The application of high definition flow imaging in fetal hemodynamics

Yh, He; K, Liu; Xy, Gu; Zhang, Y; Han, Joan C.; Xw, Liu; Za, LI

doi:10.12891/ceog1675.2015

Cited by 12 publications

(3 citation statements)

References 18 publications

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“…If color information is included during the 4D volume acquisition, we can obtain 4D rendered images better visualizing cardiac vessels. HDFI has proved its advantages over traditional CDFI in better detecting fetal PVs, as special bidirectional Doppler technique and two‐way pulsed Doppler coding modality are used to provide high spatial and temporal resolution . In the current report, HDFI and 4D STIC techniques were used to acquire fetal cardiac volumes, which ensured the possibility of better displaying PVs.…”

Section: Discussionmentioning

confidence: 94%

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Two‐ and four‐dimensional echocardiography with high‐definition flow imaging and spatiotemporal image correlation in the diagnosis of fetal isolated partial anomalous pulmonary venous connection

et al. 2018

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Partial anomalous pulmonary venous connection (PAPVC) is a rare malformation. We describe a case of PAPVC, in which the left pulmonary veins coursed to the left innominate vein through a vertical vein and finally drained into the right superior vena cava; the right pulmonary veins were connected to the left atrium. Tracing the origin and destination of abnormal vessels presented at the three-vessel and trachea view is useful for the diagnosis. Four-dimensional echocardiography with high-definition flow imaging and spatiotemporal image correlation facilitates the identification of the drainage of fetal pulmonary veins, which should be considered as a complementary modality in obstetric ultrasonic examination when cardiac abnormalities are suspected.

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Section: Discussionmentioning

confidence: 94%

“…To this point, color Doppler is routinely used in the visualization of fetal PVs at the four‐chamber view (4CV). Recently, high‐definition flow imaging (HDFI) has proved its value in the detection of low velocity vessels. We have previously demonstrated its role in the detection of fetal normal PVs and TAPVC .…”

Section: Introductionmentioning

confidence: 99%

Two‐ and four‐dimensional echocardiography with high‐definition flow imaging and spatiotemporal image correlation in the diagnosis of fetal isolated partial anomalous pulmonary venous connection

et al. 2018

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“…This technology has proven to be a valuable tool by combining the sensitivity of Power Doppler with directional flow information. Consequently, it enhances the visualization of fine details and improves blood flow sensitivity within the specific anatomy of interest [9][10][11][12][13][14][15][16]. The utilization of HDFI contributes to a more comprehensive and accurate assessment of blood flow dynamics in the AI during the early stages of gestation.…”

Section: Introductionmentioning

confidence: 99%

Fetal Aortic Blood Flow Velocity and Power Doppler Profiles in the First Trimester: A Comprehensive Study Using High-Definition Flow Imaging

Wu,

Chen,

et al. 2024

Bioengineering

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Objectives: This study aimed to establish reference values for fetal aortic isthmus blood flow velocity and associated indices during the first trimester, utilizing a novel ultrasonographic technique known as high-definition flow imaging (HDFI). Additionally, the correlation between Doppler profiles of aortic blood flow and key fetal parameters, including nuchal thickness (NT), crown-rump length (CRL), and fetal heartbeat (FHB), was investigated. Methods: A total of 262 fetuses were included in the analysis between December 2022 and December 2023. Utilizing 2D power Doppler ultrasound images, aortic blood flow parameters were assessed, including aortic peak systolic velocity (PS), aortic end-diastolic velocity (ED), aortic time average maximal velocity (TAMV), and various indices such as aortic systolic velocity/diastolic velocity (S/D), aortic pulsatile index (PI), aortic resistance index (RI), aortic isthmus flow velocity index (IFI), and aortic isthmic systolic index (ISI). Concurrently, fetal FHB, NT, and CRL were evaluated during early trimester Down syndrome screening. Results: Significant findings include a positive correlation between gestational age (GA) and PS (PS = 3.75 × (GA) − 15.4, r2 = 0.13, p < 0.01), ED (ED = 0.42 × (GA) − 0.61, r2 = 0.04, p < 0.01), PI (PI = 0.07 × (GA) + 1.03, r2 = 0.04, p < 0.01), and TAMV (TAMV = 1.23 × (GA) − 1.66, r2 = 0.08, p < 0.01). In contrast, aortic ISI demonstrated a significant decrease (ISI = −0.03 × (GA) + 0.57, r2 = 0.05, p < 0.05) with gestational age. No significant correlation was observed for aortic RI (p = 0.33), S/D (p = 0.39), and IFI (p = 0.29) with gestational age. Aortic PS exhibited positive correlations with NT (0.217, p = 0.001) and CRL (0.360, p = 0.000) but a negative correlation with FHB (−0.214, p = 0.001). Aortic PI demonstrated positive correlations with CRL (0.208, p = 0.001) and negative correlations with FHB (−0.176, p = 0.005). Aortic TAMV showed positive correlations with NT (0.233, p = 0.000) and CRL (0.290, p = 0.000) while exhibiting a negative correlation with FHB (−0.141, p = 0.026). Aortic ISI demonstrated negative correlations with NT (−0.128, p = 0.045) and CRL (−0.218, p = 0.001) but a positive correlation with FHB (0.163, p = 0.010). Conclusions: Power Doppler angiography with Doppler ultrasound demonstrates the ability to establish accurate reference values for fetal aortic blood flow during the first trimester of pregnancy. Notably, aortic PS, TAMV, and ISI exhibit significant correlations with NT, CRL, and FHB, with ISI appearing more relevant than IFI, PS, TAMV, and FHB. The utilization of HDFI technology proves advantageous in efficiently detecting the site of the aortic isthmus compared to traditional color Doppler mode in early second trimesters.

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Prenatal two‐and three‐dimensional echocardiographic diagnosis of anomalous origin of one pulmonary artery from the ascending aorta: Case report and literature review

Zhang

Wang

et al. 2020

J of Clinical Ultrasound

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In utero diagnosis of anomalous origin of one pulmonary artery from the ascending aorta (AOPA) has been rarely reported, although this malformation has a high mortality rate due to the rapid development of pulmonary hypertension. We report two cases of AOPA, in which either the left or the right pulmonary artery originated from the distal part of the ascending aorta. Scanning around the three‐vessel view to search for the origin of the left and right pulmonary arteries is essential for the diagnosis. In addition, recognition of an abnormal vessel at the three‐vessel tracheal view is also useful. Three‐dimensional echocardiography with high‐definition flow imaging and spatiotemporal image correlation technique facilitates the identification of the anomalous origin of the pulmonary artery and should be considered a complementary modality in fetal cardiac examinations.

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The application of high definition flow imaging in fetal hemodynamics

Cited by 12 publications

References 18 publications

Two‐ and four‐dimensional echocardiography with high‐definition flow imaging and spatiotemporal image correlation in the diagnosis of fetal isolated partial anomalous pulmonary venous connection

Two‐ and four‐dimensional echocardiography with high‐definition flow imaging and spatiotemporal image correlation in the diagnosis of fetal isolated partial anomalous pulmonary venous connection

Fetal Aortic Blood Flow Velocity and Power Doppler Profiles in the First Trimester: A Comprehensive Study Using High-Definition Flow Imaging

Prenatal two‐and three‐dimensional echocardiographic diagnosis of anomalous origin of one pulmonary artery from the ascending aorta: Case report and literature review

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