Vibration Response Imaging: evaluation of rater agreement in healthy subjects and subjects with pneumonia

<p>Abstract</p> <p>Background</p> <p>We evaluated pulmonologists variability in the interpretation of Vibration response imaging (VRI) obtained from healthy subjects and patients hospitalized for community acquired pneumonia.</p> <p>Methods</p> <p&g...

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Main Authors: Makris Demosthenes, Kerenidi Theodora, Triantaris Apostolos, Zygoulis Paris, Preau Sebastien, Daenas Christos, Bartziokas Konstantinos, Gourgoulianis Konstantinos I, Daniil Zoe
Format: Article
Language:English
Published: BMC 2010-03-01
Series:BMC Medical Imaging
Online Access:http://www.biomedcentral.com/1471-2342/10/6
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author Makris Demosthenes
Kerenidi Theodora
Triantaris Apostolos
Zygoulis Paris
Preau Sebastien
Daenas Christos
Bartziokas Konstantinos
Gourgoulianis Konstantinos I
Daniil Zoe
author_facet Makris Demosthenes
Kerenidi Theodora
Triantaris Apostolos
Zygoulis Paris
Preau Sebastien
Daenas Christos
Bartziokas Konstantinos
Gourgoulianis Konstantinos I
Daniil Zoe
author_sort Makris Demosthenes
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>We evaluated pulmonologists variability in the interpretation of Vibration response imaging (VRI) obtained from healthy subjects and patients hospitalized for community acquired pneumonia.</p> <p>Methods</p> <p>The present is a prospective study conducted in a tertiary university hospital. Twenty healthy subjects and twenty three pneumonia cases were included in this study. Six pulmonologists blindly analyzed images of normal subjects and pneumonia cases and evaluated different aspects of VRI images related to the quality of data aquisition, synchronization of the progression of breath sound distribution and agreement between the maximal energy frame (MEF) of VRI (which is the maximal geographical area of lung vibrations produced at maximal inspiration) and chest radiography. For qualitative assessment of VRI images, the raters' evaluations were analyzed by degree of consistency and agreement.</p> <p>Results</p> <p>The average value for overall identical evaluations of twelve features of the VRI image evaluation, ranged from 87% to 95% per rater (94% to 97% in control cases and from 79% to 93% per rater in pneumonia cases). Inter-rater median (IQR) agreement was 91% (82-96). The level of agreement according to VRI feature evaluated was in most cases over 80%; intra-class correlation (ICC) obtained by using a model of subject/rater for the averaged features was overall 0.86 (0.92 in normal and 0.73 in pneumonia cases).</p> <p>Conclusions</p> <p>Our findings suggest good agreement in the interpretation of VRI data between different raters. In this respect, VRI might be helpful as a radiation free diagnostic tool for the management of pneumonia.</p>
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spelling doaj.art-9d03ebdfea3a40aeb2ae0078ebc7b2f12022-12-21T19:14:32ZengBMCBMC Medical Imaging1471-23422010-03-01101610.1186/1471-2342-10-6Vibration Response Imaging: evaluation of rater agreement in healthy subjects and subjects with pneumoniaMakris DemosthenesKerenidi TheodoraTriantaris ApostolosZygoulis ParisPreau SebastienDaenas ChristosBartziokas KonstantinosGourgoulianis Konstantinos IDaniil Zoe<p>Abstract</p> <p>Background</p> <p>We evaluated pulmonologists variability in the interpretation of Vibration response imaging (VRI) obtained from healthy subjects and patients hospitalized for community acquired pneumonia.</p> <p>Methods</p> <p>The present is a prospective study conducted in a tertiary university hospital. Twenty healthy subjects and twenty three pneumonia cases were included in this study. Six pulmonologists blindly analyzed images of normal subjects and pneumonia cases and evaluated different aspects of VRI images related to the quality of data aquisition, synchronization of the progression of breath sound distribution and agreement between the maximal energy frame (MEF) of VRI (which is the maximal geographical area of lung vibrations produced at maximal inspiration) and chest radiography. For qualitative assessment of VRI images, the raters' evaluations were analyzed by degree of consistency and agreement.</p> <p>Results</p> <p>The average value for overall identical evaluations of twelve features of the VRI image evaluation, ranged from 87% to 95% per rater (94% to 97% in control cases and from 79% to 93% per rater in pneumonia cases). Inter-rater median (IQR) agreement was 91% (82-96). The level of agreement according to VRI feature evaluated was in most cases over 80%; intra-class correlation (ICC) obtained by using a model of subject/rater for the averaged features was overall 0.86 (0.92 in normal and 0.73 in pneumonia cases).</p> <p>Conclusions</p> <p>Our findings suggest good agreement in the interpretation of VRI data between different raters. In this respect, VRI might be helpful as a radiation free diagnostic tool for the management of pneumonia.</p>http://www.biomedcentral.com/1471-2342/10/6
spellingShingle Makris Demosthenes
Kerenidi Theodora
Triantaris Apostolos
Zygoulis Paris
Preau Sebastien
Daenas Christos
Bartziokas Konstantinos
Gourgoulianis Konstantinos I
Daniil Zoe
Vibration Response Imaging: evaluation of rater agreement in healthy subjects and subjects with pneumonia
BMC Medical Imaging
title Vibration Response Imaging: evaluation of rater agreement in healthy subjects and subjects with pneumonia
title_full Vibration Response Imaging: evaluation of rater agreement in healthy subjects and subjects with pneumonia
title_fullStr Vibration Response Imaging: evaluation of rater agreement in healthy subjects and subjects with pneumonia
title_full_unstemmed Vibration Response Imaging: evaluation of rater agreement in healthy subjects and subjects with pneumonia
title_short Vibration Response Imaging: evaluation of rater agreement in healthy subjects and subjects with pneumonia
title_sort vibration response imaging evaluation of rater agreement in healthy subjects and subjects with pneumonia
url http://www.biomedcentral.com/1471-2342/10/6
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