RT Journal Article
SR Electronic
T1 Non-invasive, non-contact measurement of tidal breathing parameters in children aged 3-17 years using structured light plethysmography (SLP)
JF European Respiratory Journal
JO Eur Respir J
FD European Respiratory Society
SP PA3643
DO 10.1183/13993003.congress-2015.PA3643
VO 46
IS suppl 59
A1 Hmeidi, Hamza
A1 Chadwick, Ed
A1 Lenney, Warren
A1 Gilchrist, Francis
A1 Alexander, John
A1 Wilson, Rachel
A1 Motamedi-Fakr, Shayan
A1 Iles, Richard
YR 2015
UL https://publications.ersnet.org//content/46/suppl_59/PA3643.abstract
AB Introduction: Measurement of lung function aids diagnosis and treatment of respiratory conditions, but spirometry is not possible in young children. SLP is a novel technique for measuring chest and abdominal wall movement during tidal breathing that would allow us to obtain measurements in patients where this is not currently possible.Aims: We investigated the use of SLP for measuring tidal breathing in children aged 3-17 years.Methods: Using a Thora-3Di™ (PneumaCare, Cambridge, UK), a structured light pattern was projected onto the chest and abdomen of a seated child. Movement with respiration is captured using stereo-photogrammetry to produce a trace of tidal breathing. Clinically-useful respiratory indices can be calculated such as respiratory rate (RR), inspiratory time ratio (Ti/Ttot) and ratio of inspiratory to expiratory flow at 50% of tidal movement (IE50). The relative contribution of chest wall movement to total movement (RC2Tot) can also be captured.Results: 44 children (22 female) aged 3-17 years underwent assessment with SLP. Normative data are summarized in the table below. View this table:Tidal breathing dataConclusion: We have demonstrated the feasibility of obtaining objective measures of tidal breathing using SLP in children.