Right Ventricular Dissipative Energy Loss Detected by Vector Flow Mapping in Children: Characteristics of Normal Values

Chen, Zhongxiu; Li, Yajiao; Li, Chen; Tang, Hong; Wang, Hui; Zhong, Yue; Cai, Yuyan; Li, Rao

doi:10.1002/jum.14674

Cited by 6 publications

(10 citation statements)

References 25 publications

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“…Vector flow imaging performed intraoperatively has been used to quantify flow complexity using methods such as vector concentration which has exhibited a strong correlation to degree of stenosis (13). Additionally, vector flow imaging has been used for pressure gradient estimations at the carotid bifurcation and at the aortic valve, along with vorticity estimations in the ascending aorta and carotid bulb (14,15,16). The study of vortex formation in the cardiac chambers has also been demonstrated with vector flow mapping and vector flow imaging (17).…”

Section: Discussionmentioning

confidence: 99%

Real-time transthoracic vector flow imaging of the heart in pediatric patients

Collins

Laughlin

Lang

et al. 2019

Progress in Pediatric Cardiology

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In children with congenital heart defects, Doppler ultrasound is the standard, bedside imaging modality. However, precise characterization of blood flow is challenging due to angle-dependent and one-dimensional velocity estimation. Contrast agent free Vector Flow Imaging is a new ultrasound technology that enables angle-independent visualization of the detailed flow field. Two piglets, one with normal cardiac anatomy and one with congenital heart disease comprised of valvular pulmonary stenosis, a dilated main pulmonary artery, and an incomplete atrioventricular canal defect, were imaged transthoracically and epicardially using a BK Ultrasound bk5000 with built-in vector flow imaging and a 5MHz linear probe. Subsequently, two children, one with normal cardiac anatomy and one with congenital heart disease comprised of aortic valve stenosis and coarctation of the aorta were imaged transthoracically. Transthoracic two-dimensional echocardiography and vector flow imaging were readily performed in both animals and were limited only by the geometry of the porcine thorax. In addition, transthoracic vector flow imaging was successfully performed in both children, and abnormal flow secondary to cardiac anomalies was visible. Adequate penetration was obtained to a depth of 6.5 cm. Our group has previously

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Section: Discussionmentioning

confidence: 99%

Real-time transthoracic vector flow imaging of the heart in pediatric patients

Collins

Laughlin

Lang

et al. 2019

Progress in Pediatric Cardiology

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“…The age characteristics of the subjects and results of the cardiac ultrasound studies are summarized in Table 2 [28,29,44,[58][59][60][61].…”

Section: Effect Of Age In Cardiac Ultrasound Studiesmentioning

confidence: 99%

“…Chen et al [61] used VFM to study 90 healthy children aged 1-18 years, which were divided into 3 age groups. The average diastolic and systolic ELs were calculated for the RV in the RV-focused apical 4-chamber view and for the RV outflow tract and pulmonary trunk (OP) in the parasternal short-axis view.…”

Section: Ultrasound Studies: Right Ventriclementioning

confidence: 99%

Effect of Aging on Intraventricular Kinetic Energy and Energy Dissipation

Mele,

Beccari,

Pedrizzetti

2023

JCDD

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In recent years, analysis of kinetic energy (KE) and the rate of kinetic energy dissipation (KED) or energy loss (EL) within the cardiac chambers, obtained by cardiac imaging techniques, has gained increasing attention. Thus, there is a need to clarify the effect of physiological variables, specifically aging, on these energetic measures. To elucidate this aspect, we reviewed the literature on this topic. Overall, cardiac magnetic resonance and echocardiographic studies published so far indicate that aging affects the energetics of left and right intraventricular blood flow, although not all energy measures during the cardiac cycle seem to be affected by age in the same way. Current studies, however, have limitations. Additional large, multicenter investigations are needed to test the effect of physiological variables on intraventricular KE and KED/EL measures.

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“…Lastly, in the analysis of right ventricle (RV) EL in children, median values for diastolic and systolic EL were 8.82 W/m and 3.17 W/m, and at multivariate analysis age was identified as the strongest influencing factor for EL. 24…”

Section: Reference Values and Correlations With Standard Doppler Parametersmentioning

confidence: 99%

Vector flow mapping: A review from theory to practice

Avesani

Degrelle²,

Salvo

et al. 2021

Echocardiography

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Background:The interest in intra-cardiac blood flow analysis is rapidly growing, and it has encouraged the development of different non-invasive imaging techniques. Among these, Vector Flow Mapping (VFM), combing Color-Doppler imaging and speckle tracking data, seems to be a promising approach, feasible in adult and children population. Aim of the review:The aim of this review is to give a historical perspective on the development of VFM method and a summary of the current algorithms and parameters potentially evaluable. Then, we will present the current state-of-the-art of VFM with an overview of clinical studies and applications of this technique.

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Right Ventricular Dissipative Energy Loss Detected by Vector Flow Mapping in Children: Characteristics of Normal Values

Cited by 6 publications

References 25 publications

Real-time transthoracic vector flow imaging of the heart in pediatric patients

Real-time transthoracic vector flow imaging of the heart in pediatric patients

Effect of Aging on Intraventricular Kinetic Energy and Energy Dissipation

Vector flow mapping: A review from theory to practice

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