A Novel Approach to Assess Aortic Stiffness Related to Changes in Aging Using a Two‐Dimensional Strain Imaging

Oishi, Yoshifumi; Mizuguchi, Yukio; Miyoshi, Hirokazu; Iuchi, Arata; Nagase, Norio; Oki, Takashi

doi:10.1111/j.1540-8175.2008.00725.x

Cited by 65 publications

(87 citation statements)

References 31 publications

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“…Arterial stiffness is one of the earliest detectable manifestations of adverse structural and functional changes within vascular walls. Stiffness increases with age in relatively healthy individuals and in the presence of hypertension, diabetes, and obesity [9]. This degenerative process is then bound to influence 2D-ST echocardiographic vascular mechanics [9].…”

Section: Discussionmentioning

confidence: 99%

“…Stiffness increases with age in relatively healthy individuals and in the presence of hypertension, diabetes, and obesity [9]. This degenerative process is then bound to influence 2D-ST echocardiographic vascular mechanics [9]. In graphic depiction of the SR curve, circumferential SR assumes an early positive value during LV systole, as vessel wall expands to accommodate vascular flow.…”

Section: Discussionmentioning

confidence: 99%

“…The tracking process and conversion to Lagrangian strains were performed offline, using dedicated software. CAASR curves generated here were aligned with those generated elsewhere [6,9] and included a positive early systolic peak. Global CAASR was then calculated as the mean of peak values for the six segments ( Fig.…”

Section: Two-dimensional Speckle-tracking Strain Echocardiographymentioning

confidence: 99%

“…A number of speckle-tracking algorithms have been developed, albeit aimed primarily at cardiac applications [7,8]. Since 2008, 2D-ST studies have proved successful in assessing local vascular wall properties of proximal elastic arteries [9][10][11]. Apart from circumferential vascular e, the rate of deformation, named the circumferential SR is other published index of vascular stiffening and aging [9].…”

Section: Introductionmentioning

confidence: 99%

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Circumferential vascular strain rate to estimate vascular load in aortic stenosis: a speckle tracking echocardiography study

Teixeira

Monteiro

Baptista

et al. 2015

Int J Cardiovasc Imaging

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Evaluation of vascular mechanics through twodimensional speckle-tracking (2D-ST) echocardiography is a feasible and accurate approach for assessing vascular stiffening. Degenerative aortic stenosis (AS) is currently considered a systemic vascular disease where rigidity of arterial walls increases. To assess the circumferential ascending aorta strain rate (CAASR) in thoracic aortas of patients with AS, applying 2D-ST technology. 45 patients with indexed aortic valve areas (iAVA) B0.85 cm 2 /m 2 were studied. Global CAASR served to assess vascular deformation. Clinical, echocardiographic, and non-invasive hemodynamic data were collected. A follow up (955 days) was also performed. Average age of the cohort was 76. ± 10.3 years, with gender balance. Mean iAVA was 0.43 ± 0.15 cm 2 /m 2 . Waveforms adequate for determining CAASR were found in 246 (91 %) of the 270 aortic segments evaluated, for a mean global CAASR of 0.74 ± 0.26 s -1 . Both intra-and inter-observer variability of global CAASR were deemed appropriate. CAASR correlated significantly with age (r = -0.49, p \ 0.01), the stiffness index (r = -0.59, p \ 0.01), systemic arterial compliance and total vascular resistance. There was a significant positive correlation between CAASR, body surface area (BSA), iAVA, and a negative relationship with valvulo-arterial impedance and E/e' ratio (r = -0.37, p = 0.01). The stiffness index was (b = -0.41, p \ 0.01) independently associated with CAASR, in a model adjusted for age, BSA, iAVA and E/e'. Patients with a baseline CAASR B0.66 s -1 had a worse long-term outcome (survival 52.4 vs. 83.3 %, Log Rank p = 0.04). CAASR is a promising echocardiographic tool for studying the vascular loading component of patients with AS.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Two-dimensional Speckle-tracking Strain Echocardiographymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Circumferential vascular strain rate to estimate vascular load in aortic stenosis: a speckle tracking echocardiography study

Teixeira

Monteiro

Baptista

et al. 2015

Int J Cardiovasc Imaging

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“…[13][14][15][16] Though STI was initially developed to assess ventricular function, STI technology has also been used to evaluate the elastic properties of the carotid artery and the thoracic and abdominal aorta. [17][18][19] To date, studies attempting to use STI to measure proximal aortic compliance are lacking. The objective of our study was to determine 1) if STI can be used to quantify proximal aortic compliance and 2) if decreased aortic compliance determined by STI will reproduce a previously reported correlation with diastolic function.…”

Section: Résumémentioning

confidence: 99%

Proximal aortic compliance and diastolic function assessed by speckle tracking imaging

Gregory

Dobson

2013

Can J Anesth/J Can Anesth

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Purpose Speckle tracking imaging (STI) is a recent technique that evaluates an echocardiographic image throughout the cardiac cycle and provides dynamic variables such as tissue velocities and strain rates. The objective of our study was to determine 1) if STI can be used to quantify proximal aortic compliance and 2) if decreased aortic compliance determined by STI will reproduce the previously reported correlation with diastolic function. Methods This was a retrospective observational case series using previously obtained intraoperative transesophageal images. Diastolic performance was quantified by STI-based longitudinal velocities of the basal-septal and basal-lateral walls of the left ventricle in early diastole (LV E 0 ). Change in proximal aortic volume was calculated using STI to measure peak longitudinal and radial velocities in early diastole. After normalizing for mean arterial pressure, compliance was calculated and then compared with basal-septal and basal-lateral LV E 0 using single regression analysis.Results Twenty patients were included in our analysis. Linear regression of basal-septal LV E 0 and basal-lateral LV E 0 vs proximal aortic compliance during diastole each resulted in an R 2 value of 0.26 (P \ 0.05). Conclusion Speckle tracking can be used to describe the physical motion of the aortic wall and to calculate its compliance. We confirm that variation in diastolic function can be attributed, in part, to aortic compliance. Our novel approach of measuring compliance throughout the cardiac cycle, isolating radial and longitudinal contributions, and evaluating previously obtained images retrospectively provides advantages over previously reported measures of aortic compliance. Speckle tracking promises new insights into ventricular function, aortic mechanics, and the interaction between these structures. RésuméObjectif L'imagerie de suivi de pixel, ou speckle tracking imaging (STI) en anglais, est une technique re´cente qui permet d'e´valuer une image e´chocardiographique tout au long du cycle cardiaque et d'obtenir des variables dynamiques telles que les ve´locite´s tissulaires et les vitesses de de´formation. L'objectif de notre e´tude e´tait de de´terminer si 1) la STI pouvait eˆtre utilise´e pour quantifier la compliance de l'aorte proximale, et si 2) une compliance aortique re´duite telle que de´termine´e par la STI reproduisait la corre´lation avec la fonction diastolique rapporte´e pre´ce´demment. Méthode Cette e´tude est une se´rie de cas observationnelle re´trospective se fondant sur des images transoesophagiennes perope´ratoires obtenues par le passe´. La performance diastolique a e´te´quantifie´e par les ve´locite´s longitudinales fonde´es sur la STI des parois basales septales et basales late´rales du ventricule gauche en de´but de diastole (LV E 0 ). Les changements de volume de l'aorte proximale ont e´teć alcule´s à l'aide de la STI afin de mesurer les ve´locite´s

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Evaluation of abdominal aortic elasticity by strain rate imaging in patients with type 2 diabetes mellitus

Liu

Wang

et al. 2014

J of Clinical Ultrasound

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A Novel Approach to Assess Aortic Stiffness Related to Changes in Aging Using a Two‐Dimensional Strain Imaging

Abstract: The aortic circumferential strain and strain rate measured by 2D strain imaging allow simple and accurate determination of the aortic stiffness.

Cited by 65 publications

References 31 publications

Circumferential vascular strain rate to estimate vascular load in aortic stenosis: a speckle tracking echocardiography study

Circumferential vascular strain rate to estimate vascular load in aortic stenosis: a speckle tracking echocardiography study

Proximal aortic compliance and diastolic function assessed by speckle tracking imaging

Evaluation of abdominal aortic elasticity by strain rate imaging in patients with type 2 diabetes mellitus

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