Deformation Imaging in rheumatic heart disease patients relation to chronic information
Lobna Ali Ali Salem;
Abstract
cuterheumaticfever(ARF)isthesequelofuntreatedoropharyngeal infectionbygroupAhemolyticStreptococcus.Themostcommon manifestations are carditis, arthritis and chorea. Rheumatic heart disease (RHD)isaprogressivevalvulopathythatoccursinapproximately60%of thosepatientswithARF.Theprimarycardiacphenotypeisvalvulopathy, withthemitralvalvemostoftenaffectedandtheaorticvalvethenextmost
common(Yanagawa,2016).
The evaluation of contractile function with echocardiographyhas traditionallybeen limited to volumebased assessment of global systolic function with ejection fraction (EF)and ofsegmentalwall motion orvisual estimationof regionalthickening.These methodshave sufferedfromlackof reproducibility andstandardizationandaregenerally consideredtobe extremely sensitivetoloadingconditions.Theselimitationshaveledtoan interestin techniquesthatprovide more objectiveand reproducible measures of contractile function. Deformation imagingallowsfora moredirect evaluationofmyocardialchangesthroughthecardiaccycleby speckle trackinganalysis(Nascimento et al., 2016).
Inthe lastdecade newechocardiographic modalities, such asstrain (deformation)analysis,have beendeveloped,whichisconsideredone of the methodsfor quantifyingglobalandregional myocardialfunctionandcan detectregionalsystolic dysfunctionatanearlier subclinicalstage than conventionalechocardiography(Gunjan,2012).Strainiscurrentlymeasured by two methods: tissue Doppler imaging and speckle-tracking echocardiography. The latter method enables the assessment of strain
Summary and Conclusion
parametersindifferentdirectionsandrotationalLVfunction(Mizarienėet
al., 2012).
common(Yanagawa,2016).
The evaluation of contractile function with echocardiographyhas traditionallybeen limited to volumebased assessment of global systolic function with ejection fraction (EF)and ofsegmentalwall motion orvisual estimationof regionalthickening.These methodshave sufferedfromlackof reproducibility andstandardizationandaregenerally consideredtobe extremely sensitivetoloadingconditions.Theselimitationshaveledtoan interestin techniquesthatprovide more objectiveand reproducible measures of contractile function. Deformation imagingallowsfora moredirect evaluationofmyocardialchangesthroughthecardiaccycleby speckle trackinganalysis(Nascimento et al., 2016).
Inthe lastdecade newechocardiographic modalities, such asstrain (deformation)analysis,have beendeveloped,whichisconsideredone of the methodsfor quantifyingglobalandregional myocardialfunctionandcan detectregionalsystolic dysfunctionatanearlier subclinicalstage than conventionalechocardiography(Gunjan,2012).Strainiscurrentlymeasured by two methods: tissue Doppler imaging and speckle-tracking echocardiography. The latter method enables the assessment of strain
Summary and Conclusion
parametersindifferentdirectionsandrotationalLVfunction(Mizarienėet
al., 2012).
Other data
| Title | Deformation Imaging in rheumatic heart disease patients relation to chronic information | Other Titles | دراسة تصوير التعديل الشكلى للقلب فى مرضى أمراض القلب الروماتزمية وعلاقة ذلك بالالتهاب المزمن | Authors | Lobna Ali Ali Salem | Issue Date | 2016 |
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