Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/113660
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Batista, Ana | - |
dc.contributor.author | Serranho, Pedro | - |
dc.contributor.author | Santos, Mário | - |
dc.contributor.author | Correia, Carlos | - |
dc.contributor.author | Domingues, José P. | - |
dc.contributor.author | Loureiro, Custódio | - |
dc.contributor.author | Cardoso, João Manuel | - |
dc.contributor.author | Barbeiro, Sílvia | - |
dc.contributor.author | Morgado, Miguel | - |
dc.contributor.author | Bernardes, Rui | - |
dc.date.accessioned | 2024-02-26T08:36:37Z | - |
dc.date.available | 2024-02-26T08:36:37Z | - |
dc.date.issued | 2023-04-13 | - |
dc.identifier.issn | 1424-8220 | pt |
dc.identifier.uri | https://hdl.handle.net/10316/113660 | - |
dc.description.abstract | Robust methods to compute tissue displacements in optical coherence elastography (OCE) data are paramount, as they play a significant role in the accuracy of tissue elastic properties estimation. In this study, the accuracy of different phase estimators was evaluated on simulated OCE data, where the displacements can be accurately set, and on real data. Displacement (∆d) estimates were computed from (i) the original interferogram data (Δφori) and two phase-invariant mathematical manipulations of the interferogram: (ii) its first-order derivative (Δφd) and (iii) its integral (Δφint). We observed a dependence of the phase difference estimation accuracy on the initial depth location of the scatterer and the magnitude of the tissue displacement. However, by combining the three phase-difference estimates (Δdav), the error in phase difference estimation could be minimized. By using Δdav, the median root-mean-square error associated with displacement prediction in simulated OCE data was reduced by 85% and 70% in data with and without noise, respectively, in relation to the traditional estimate. Furthermore, a modest improvement in the minimum detectable displacement in real OCE data was also observed, particularly in data with low signal-to-noise ratios. The feasibility of using Δdav to estimate agarose phantoms' Young's modulus is illustrated. | pt |
dc.language.iso | eng | pt |
dc.publisher | MDPI | pt |
dc.relation | UIDB/4950/2020 | pt |
dc.relation | UIDP/4950/2020 | pt |
dc.rights | openAccess | pt |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt |
dc.subject | optical coherence elastography | pt |
dc.subject | phase-resolved OCE | pt |
dc.subject | displacement estimation | pt |
dc.subject | Young’s modulus | pt |
dc.subject.mesh | Elastic Modulus | pt |
dc.subject.mesh | Phantoms, Imaging | pt |
dc.subject.mesh | Tomography, Optical Coherence | pt |
dc.subject.mesh | Elasticity Imaging Techniques | pt |
dc.title | Phase-Resolved Optical Coherence Elastography: An Insight into Tissue Displacement Estimation | pt |
dc.type | article | - |
degois.publication.firstPage | 3974 | pt |
degois.publication.issue | 8 | pt |
degois.publication.title | Sensors | pt |
dc.peerreviewed | yes | pt |
dc.identifier.doi | 10.3390/s23083974 | pt |
degois.publication.volume | 23 | pt |
dc.date.embargo | 2023-04-13 | * |
uc.date.periodoEmbargo | 0 | pt |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.openairetype | article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | Com Texto completo | - |
crisitem.author.researchunit | CNC - Center for Neuroscience and Cell Biology | - |
crisitem.author.researchunit | CNC - Center for Neuroscience and Cell Biology | - |
crisitem.author.researchunit | CEMMPRE - Centre for Mechanical Engineering, Materials and Processes | - |
crisitem.author.researchunit | LIP – Laboratory of Instrumentation and Experimental Particle Physics | - |
crisitem.author.researchunit | CMUC - Centre for Mathematics of the University of Coimbra | - |
crisitem.author.researchunit | CIBIT - Coimbra Institute for Biomedical Imaging and Translational Research | - |
crisitem.author.orcid | 0000-0002-5672-8266 | - |
crisitem.author.orcid | 0000-0003-2176-3923 | - |
crisitem.author.orcid | 0000-0002-0188-7761 | - |
crisitem.author.orcid | 0000-0002-8832-8208 | - |
crisitem.author.orcid | 0000-0002-2651-5083 | - |
crisitem.author.orcid | 0000-0002-6677-2754 | - |
Appears in Collections: | FMUC Medicina - Artigos em Revistas Internacionais FCTUC Matemática - Artigos em Revistas Internacionais FCTUC Eng.Electrotécnica - Artigos em Revistas Internacionais FCTUC Física - Artigos em Revistas Internacionais I&D CIBIT - Artigos em Revistas Internacionais |
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PhaseResolved-Optical-Coherence-Elastography-An-Insight-into-Tissue-Displacement-EstimationSensors.pdf | 4.91 MB | Adobe PDF | View/Open |
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