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dc.contributor.authorCandefjord, Stefan
dc.contributor.authorNguyen, Linh
dc.contributor.authorBuendia, Ruben
dc.contributor.authorOropeza-Moe, Marianne
dc.contributor.authorAndersen, Nina Gjerde
dc.contributor.authorFhager, Andreas
dc.contributor.authorPersson, Mikael
dc.contributor.authorElam, Mikael
dc.contributor.authorOveland, Nils Petter
dc.identifier.citationCandefjord, S., Nguyen, L., Buendia, R., Oropeza-Moe, M., Andersen, N. G., Fhager, A., Persson, M., Elam, M., Oveland, N.P. (2021) A wearable microwave instrument can detect and monitor traumatic abdominal injuries in a porcine model. Scientific Reports, 11 (1), 23220 (2021) .en_US
dc.description.abstractAbdominal injury is a frequent cause of death for trauma patients, and early recognition is essential to limit fatalities. There is a need for a wearable sensor system for prehospital settings that can detect and monitor bleeding in the abdomen (hemoperitoneum). This study evaluates the potential for microwave technology to fill that gap. A simple prototype of a wearable microwave sensor was constructed using eight antennas. A realistic porcine model of hemoperitoneum was developed using anesthetized pigs. Ten animals were measured at healthy state and at two sizes of bleeding. Statistical tests and a machine learning method were used to evaluate blood detection sensitivity. All subjects presented similar changes due to accumulation of blood, which dampened the microwave signal (p<0.05). The machine learning analysis yielded an area under the receiver operating characteristic (ROC) curve (AUC) of 0.93, showing 100% sensitivity at 90% specificity. Large inter-individual variability of the healthy state signal complicated differentiation of bleedings from healthy state. A wearable microwave instrument has potential for accurate detection and monitoring of hemoperitoneum, with automated analysis making the instrument easy-to-use. Future hardware development is necessary to suppress measurement system variability and enable detection of smaller bleedings.en_US
dc.publisherSpringer Nature Switzerland AGen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleA wearable microwave instrument can detect and monitor traumatic abdominal injuries in a porcine modelen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.rights.holder© The Author(s) 2021en_US
dc.subject.nsiVDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Traumatologi: 783en_US
dc.source.journalScientific Reportsen_US
dc.source.articlenumber23220 (2021)en_US

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal