Magnetic resonance angiography of fetal vasculature at 3.0 T

Neelavalli, Jaladhar; Krishnamurthy, Uday; Jella, Pavan; Mody, Swati; Yadav, Brijesh; Hendershot, Kelly; Hernández‐Andrade, Edgar; Yeo, Lami; Cabrera, M.; Haacke, E. Mark; Hassan, Sonia S.; Romero, Roberto

doi:10.1007/s00330-016-4243-4

Cited by 19 publications

(8 citation statements)

References 34 publications

(31 reference statements)

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“…As part of a larger study, ng‐PCMRI data were acquired whenever possible. The umbilical vessels were first localized using a noncontrast, nonbreath‐hold time‐of‐flight MRA sequence . Once the umbilical cord was localized, nontriggered phase contrast images using the modified sequence were acquired using the following parameters: repetition time (TR) of 14 msec, echo time (TE) of 7–9 msec, slice thickness of 3/4 mm, voxel size between (0.5–0.8) × (0.5–0.8) mm 2 , and flip angle of 15°.…”

Section: Methodsmentioning

confidence: 99%

Quantitative Flow Imaging in Human Umbilical Vessels In Utero Using Nongated 2D Phase Contrast MRI

Krishnamurthy

Yadav

Jella

et al. 2017

Magnetic Resonance Imaging

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Section: Methodsmentioning

confidence: 99%

Quantitative Flow Imaging in Human Umbilical Vessels In Utero Using Nongated 2D Phase Contrast MRI

Krishnamurthy

Yadav

Jella

et al. 2017

Magnetic Resonance Imaging

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“…Researchers have recognized the serious outcomes of abnormalities in the fetal venous system, but research in this area has to date been limited to a description of the imaging features in individual cases, and no general pattern of the fetal cranial venous system has been established. Accordingly, there is an increasingly urgent need for standardizing MRI data (6,7).…”

Section: Discussionmentioning

confidence: 99%

Quantitative Evaluation of a Cross-Sectional Area of the Fetal Straight Sinus by Magnetic Resonance Imaging and Its Clinical Value

Xu²,

Liu³

et al. 2022

Front. Neurol.

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ObjectiveThe intracranial venous system plays an important role in ensuring blood circulation and a stable blood supply to the fetal brain. In the present study, a cross-sectional area of the fetal straight sinus was quantitatively evaluated by fetal magnetic resonance imaging (MRI) to explore the method's clinical value.MethodsThe clinical and MRI data of 126 normal fetuses in mid-to-late stage pregnancies were retrospectively analyzed. The “dominant” sequence of the fetal straight sinus was selected, and the cross-sectional area of the lumen was measured at each gestational age to obtain the normal range at different ages and to analyze the developmental pattern and characteristics of the fetal straight sinus.ResultsThere were statistically significant differences in the cross-sectional area of the fetal straight sinus among different gestational ages (P < 0.05). The cross-sectional area of the fetal straight sinus was positively correlated with gestational age (coefficient of determination = 0.6892, P < 0.05). That is, the cross-sectional area of the fetal straight sinus grew with increasing gestational age, and the regression equation was y = 0.27 x – 2.14 (P < 0.05). Additionally, there were five fetuses with cerebral venous abnormalities, including four with heart failure and one with venous sinus thrombosis.ConclusionQuantitative measurement of a cross-sectional area of the fetal straight sinus by MRI enhanced understanding of the anatomical features and developmental pattern of fetal cerebral veins and provided a reference for the clinical diagnosis of related diseases and investigation concerning pathogenesis.

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“…Wong et al studied 966 singleton babies to develop a nomogram for the fetal pulmonary artery to aortic diameter ratio (18). Ruano et al, constructed nomogram of main pulmonary artery, right and left pulmonary artery in 220 fetuses between the GA of 19 and 40 weeks (19).…”

Section: Discussionmentioning

confidence: 99%

Establishing Normal Range of Fetal Pulmonary Artery and Fetal Aortic Diameter in 18-26 Weeks of Gestation in Pakistani Population

Nadeem¹,

Malik²,

Niazi³

et al. 2022

PJMHS

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Congenital heart diseases constitute almost 0.8 to 1.2% of newborn illnesses globally however unfortunately 64% of them remained undiagnosed on conventional anamoly scan which uses four chamber view for cardiac evaluation. In developed countries, other than routine anomaly scan, the three vessel view(3VV) has been added to look for any potential outflow tract anomalies which increased the sensitivity of screening CHD however this view is not routinely used in our clinical practice due to lack of expertise and less awareness regarding the importance of this view . We aimed to establish normal reference values of fetal pulmonary and fetal aorta diameter value using 3VV so that its routine use can increase diagnostic accuracy of anamoly scan in our population. Methodology: This is a non probability convenient study investigating healthy pregnant females between 18-26weeks of gestation conducted from 04-02-2022 to 04-08-2022. After formal ethical approval, 56 patients were included in the study. After achieving 3VV,fetal pulmonary artery and fetal aorta diameter were evaluated and mean values were calculated for each gestational week. Results: The mean age of pregnant females included is 27.3 + 4.4 years (range 20 -37 years). The pulmonary artery diameter ranged from 2.3mm at 18 week of gestation to 3.6mm at 26 week of gestation. Fetal PAD is observed to correlate linearly (r=0.887) with gestational age and linear regression equation derived as PAD= (-0.52) +0.15(GA). Mean fetal aortic diameter was calculated ranged from 1.5mm at 18 week of gestation to 1.6mm at 26week of gestation. Fetal aorta diameter correlation with gestational was found to be 0.164 showing weak correlation along with insignificant regression analysis hence the regression equation cannot be formulated for fetal aorta. Conclusion: Normal mean values of fetal pulmonary artery and fetal aorta from 18-26weeks of gestation were calculated. Linear relationship was found between pulmonary artery diameter and gestational age. However weak correlation noted between fetal aorta diameter and gestational age was noted. Keywords: Fetal pulmonary artery; fetal aorta; anamoly scan; three vessel view(3VV); normal range.

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Magnetic resonance angiography of fetal vasculature at 3.0 T

Cited by 19 publications

References 34 publications

Quantitative Flow Imaging in Human Umbilical Vessels In Utero Using Nongated 2D Phase Contrast MRI

Quantitative Flow Imaging in Human Umbilical Vessels In Utero Using Nongated 2D Phase Contrast MRI

Quantitative Evaluation of a Cross-Sectional Area of the Fetal Straight Sinus by Magnetic Resonance Imaging and Its Clinical Value

Establishing Normal Range of Fetal Pulmonary Artery and Fetal Aortic Diameter in 18-26 Weeks of Gestation in Pakistani Population

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