Normal reference values of three-dimensional speckle-tracking echocardiography-derived left ventricular strain parameters in healthy adults

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
A Nemes ◽  
A Kormanyos ◽  
A Kalapos ◽  
P Domsik ◽  
N Gyenes ◽  
...  
Keyword(s):  
Reference Values ◽  
Healthy Subjects ◽  
Speckle Tracking ◽  
Healthy Adult ◽  
Speckle Tracking Echocardiography ◽  
Three Dimensional ◽  
Left Ventricular ◽  
Valvular Regurgitation ◽  
Success Ratio ◽  
Normal Reference

Abstract Introduction At this moment, limited number of studies is defining normal reference value of three-dimensional (3D) speckle-tracking echocardiography (3DSTE)-derived left ventricular (LV) strains. The present study aimed to quantify normal reference values of LV strains in healthy adult population in real clinical world settings in different age groups and to determine age- and gender-dependence of these parameters in a high volume single centre. Methods The present study comprised 296 healthy adult subjects from which 124 cases were excluded due to inferior image quality during a 6-year period. The remaining population was further divided into 4 subgroups based on age decades. The following groups of healthy subjects were examined based on their age: 18–29 years (mean age: 23.6±2.8 years, 45 males out of 94), 30–39 years (mean age: 33.7±2.8 years, 27 males out of 34), 40–49 years (mean age: 43.4±3.4 years, 11 males out of 17) and 50+ years (mean age: 56.4±5.3 years, 12 males out of 27). All subjects underwent a complete 2D echocardiographic and Doppler assessment with negative results. None of the healthy subjects showed more than grade 1 valvular regurgitation or significant stenosis on any valves. Results The mean LV radial (RS), circumferential (CS), longitudinal (LS), 3D (3DS) and area (AS) strains proved to be 27.7±8.8%, −28.6±4.8%, −16.9±2.4%, 30.2±8.8% and −41.4±4.9%, respectively. While global LV-RS and LV-3DS showed an increase-decrease-increase pattern, LV-CS, LV-LS and LV-AS were somewhat lower in older ages. Only global LV-LS showed gender-dependency with higher values in females. Although somewhat higher LV-RS and LV-3DS and lower LV-CS, LV-LS and LV-AS could be measured in males, clear gender-dependency could not be detected in different age decades. The measurements were performed between 2011 and 2017, when feasibility of 3DSTE analysis improved as the operators gained experience. The number of adequate measurements proved to be 172 out of 296 (58% success ratio) for the overall time-period. For the last year, the number of good quality measurements, therefore the success ratio improved significantly (47 out of 59, 80%, p=0.001). Conclusions Normal reference values of 3DSTE-derived global, segmental, mean segmental and regional LV strains have been determined in healthy adult subjects based on real-life clinical experience. Age-, gender- and functional non-uniformity of LV strains were also defined. Funding Acknowledgement Type of funding source: None

scholarly journals P1562 Normal reference values of three-dimensional speckle-tracking echocardiography-derived right atrial volumes and volume-based functional properties in healthy adult subjects

2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
A Nemes ◽  
A Kormanyos ◽  
P Domsik ◽  
A Kalapos ◽  
N Ambrus ◽  
...  
Keyword(s):  
Functional Properties ◽  
Reference Values ◽  
Speckle Tracking ◽  
Healthy Adult ◽  
Speckle Tracking Echocardiography ◽  
Three Dimensional ◽  
Right Atrial ◽  
Normal Reference ◽  
Significant Difference ◽  
Significant Impairment

Abstract Introduction The right atrium (RA) has several roles including a systolic reservoir, early diastolic conduit and late-diastolic booster pump functions. The present study aimed to assess normal reference values of three-dimensional speckle-tracking echocardiography (3DSTE)-derived RA volumetric data and volume-based functional properties (stroke volumes, SVs and emptying fractions, EFs) in healthy adult subjects. Methods 260 healthy adult subjects in sinus rhythm with complete clinical and demographic dataset have been included in the present study. However, due to inferior image quality 110 subjects have been excluded. The remaining population comprised 150 cases (31.0 ± 11.6 years, 79 males). Complete two-dimensional Doppler echocardiography and 3DSTE have been performed in all subjects. Results While systolic maximum RA volume did not change over age decades, early and late-diastolic RA pre-atrial contraction volume and minimum RA volume increased over time. Significantly larger values could be detected in more than 50 year-old healthy subjects as compared to younger subjects. Total atrial SV remained almost unchanged over age decades with a significant reduction in subjects aged >50 years. Passive atrial SV showed a continuous reduction over age decades and significant difference could be demonstrated between subjects aged 18-29 years and >50 years. Active atrial SV increased over age decades with a significant reduction in subjects aged >50 years. Total atrial EF did not show any changes over age decades, but a significant reduction could be demonstrated in cases aged >50 years. Passive atrial EF showed significant continuous reduction over age decades. Active atrial EF did not change in younger ages, it was the highest at ages 40-49 years with a significant impairment after 50 years. Females proved to have tendentiously higher RA volumes respecting the cardiac cycle regardless of age. No significant differences could be demonstrated between RA stroke volumes between genders except between 40-49 years when females had tendentiously higher values. RA emptying fractions were non-significantly, but tendentiously higher in females as compared to that of males regardless of age. Conclusions Normal reference values of 3DSTE-derived RA volumes and volume-based functional properties and their age- and gender dependency were defined in healthy adult subjects.

scholarly journals P1406 Normal reference values of right atrial strain parameters using three-dimensional speckle-tracking echocardiography in healthy adults

2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
A Nemes ◽  
A Kormanyos ◽  
P Domsik ◽  
A Kalapos ◽  
N Ambrus ◽  
...  
Keyword(s):  
Image Quality ◽  
Reference Values ◽  
Healthy Subjects ◽  
Speckle Tracking ◽  
Speckle Tracking Echocardiography ◽  
Three Dimensional ◽  
Right Atrial ◽  
Imaging Method ◽  
Normal Reference ◽  
Atrial Contraction

Abstract Introduction Classic echocardiographic methodologies offer limited opportunities in assessing right atrial (RA) morphology and function. Three-dimensional (3D) speckle-tracking echocardiography (3DSTE) is a novel imaging method with objective 3D capability in assessing volumetric and functional properties of heart chambers. Normal reference values of different 3DSTE-derived RA strains are not available, therefore the aim of this prospective study was to establish these parameters in healthy subjects. Methods The present study comprised 295 healthy volunteers, from which 110 were excluded due to inadequate image quality. The final population consisted of 185 healthy subjects in the present study (mean age: 32.1 ± 12.2 years, 89 males). Complete two-dimensional echocardiography and 3DSTE have been performed in all cases. Results While radial strain (RS) does not change significantly over the years in males, RS increases with age most significantly between 40-49 years, and it starts to decline at the age of 50 years in females. While females have higher circumferential strain (CS) and area strain (AS) values, RS decreases with age in both gender. While longitudinal strain (LS) remains almost unchanged in females until 40-49 years and declines above the age of 50 years in females, it decreases over decades in males. 3D strain (3DS) increases with ages in both gender, but almost doubles in females in older ages. While RS at atrial contraction does not change over decades in males, an obvious increase could be seen in females with a higher value between 40-49 years and a decline over 50 years. A decrease could be seen in CS at atrial contraction in males over decades, it is almost tripled in value between 40-49 years in females. Although LS at atrial contraction is higher in females, it decreases over decades in both genders. AS decreases over decades in males, while females have almost doubled AS values at the ages 40-49 years. 3DS is almost unchanged in males, while doubled in older ages in females. During evaluations, 110 subjects were excluded due to inferior image quality from the total of 295 enrolled subjects, therefore the overall feasibility of 3DSTE-derived RA quantification was 185 out of 295 (63% overall feasibility). Conclusion 3DSTE-derived RA normal reference values with age- and gender-dependency are demonstrated in a healthy population.

scholarly journals Left ventricular strain values using 3D speckle-tracking echocardiography in healthy adults aged 20 to 72 years

2020 ◽  
Author(s):  
Ferit Onur Mutluer ◽  
Daniel J. Bowen ◽  
Roderick W. J. van Grootel ◽  
Jolien W. Roos-Hesselink ◽  
Annemien E. Van den Bosch
Keyword(s):  
Speckle Tracking ◽  
Healthy Adult ◽  
Speckle Tracking Echocardiography ◽  
Global Longitudinal Strain ◽  
Significant Proportion ◽  
Three Dimensional ◽  
Left Ventricular ◽  
Tangential Strain ◽  
Left Ventricular Strain ◽  
Single Vendor

AbstractThree dimensional speckle tracking echocardiography (3D-STE) is a novel modality for the assessment of left ventricular strain (LVS). The aim of our study is to provide single vendor normative strain values measured with 3D-STE in healthy adult caucasians. One hundred fifty-five healthy subjects aged 20 to 72 years (≥ 28 subjects per decile) were prospectively included and examined with 2D and 3D transthoracic echocardiography. In 105 both 3D and 2D-STE were feasible (71%, mean age 44 ± 14 years, 51% female). Mean 3D tangential strain (3D-TS) was − 32 ± 2.9%. 3D global longitudinal strain (3D-GLS) demonstrated a significant but not very strong correlation with 2D-GLS values (− 19.7 ± 1.8% vs − 20.4 ± 2.2%, r = 0.462, p < 0.001). No gender difference was observed in 3D strain parameters. 3D-GLS decreased with increasing age stratum (p = 0.024). LVEF was associated with 3D-TS and 3D-GLS (r =  − 0.819, p ≤ 0.001 for 3D-TS, p =  − 0.477, r < 0.001, p = 0.001 for 3D-GLS). In this single vendor study age and gender-specific normative LV 3D-TS values were reported for healthy adult caucasians. In a significant proportion of the subjects 3D-STE was not feasible, but when feasible, 3D-STE shows excellent association with LVEF, and is therefore a promising novel modality for the assessment of the myocardial function, provided that issues of limited feasibility and temporal resolution are addressed.

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