Comparison of Two-Dimensional Speckle and Tissue Velocity Based Strain and Validation With Harmonic Phase Magnetic Resonance Imaging

Cho, Goo-Yeong; Chan, Jonathan; Leano, Rodel; Strudwick, Mark; Marwick, T.

doi:10.1016/j.amjcard.2005.12.063

Cited by 233 publications

(169 citation statements)

References 22 publications

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“…Currently, 2DST is available to detect regional myocardial deformation in various cardiac diseases. [3][4][5][6][7][8][9] Furthermore, the sensitivity of high-frame 2DST in the circumferential direction was recently assessed in rat and mouse models with very thin myocardial thickness, 12,13 and this technique can be used in the clinical setting. Therefore, we applied it to the carotid arterial wall, because this technique enables the measurement of strain in very thin tissue segments with high reproducibility.…”

Section: Discussionmentioning

confidence: 99%

“…However, CS was semi-automatically measured using 2DST software with high reproducibility. [3][4][5][6][7][8][9]12,13 The difference in measurement methods may account for the significantly better reproducibility of e circ compared with b. Second, e circ is a parameter Carotid arterial circumferential strain M Saito et al that directly measures the elasticity of the carotid arterial wall in the circumferential direction, whereas b is an indirect parameter that measures the change of the internal luminal diameter of the artery in the radial direction.…”

Section: Discussionmentioning

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%

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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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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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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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“…Overall good correlations were found for longitudinal and radial strain in healthy volunteers and in patients with ischemic heart disease [12][13][14][15] . Circumferential strain was considered by the team of Brisbane [14,15] , providing a modest correlation coefficient between both methods, between 0.51 and 0.64. However, only overall results of strain were compared in these studies, without focusing on regional analysis.…”

Section: Previously Reported Data About Regional Ecc Obtained By Mr-tmentioning

confidence: 75%

“…Moreover it should be emphasized that concordance between both methods was not very strong. For example, despite a good correlation coefficient (r=0.87), it should be noticed that in the study of Amundsen et al [13] as well as in the study of Cho et al [14] , Bland-Altmann 95% limits of agreement between STE and tagging was in the range ±10%, which is almost half of the mean magnitude of circumferential strain (mean value in the range -20%). In the study of Bansal et al [15] r was 0.63 and the 95% limits of agreement was somewhat better, in the range ±6% (i.e.…”

Section: Previously Reported Data About Regional Ecc Obtained By Mr-tmentioning

confidence: 87%

Discrepancy between regional left ventricular regional circumferential strain assessed by MR-tagging and by speckle tracking echocardiography

Ghannudi¹,

Germain

Jeung³

et al. 2013

JBGC

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Background: In recent years, myocardial strain imaging has gained an important place for the evaluation of cardiac patients. Global longitudinal strain assessed by speckle tracking echocardiography (STE) is now commonly used but circumferential strain remains less extensively studied. MR-tagging is recognized as the reference method for circumferential strain analysis, however no validation study between regional MR-tagging and regional STE has been performed up to now. Objective:To compare segmental circumferential strain values (Ecc) obtained by speckle tracking and by MR-tagging in patient with normal systolic function in order to define if both methods are interchangeable or not.Patients and methods: patients without significant regional nor global systolic dysfunction (LVEF > 55%) were studied by MR-tagging (n=82) and by STE (n=35). Left ventricular mid-level short axis slice was obtained by both methods and paired data were available in 16 patients. Segmental Ecc values were computed in six equidistant sectors using GE EchoPac software for STE and InTag post processing software for MR-tagging. Results: 1) Comparison between regions:Overall results showed that regional peak Ecc magnitude |Eccpeak| was not uniform with both methods but in an opposite way. MR-tagging demonstrated significantly lower septal |Eccpeak| as compared with postero-lateral |Eccpeak| (-16.5±3.6 vs -23.4±4.4, p<10 -4 ). Conversely, STE showed significantly higher septal |Eccpeak| as compared with postero-lateral |Eccpeak| (-22.3±6.4 vs -13.9±6.2, p<10 -4 ). 2) Comparison between both methods: In the subgroup of patients studied by both methods, septal |Eccpeak| was 29% lower by MR-tagging as compared with STE (-14.9±2.4 vs -20.9±6.5, p<.006) and postero-lateral |Eccpeak| was 39% lower by STE as compared with MR-tagging (-12.9±5.9 vs -21.0±2.9, p<.0003). 3) Intra and interobserver coefficients of variation were homogeneous (in the range 10%-14%) for all sectors with MR-tagging but were dramatically variable with STE (15% to 20% in the anterior-septal region but three times higher, in the range 35%-40%, in the postero-lateral territory). Conclusion:Regional distributions of Ecc is not uniform but opposite results are provided by MR-tagging and by STE. This finding demonstrates that both methods cannot be considered as interchangeable. These conflicting results raise the www.sciedu.ca/jbgc Journal of Biomedical Graphics and Computing, 2013, Vol. 3, No. 4 ISSN 1925-4008 E-ISSN 1925 76 question of the validity of either MR tagging or speckle tracking for the quantification of regional circumferential strain. Some arguments, developed in the discussion would rather let believe that MR-tagging results should be more reliable.

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Three‐Dimensional Reconstruction of Strain Measurement and Measurement of Strain in Three‐Dimensions

Støylen¹

2007

Myocardial Imaging: Tissue Doppler and Speckle Tracking

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Comparison of Two-Dimensional Speckle and Tissue Velocity Based Strain and Validation With Harmonic Phase Magnetic Resonance Imaging

Cited by 233 publications

References 22 publications

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

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

Discrepancy between regional left ventricular regional circumferential strain assessed by MR-tagging and by speckle tracking echocardiography

Three‐Dimensional Reconstruction of Strain Measurement and Measurement of Strain in Three‐Dimensions

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