Left ventricular ejection fraction by real-time three-dimensional echocardiography

Dalen, Bas M. van

doi:10.1007/s12471-014-0579-z

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…However, because of the geometric assumptions of this 2D method, measurements may be inaccurate if the shape of the left ventricle is abnormal or when the acquisition of the 2D images is suboptimal. 12 STIC seems to overcome many of the pitfalls of conventional ultrasound methods, it avoids the geometric assumptions made in the 2D method for estimating ventricular volume. STIC is a new 4D acquisition modality that adds a time component to 3D ultrasound imaging of the fetal heart, so we can evaluate cardiac structures as a 4D cine sequence containing information of one full cardiac cycle.…”

Section: Discussionmentioning

confidence: 99%

“…Calculating LV volumes and EF from 2D images by using the biplane method of modified Simpson's rule is considered more accurate and better reproducible. However, because of the geometric assumptions of this 2D method, measurements may be inaccurate if the shape of the left ventricle is abnormal or when the acquisition of the 2D images is suboptimal 12 . STIC seems to overcome many of the pitfalls of conventional ultrasound methods, it avoids the geometric assumptions made in the 2D method for estimating ventricular volume.…”

Section: Discussionmentioning

confidence: 99%

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Assessment of left ventricular function by spatio‐temporal image correlation in fetuses with fetal growth restriction

Ziyu

2022

Echocardiography

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Aim To compare the evaluation of left ventricular function by spatio‐temporal image correlation (STIC) between fetal growth restriction (FGR) fetuses and normal fetuses. Methods Forty‐two FGR fetuses and 50 normal fetuses with gestational age ranging from 28 to 35 weeks, were chosen for the study group and control group, respectively. The fetal heart was acquired using the STIC modality, beginning with a four‐chamber view. A 7.5–12.5 s acquisition time and 20–35°angle of the acquisition were used for the acquisition. The resulting STIC dataset was saved for offline analysis. Ventricular volumes were measured using the Virtual Organ Computer‐aided Analysis (VOCAL) mode, where the observer defines the contours of the ventricle and traces the endocardia. Stroke volume (SV) = end diastolic volume (EDV)−end systolic volume (ESV) and ejection fraction (EF) = SV/EDV × 100%. The data of the two groups were analyzed. Results (1) SV increased with fetal growth in both groups and was positively correlated with gestational age (p < .01), whereas EF remained constant throughout gestation and had no correlation with gestational age (p > .05). (2) There was no difference found in EF between the two groups, (p > .05), SV was significantly lower in FGR group than those in the normal group (p < .01). Conclusion The STIC is a precise method for calculating fetal ventricular volume changes and functions. Reduced SV occurred at the initial stage of fetal deterioration before the discovery of abnormal EF in FGR fetuses, indicating cardiac dysfunction. SV could be a sensitive indicator of cardiac dysfunction. The use of EF to assess fetal cardiac function is not perfect.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Assessment of left ventricular function by spatio‐temporal image correlation in fetuses with fetal growth restriction

Ziyu

2022

Echocardiography

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Value of three‐dimensional speckle‐tracking imaging in detecting left ventricular systolic function in patients with dilated cardiomyopathy

Yang

2019

Echocardiography

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Objective To explore the value of three‐dimensional speckle‐tracking imaging (3DSTI) in detecting left ventricular systolic function in patients with dilated cardiomyopathy (DCM). Methods Totally 31 DCM patients were enrolled in this study. Left ventricular end‐systolic volume (LVESV), left ventricular end‐diastolic volume (LVEDV), and left ventricular ejection fraction (LVEF) were measured using the 3DSTI, two‐dimensional echocardiography (2DE), and magnetic resonance imaging (MRI). Left ventricular end‐diastolic mass (EDmass) and left ventricular end‐diastolic mass index (LVEDmass I) were also detected by 3DSTI and MRI. The differences in these measurements were analyzed and compared. Results The values of LVESV, LVEDV, and LVEF showed significantly positive correlations among 2DE group, 3DSTI group, and MRI group. The LVEF value showed significant difference among these three groups [(33.3 ± 11.1)%, (30.3 ± 10.6)%, and (26.2 ± 10.7)%; P = 0.04], whereas LVEDV and LVESV values were not significantly different (P > 0.05; respectively). Inter‐group comparison showed the mean of LVEF was significantly lower in MRI group than in 2DE group (P = 0.031), whereas there was no significant difference between 2DE group and 3DSTI group and between 3DSTI group and MRI group (P > 0.05; respectively). The EDmass and EDmassI detected by 3DSTI and MRI were (143.2 ± 40.2) g vs (190.0 ± 58.3) g and (83.2 ± 21.1) g/m2 vs (110.1 ± 29.7) g/m2 (P < 0.001; respectively). Conclusions The LVEF value detected by 3DSTI is closer to that detected by MRI in DCM patients.

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Left ventricular ejection fraction by real-time three-dimensional echocardiography

Cited by 2 publications

References 5 publications

Assessment of left ventricular function by spatio‐temporal image correlation in fetuses with fetal growth restriction

Assessment of left ventricular function by spatio‐temporal image correlation in fetuses with fetal growth restriction

Value of three‐dimensional speckle‐tracking imaging in detecting left ventricular systolic function in patients with dilated cardiomyopathy

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