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0 · lvt vs lv
1 · lv twist mechanics
2 · left ventricular twisting and torsion
3 · left ventricular torsion examples
4 · left ventricular torsion ejection
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Compared with resting levels, the increased E/A ratio, shortened E-wave deceleration time and relatively increased E/e′ ratio suggested post exercise worsening of diastolic function with elevation of left ventricular (LV) filling pressures.
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Background The effects of reperfusion after coronary occlusion on transmural .
Despite the use of novel imaging technologies and the use of .During left ventricular (LV) torsion, the base rotates in an overall clockwise direction and the . Accordingly, to account for the normal 12- to 15-mm systolic excursion of the LV .
Initially measured using invasively implanted radiopaque or ultrasonic markers . Compared with resting levels, the increased E/A ratio, shortened E-wave deceleration time and relatively increased E/e′ ratio suggested post exercise worsening of diastolic function with elevation of left ventricular (LV) filling pressures.
During left ventricular (LV) torsion, the base rotates in an overall clockwise direction and the apex rotates in a counterclockwise direction when viewed from apex to base. LV torsion is followed by rapid untwisting, which contributes to ventricular filling.
Accordingly, to account for the normal 12- to 15-mm systolic excursion of the LV base, the optimal basal LV short-axis view is the one with full-thickness myocardium surrounding the mitral valve at end systole. Initially measured using invasively implanted radiopaque or ultrasonic markers [9,10], the current gold standard for evaluation of LV torsion is by CMR tissue tagging , but it can also be quantified with echocardiographic speckle tracking . Secondly, torsion is a useful and interesting index of cardiac performance which provides important . Background: Left ventricular (LV) torsion is a key parameter in cardiac function and predicts functional capacity (FC) more appropriately than LV ejection fraction (EF). We sought to investigate LV torsion as a marker of hospitalization for worsening heart failure (HF) in non-ischemic dilated cardiomyopathy (DCM) patients.Several clinical (age, NYHA class), laboratory (log transformed NT-pro BNP), standard CMR (LVEF, LV end-diastolic volume (LVEDV), presence of LGE) and strain parameters (GLS, GCS, GRS, LV torsion) were associated with the primary and the secondary endpoint in univariate analysis (Table 4 and Additional file 1: Table S2).
This paper reviews the LV deformation as assessed by strain, strain rate, and LV torsion, as well as the technical features of TDI and STE. The physiological meaning of the parameters will be addressed as well as recent developments in .
lvt vs lv
This paper reviews current clinical applications and shows how torsion can give insights into LV mechanics and the influence of LV geometry and myocyte fiber architecture on cardiac function. Finally, it provides recommendations for CMR measurement protocols, attempts to stimulate standardization of torsion calculation, and suggests areas of .
LV torsion-to-shortening ratio, which is defined as the ratio between inner wall shortening and torsion at ejection, was developed to accurately characterize endocardial strain and. The method yielded LV torsion data that were correlated closely with the results from tagged MRI studies, the current “gold standard” for cardiac torsional deformation analysis, with acceptable bias and variability. Compared with resting levels, the increased E/A ratio, shortened E-wave deceleration time and relatively increased E/e′ ratio suggested post exercise worsening of diastolic function with elevation of left ventricular (LV) filling pressures.
During left ventricular (LV) torsion, the base rotates in an overall clockwise direction and the apex rotates in a counterclockwise direction when viewed from apex to base. LV torsion is followed by rapid untwisting, which contributes to ventricular filling.
Accordingly, to account for the normal 12- to 15-mm systolic excursion of the LV base, the optimal basal LV short-axis view is the one with full-thickness myocardium surrounding the mitral valve at end systole. Initially measured using invasively implanted radiopaque or ultrasonic markers [9,10], the current gold standard for evaluation of LV torsion is by CMR tissue tagging , but it can also be quantified with echocardiographic speckle tracking . Secondly, torsion is a useful and interesting index of cardiac performance which provides important . Background: Left ventricular (LV) torsion is a key parameter in cardiac function and predicts functional capacity (FC) more appropriately than LV ejection fraction (EF). We sought to investigate LV torsion as a marker of hospitalization for worsening heart failure (HF) in non-ischemic dilated cardiomyopathy (DCM) patients.Several clinical (age, NYHA class), laboratory (log transformed NT-pro BNP), standard CMR (LVEF, LV end-diastolic volume (LVEDV), presence of LGE) and strain parameters (GLS, GCS, GRS, LV torsion) were associated with the primary and the secondary endpoint in univariate analysis (Table 4 and Additional file 1: Table S2).
This paper reviews the LV deformation as assessed by strain, strain rate, and LV torsion, as well as the technical features of TDI and STE. The physiological meaning of the parameters will be addressed as well as recent developments in . This paper reviews current clinical applications and shows how torsion can give insights into LV mechanics and the influence of LV geometry and myocyte fiber architecture on cardiac function. Finally, it provides recommendations for CMR measurement protocols, attempts to stimulate standardization of torsion calculation, and suggests areas of . LV torsion-to-shortening ratio, which is defined as the ratio between inner wall shortening and torsion at ejection, was developed to accurately characterize endocardial strain and.
lv twist mechanics
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lv standard torsion|lvt vs lv
