Two-dimensional strain–a novel software for real-time quantitative echocardiographic assessment of myocardial function

Leitman, Marina; Lysyansky, Peter; Sidenko, Stanislav; Shir, Vladimir; Peleg, Eli; Binenbaum, Michal; Kaluski, Edo; Krakover, Ricardo; Vered, Zvi

doi:10.1016/j.echo.2004.06.019

Cited by 1,061 publications

(849 citation statements)

References 17 publications

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“…The methods for image acquisition and postprocessing of GLS with speckle tracking have been described (Leitman et al. 2004). Briefly, the apical three‐, two‐, and four‐chamber high frame rate grayscale acquisitions (40–80 frames/sec) were obtained.…”

Section: Methodsmentioning

confidence: 99%

Comparative effects of glucose and water drinks on blood pressure and cardiac function in older subjects with and without postprandial hypotension

et al. 2017

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Postprandial hypotension (PPH) occurs frequently and is thought to reflect an inadequate increase in cardiac output to compensate for the rise in splanchnic blood flow after a meal. Gastric distension by water attenuates the postprandial fall in blood pressure (BP). Cardiac hemodynamics (stroke volume (SV), cardiac output (CO), and global longitudinal strain (GLS)) have hitherto not been measured in PPH. We sought to determine the comparative effects of water and glucose drinks on cardiac hemodynamics in healthy older subjects and individuals with PPH. Eight healthy older subjects (age 71.0 ± 1.7 years) and eight subjects with PPH (age 75.5 ± 1.0 years) consumed a 300 mL drink of either water or 75 g glucose (including 150 mg 13C‐acetate) in randomized order. BP and heart rate (HR) were measured using an automatic device, SV, CO, and GLS by transthoracic echocardiography and gastric emptying by measurement of 13 CO 2. In both groups, glucose decreased systolic BP (P < 0.001) and increased HR, SV, and CO (P < 0.05 for all). The fall in systolic BP was greater (P < 0.05), and increase in HR less (P < 0.05), in the PPH group, with no difference in SV or CO. Water increased systolic BP (P < 0.05) in subjects with PPH and, in both groups, decreased HR (P < 0.05) without affecting SV, CO, or GLS. In subjects with PPH, the hypotensive response to glucose and the pressor response to water were related (R = −0.75, P < 0.05). These observations indicate that, in PPH, the hypotensive response to oral glucose is associated with inadequate compensatory increases in CO and HR, whereas the pressor response to water ingestion is maintained and, possibly, exaggerated.

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Section: Methodsmentioning

confidence: 99%

Comparative effects of glucose and water drinks on blood pressure and cardiac function in older subjects with and without postprandial hypotension

et al. 2017

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“…The software then automatically detected frame-to-frame movement of the natural ultrasound reflections (speckles) on standard ultrasonic images in two dimensions based on the block-matching and autocorrelation search algorithms. 3 The carotid arterial wall was equally divided into six segments, and each segment was analyzed individually. CS, which is expressed as the circumferential stretch during systole, was automatically determined from each time-strain curve for all six segments.…”

Section: The Measurement Of Csmentioning

confidence: 99%

“…[3][4][5][6][7][8][9] Although this method can be applied to the human carotid arterial wall to directly assess arterial elasticity, it has not been well assessed. Therefore, the aims of this study were to evaluate the feasibility of direct measurement of peak circumferential strain (CS) of the carotid arterial wall using 2DST, to compare the reproducibility of CS with conventional arterial stiffness parameters in healthy subjects, and to compare CS between subjects with and without hypertension.…”

Section: Introductionmentioning

confidence: 99%

Carotid arterial circumferential strain by two-dimensional speckle tracking: a novel parameter of arterial elasticity

Saito¹,

Okayama

Inoue

et al. 2012

Hypertens Res

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Recently, the development of two-dimensional speckle-tracking (2DST) technology has allowed the direct measurement of the elastic parameters of the carotid arterial wall. The aims of this study were to determine the feasibility of measuring peak circumferential strain (CS) of the carotid arterial wall using 2DST and to compare this value with conventional arterial stiffness parameters in subjects with and without hypertension. The study included 90 healthy subjects and 40 age-and sex-matched patients with hypertension. The short-axis view of the right common carotid artery was recorded. The CS in the posterior region of the carotid artery was calculated by 2DST using special software and corrected by the following equation: e circ ¼ ln (systolic blood pressure/diastolic blood pressure)/CS. We simultaneously measured the stiffness index b (b) at the same location and the brachial-ankle pulse wave velocity (baPWV). Sixty randomly selected healthy subjects were used to assess the inter/ intra-observer variability of e circ and b. In healthy subjects, e circ was significantly correlated with b, age and baPWV. These correlations were slightly better than the corresponding correlations of b with age and baPWV. The hypertensive patients had a significantly larger e circ than the healthy subjects (0.112 ± 0.074 vs. 0.066 ± 0.029/%, Po0.001). The inter/intra-observer variability for e circ was significantly lower than that for b. Our data suggest that the measurement of carotid e circ using 2DST is feasible and has better reproducibility than conventional carotid arterial stiffness.

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“…5a, 5b). Strain imaging is derived from TDI 49 and more recently from 2D myocardial speckle‐tracking 50 . Unlike TDI measurements, S and SR are not subjected to cardiac tethering 51 , 52 .…”

Section: Newer Parameters and Applicationmentioning

confidence: 99%

Echocardiographic evaluation of systolic heart failure

Thomas

2009

Australas J Ultrason Med

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Echocardiography is the most commonly used modality for evaluating left ventricular size and function in the context of systolic heart failure. Traditional techniques, though extensively used, have their limitations and more recently several newer technologies have emerged that are more reproducible, provide prognostic information, guide therapies and have an important role in monitoring progress. This review will evaluate the traditional and more novel techniques used and briefly provide an overview of the role of echocardiography in guiding and monitoring therapies in patients with systolic heart failure.

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Two-dimensional strain–a novel software for real-time quantitative echocardiographic assessment of myocardial function

Cited by 1,061 publications

References 17 publications

Comparative effects of glucose and water drinks on blood pressure and cardiac function in older subjects with and without postprandial hypotension

Comparative effects of glucose and water drinks on blood pressure and cardiac function in older subjects with and without postprandial hypotension

Carotid arterial circumferential strain by two-dimensional speckle tracking: a novel parameter of arterial elasticity

Echocardiographic evaluation of systolic heart failure

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