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Abstract: Slide Presentations |

VIBRATION RESPONSE IMAGING (VRI) FOR OUTCOME ASSESSMENT AFTER BRONCHOSCOPIC INTERVENTIONS: AN INTERNATIONAL MULTICENTER STUDY FREE TO VIEW

Heinrich D. Becker, *; Herve Dutau; Teruomi Miyazawa, MD; Ali I. Musani, MD; Momen Wahidi, MD; Merav Gat, MSc
Author and Funding Information

Thoraxklinik, Heidelberg, Germany


Chest


Chest. 2009;136(4_MeetingAbstracts):39S. doi:10.1378/chest.136.4_MeetingAbstracts.39S-g
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Abstract

PURPOSE:  Interventional bronchoscopy gained increasing importance for treatment of central airway obstruction. Tools for outcome assessment (dyspnea score, PFT,x-ray/CT[RAD]) are unreliable or not applicable in emergencies. In an international multicenter study we proved the usefulness of VRI before and after interventions as shown in a pilot study.

METHODS:  The 40 sensors of the VRI register vibrations by breathing on the chest. A processor transforms the signals to real time grey scale images that are analyzed by quality and quantification. In 5 centers the VRI was analyzed before and after interventions (dilation, lasering/APC, stenting) for localization and success.

RESULTS:  In 86 subjects (36f/50m) with 98 sites of stenosis 93 procedures were performed. The obstruction was localized in 85% as compared to 70% by RAD. Outcome assessment was successful in 88% and superior to dyspnea score (67%), PFT (67%), and RAD (62%) and as good as all combined.

CONCLUSION:  The study confirmed the usefulness of VRI for localization and outcome assessment of bronchoscopic interventions in central airway stenosis. It is non-invasive, radiation free, readily available, cheap and can be repeatedly applied.

CLINICAL IMPLICATIONS:  The study confirmed that VRI may add to or even replace more invasive and costly methods for planning and assessment of interventions in central airway stenosis.

DISCLOSURE:  Heinrich Becker, Grant monies (from industry related sources) The study was supported by DeepBreeze Ltd., Or Akiva, Israel by providing the VRI devices and financially for logistics.; Consultant fee, speaker bureau, advisory committee, etc. HDB received finacial support for presentation at meetings; No Product/Research Disclosure Information

Tuesday, November 3, 2009

2:30 PM - 3:30 PM


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