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Pàgina inicial > Articles > Articles publicats > Ex vivo assessment and in vivo validation of non-invasive stent monitoring techniques based on microwave spectrometry |
Data: | 2018 |
Resum: | Some conditions are well known to be directly associated with stent failure, including in-stent re-occlusion and stent fracture. Currently, identification of these high-risk conditions requires invasive and complex procedures. This study aims to assess microwave spectrometry (MWS) for monitoring stents non-invasively. Preliminary ex vivo data are presented to move to in vivo validation. Fifteen mice were assigned to receive subcutaneous stent implantations (n = 10) or sham operations (n = 5). MWS measurements were carried out at 0, 2, 4, 7, 14, 22, and 29 days of follow-up. Additionally, 5 stented animals were summited to micro-CT analyses at the same time points. At 29 days, 3 animals were included into a stent fracture subgroup and underwent a last MWS and micro-CT analysis. MWS was able to identify stent position and in-stent stenosis over time, also discerning significant differences from baseline measures (P < 0. 001). Moreover, MWS identified fractured vs. non-fractured stents in vivo. Taken together, MWS emerges as a non-invasive, non-ionizing alternative for stent monitoring. MWS analysis clearly distinguished between in-stent stenosis and stent fracture phenomena. |
Ajuts: | Ministerio de Economía y Competitividad TEC2013-49465-EXP Ministerio de Economía y Competitividad SAF2014-59892-R Agència de Gestió d'Ajuts Universitaris i de Recerca 2017-SGR-00483 Instituto de Salud Carlos III RD16/0011/0006 Instituto de Salud Carlos III CB16/11/00403 Ministerio de Economía y Competitividad RYC-2014-16515 Ministerio de Economía y Competitividad SEV-2015-0496 Agencia Estatal de Investigación MAT2017-85232-R |
Nota: | Altres ajuts: Fundació La MARATÓ de TV3 (20153530/31), Unidad de Excelencia Maria de Maeztu (MDM2016-0600). This work has been developed in the context of AdvanceCat with the support of ACCIÓ (Catalonia Trade & Investment; Generalitat de Catalunya) |
Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió publicada |
Publicat a: | Scientific reports, Vol. 8 (october 2018) , ISSN 2045-2322 |
8 p, 1.6 MB |