Method:
      We utilise new instrument based on near infrared diagnostics. This simple needle sheath can be used during routine bronchoscopy examination and enables simultaneous spectral measurement and obtaining of histology tissue samples in situ at the same time. This intelligent sheath with standard needle can be used both during fluoroscopy navigation and EBUS guided navigation to confirm correct biopsy instrument position during the sampling itself. According to our results diagnostic yield of navigation method is significantly increased using such device. Instrument itself consists of elastic tubing while along the length of tube on opposite sides of cross section perimeter there are two segments fixed with 6 optic microfibers covered with insulation as NIR spectroscopic probe. Core consists of the channel for of standard biopsy needle introduction. Instrument itself is introduced to the area of interest through the working channel of the bronchoscope.

      Result:
      We performed 40 consecutive examinations of SPN (diameter 1-3cm) using intelligent needle during navigational bronchoscopic procedure executing fluoroscopy and radial EBUS. Correct placement of biopsy instrument confirmed by NIR spectroscopy was possible in 32 cases. In all these cases positive cytology specimen containing diagnostic material was obtained.

      Conclusion:
      Intelligent NIR based biopsy needle appears to be good adjunct in the diagnosis of SPNs. More extensive studies are needed to prove diagnostic potency of this device.

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