Tissue attenuation characteristics of acoustic emission signals for wear and degradation of total hip arthoplasty implants

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dc.contributor.authorKhan-Edmundson, A.
dc.contributor.authorRodgers, G.W.
dc.contributor.authorWoodfield, T.B.F.
dc.contributor.authorHooper, G.J.
dc.contributor.authorChase, Geoff
dc.date.accessioned2013-01-16T22:30:14Z
dc.date.available2013-01-16T22:30:14Z
dc.date.issued2012en
dc.description6-pagesen
dc.description.abstractRecent research has investigated the use of Acoustic Emission (AE) monitoring of patients with Total Joint Replacement (TJR) implants. This technique involves using a set of four passive ultrasonic receivers to monitor the acoustic events that are created when a TJR implant is articulated through a range of motion. Both ¬in-vitro and in-vivo monitoring of implants is possible. The soft-tissue attenuation characteristics are a very important aspect of how these two signal types are related as the aim of AE monitoring is to provide in-vivo diagnosis of implant degradation. This manuscript presents the results of in vivo monitoring of patients with Total Hip Replacement (THR) implants. The corresponding Bode plots are presented to approximate the soft tissue attenuation characteristics. Overall averages are taken across 45 patient data sets and each of the four sensors, located against the skin surface, from the greater trochanter to mid-femur. Each sensor set is also analysed individually to delineate different tissues attenuation at the different locations. These results of this research can be used to determine the maximum likely frequency of interest present on the skin surface during AE monitoring, even if higher frequencies may be observed in-vitro.en
dc.identifier.citationKhan-Edmundson, A., Rodgers, G.W., Woodfield, T.B.F., Hooper, G.J., Chase, J.G. (2012) Tissue attenuation characteristics of acoustic emission signals for wear and degradation of total hip arthoplasty implants. Budapest, Hungary: 8th IFAC Symposium on Biological and Medical Systems (BMS12), 29-31 Aug 2012. Biological and Medical Systems, 8, 1, 355-360.en
dc.identifier.doihttps://doi.org/10.3182/20120829-3-HU-2029.00046
dc.identifier.urihttp://hdl.handle.net/10092/7362
dc.language.isoen
dc.publisherUniversity of Canterbury. Mechanical Engineeringen
dc.rights.urihttps://hdl.handle.net/10092/17651en
dc.subjectPatient Testingen
dc.subjectTissue Attenuationen
dc.subjectBiomedical Systemsen
dc.subjectVibration Measurementen
dc.subjectVibration Monitoringen
dc.subjectUltrasonic Transducersen
dc.subjectSignal Analysisen
dc.subjectBode Ploten
dc.subjectFrequency Spectrumen
dc.subjectAttenuation Observationsen
dc.subjectAcoustic Emissionsen
dc.subjectOrthopaedic Implantsen
dc.subject.anzsrcField of Research::11 - Medical and Health Sciences::1103 - Clinical Sciences::110314 - Orthopaedicsen
dc.subject.anzsrcFields of Research::40 - Engineering::4003 - Biomedical engineering::400308 - Medical devicesen
dc.titleTissue attenuation characteristics of acoustic emission signals for wear and degradation of total hip arthoplasty implantsen
dc.typeConference Contributions - Published
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