简介：Theunpredictableruptureofsaccularaneurysmsespeciallyoftheintracerebralaneurysmisaknottyproblemthatalwaysresultsinhighmortality.Traditionaldiagnosisofmedicalimages,whichgivestheaneurysmsizeandcompareswithaspeculatedcriticalsizefromclinicalstatistics,wasdemonstratedinadequatetoforecastingrupture.Here,weproposeanewdetectingstrategythatusesadielectricelastomer(DE)capacitancesensortomonitorthegrowthofsaccularaneurysmsanddeliverboththewallstressandgeometricparameters.Basedontheelasticgrowththeorytogetherwiththefinitedeformationanalyses,thecorrelationbetweenthereal-timeoutputcapacitanceoftheDEsensorandthewallstressand/orgeometryofananeurysmisderived.Comparedtoclinicstatisticsandbiomechanicssimulations,thewallstressandgeometricsizemaybeusedascombinedindicatorstoassesstheruptureriskofasaccularaneurysm.Numericalresultsshowthatanoutputrelativecapacitanceof30indicatesahighriskofrupture.Finally,thesensitivityandresolutionoftheDEsensorareprovedadequatelyhighformonitoringthegrowthstateandevaluatingtheruptureriskofasaccularaneurysm.
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