Two‐Dimensional Ultrasound Speckle Tracking Imaging in Evaluation of Early Changes in Left Ventricular Diastolic Function in Patients with Essential Hypertension

Mu, Yuming; Qin, Chuan; Wang, Chunmei; Huojiaabudula, Guliqiman

doi:10.1111/j.1540-8175.2009.00984.x

Cited by 26 publications

(25 citation statements)

References 28 publications

(37 reference statements)

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“…Park et al 50 observed that both torsion and recoil were significantly increased in individuals with grade 1 diastolic dysfunction, when compared with healthy volunteers and patients with grades 2 and 3 diastolic dysfunction. Other studies showed reduction in the recoil rate and in the longitudinal strain velocity that precede alterations in systolic function evaluated by global longitudinal strain and LVEF 51,52 .…”

Section: Clinical Applicationsmentioning

confidence: 90%

Cardiac Mechanics Evaluated by Speckle Tracking Echocardiography

Abduch¹,

Alencar²,

Mathias³

et al. 2014

Arquivos Brasileiros De Cardiologia

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Natural myocardial markers, or speckles, originated from constructive and destructive interference of ultrasound in the tissues may provide early diagnosis of myocardial changes and be used in the prediction of some cardiac events. Due to its relatively temporal stability, speckles can be tracked by dedicated software along the cardiac cycle, enabling the analysis of the systolic and diastolic function. They are identified by either conventional 2D grey scale and by 3D echo, conferring independence of the insonation angle, thus allowing assessment of cardiac mechanics in the three spatial planes: longitudinal, circumferential, and radial. The purposes of the present paper are: to discuss the role and the meaning of cardiac strain obtained by speckle tracking during the evaluation of cardiac physiology and to discuss clinical applications of this novel echocardiographic technology.

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Section: Clinical Applicationsmentioning

confidence: 90%

Cardiac Mechanics Evaluated by Speckle Tracking Echocardiography

Abduch¹,

Alencar²,

Mathias³

et al. 2014

Arquivos Brasileiros De Cardiologia

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“…This technique permits the detection of early LV diastolic function changes in hypertension, 33 and also reveals that, in hypertensive patients free from clinical manifestations of HF, the earliest myocardial impairment involves the longitudinal fibers. This technique permits the detection of early LV diastolic function changes in hypertension, 33 and also reveals that, in hypertensive patients free from clinical manifestations of HF, the earliest myocardial impairment involves the longitudinal fibers.…”

Section: Discussionmentioning

confidence: 99%

Left Ventricular Function in Hypertension: New Insight by Speckle Tracking Echocardiography

Imbalzano¹,

et al. 2011

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“…Redukcija ranog dijastolnog SR takođe ide sa globalnim promenama dijastolnog punjenja i ukazuje na oštećenu relaksaciju miokarda leve komore. 17,18,19 Cilj istraživanja je bio da se ispitaju mogućnosti strain imaging ehokardiografije u analizi segmentne sistolne i dijastolne funkcije kod pacijenata sa novootkrivenom hipertenzijom, i da se utvrdi primenjivost nove metode u rutinskoj kliničkoj praksi.…”

Section: Slikaunclassified

Analysis of segmental myocardial mechanics in patients with hypertension

Lončarević¹,

Lončarević²

2013

Srce i krvni sudovi

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Originalni rad UKS CSSUDRUŽENJE KARDIOLOGA SRBIJE CARDIOLOGy SOCIEty Of SERBIA e hokardiografija je posle EKG-a najčešće korišćena dijagnostička metoda u kardiologiji. Ona igra glavnu ulogu u proceni funkcije leve komore, evaluaciji valvularnih bolesti, kongenitalnih bolesti srca, tromboembolija i ispitivanju prirode bola u grudima. 1Dijastolna disfunkcija (DD) označava smanjenu elastičnost leve komore. Prisustvo DD identifikuje pacijente sa povećanim kardiovaskularnim rizikom. Dijagnoza DD postavlja se invazivnim putem ako se nađe plućni kapilarni pritisak >12 mm Hg i enddijastolni pritisak leve komore > 16 mm Hg.2,3 Prema profilu transmitralnog protoka DD se stepenuje kao: I (blaga), II umerena (pseudonormalizacija), III teška (restriktivno punjenje). 4Hipertenzija predstavlja jedan od najčešćih uzroka DD i glavni činilac u patogenezi nastanka srčane slabosti.5 Poremećena segmentna relaksacija javlja se kao prvi znak strukturnih promena, koje prethode remodelovanju i hipertrofiji leve komore. 6,7 Pacijenti sa hipertenzijom imaju u početnom stadijumu izrazitiju segmentnu DD u bazalnim delovima septuma i inferiornog zida dok je lateralni zid nešto otporniji. Dijastolna disfunkcija vremenom progredira na ostale segmente a globalna disfunkcija postaje merljiva kad bude zahvaćeno više od 50 % segmenata leve komore. 8,9Strain rate imaging je nova ultrazvučna tehnika koja omogućuje procenu regionalne funkcije leve komore u realnom vremenu.10 Strain u svakodnevnom govoru na engleskom jeziku označava "istezanje", dok u naučnom smislu podrazumeva "deformaciju". Miokardni strain (ε) je mera aktuelne deformacije u specifičnoj regiji tkiva , dok je strain rate (SR), jednostavno stepen te deformacije u jedinici vremena. Strain se može izraču- 11,12Početna strain merenja zasnivala su se na tkivnom dopleru (TDI), bila su zavisna od ugla posmatranja i ograničena na merenja longitudinalne i radijalne deformacije. Nova speckle tracking tehnika (praćenja markiranih tačkica) je dvodimenzionalna i omogućuje merenja u cirkumferencijalnoj, radijalnoj i longitudinalnoj ravni. 13,14Primena strain ehokardiografije u evaluaciji hipertenzivnih pacijenata omogućuje napredak u ranoj identifikaciji funkcionalnih abnormalnosti koje se ne mogu detektovati konvencionalnim metodama. 15,16 Redukovani maksimalni strain u pojedinim segmentima miokarda sugeriše da je redukovana deformacija leve komore kao posledica strukturnih promena i ima uticaj na globalnu Uvod: Segmentna dijastolna i sistolna disfunkcija leve komore, uzrokovane hipertenzijom i mogu se pravovremeno dijagnostikovati strain rate imaging ehokardiografijom. Cilj rada je bio da se ispitaju mogućnosti strain imaging ehokardiografije u analizi segmentne sistolne i dijastolne funkcije kod pacijenata sa hipertenzijom. Metode: Ispitivana su 64 pacijenta, 32 novootkrivena hipertoničara sa očuvanom globalnom sistolnom i dijastolnom funkcijom, bez drugih kardioloških oboljenja i 32 zdrave osobe kontrolne grupe. Svim pacijentima rađena je dvodimenzionalna ehokardiografija i strain imaging meto...

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Two‐Dimensional Ultrasound Speckle Tracking Imaging in Evaluation of Early Changes in Left Ventricular Diastolic Function in Patients with Essential Hypertension

Abstract: STI may be helpful for the detection of early changes in left ventricular diastolic function in patients with EH.

Cited by 26 publications

References 28 publications

Cardiac Mechanics Evaluated by Speckle Tracking Echocardiography

Cardiac Mechanics Evaluated by Speckle Tracking Echocardiography

Left Ventricular Function in Hypertension: New Insight by Speckle Tracking Echocardiography

Analysis of segmental myocardial mechanics in patients with hypertension

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