Gómez-chiari Marta,  Rebollo Polo Monica,  Planells Mariana,  San Roman Luis,  Eixarch Roca Elisenda,  Perez Cruz Miriam,  Fons Estupiña Maria Del Carmen,  Agut Quijano Thais,  Gonzalez Sandoval Lenia,  Blasco Sola Gerard

Final Pr. ID: Poster #: EDU-026

Fetal central nervous system (CNS) vascular malformations are rare, complex lesions requiring a structured, multidisciplinary approach. Fetal Magnetic Resonance Imaging (MRI) plays a pivotal role in lesion characterization, prognostic assessment, and perinatal planning.
This educational exhibit presents four representative entities—superior sagittal sinus thrombosis (SSST), vein of Galen malformation (VOGM), pial arteriovenous fistula (PAVF), and dural arteriovenous fistula (DAVF)—to illustrate a systematic MRI-based evaluation model integrating anatomic, hemodynamic, and prognostic data.
A vascular evaluation checklist is proposed for consistent interpretation, including:
Identification of abnormal arteriovenous connections (pial vs dural) and the presence or absence of a nidus.
Assessment of arterial feeders for hypertrophy or flow steal.
Evaluation of venous drainage patterns, sinus thrombosis, or aneurysmal venous dilation.
A prognostic checklist complements this approach, focusing on biomarkers of adverse outcome: parenchymal volume loss, white matter abnormalities (including Wallerian degeneration), irregular cortical contour, ventriculomegaly, intracranial hemorrhage, and signs of cardiac overload. In VOGM, a straight or falcine sinus diameter >7 mm identifies high-risk neonates requiring early intervention.
Dedicated fetal vascular MRI sequences—notably 3D time-of-flight (TOF) and angiographic/venographic acquisitions—are crucial for delineating arterial feeders, draining sinuses, and confirming arterialized flow. These sequences improve risk stratification, particularly in high-flow lesions such as VOGM and PAVF, where early recognition of parenchymal injury and hemodynamic impact is essential.
Finally, the integration of genetic testing (e.g., EPHB4, RASA1, ENG, COL4A1/2) refines classification, guides counseling, and identifies syndromic associations.
Overall, combining a structured MRI checklist with prognostic and genetic assessment enables accurate diagnosis, meaningful prenatal counseling, and standardized multidisciplinary management of fetal neurovascular malformations. Read More

Authors:  Gómez-chiari Marta , Rebollo Polo Monica , Planells Mariana , San Roman Luis , Eixarch Roca Elisenda , Perez Cruz Miriam , Fons Estupiña Maria Del Carmen , Agut Quijano Thais , Gonzalez Sandoval Lenia , Blasco Sola Gerard

Keywords:  Vascular Malformations, Vascular Imaging, Fetal Brain MRI

Gupta Rashi,  Dsa Stanley,  Hendi Aditi

Final Pr. ID: Poster #: SCI-059

Three-dimensional (3D) printing typically utilizes CT or MRI data to create patient specific models for detailed visualization and surgical planning. However, relying on a single imaging modality can limit anatomical accuracy. Here, we describe novel methods to produce 3D-printed and VR models of fused multimodal imaging of three complex pediatric craniofacial vascular lesions. Read More

Authors:  Gupta Rashi , Dsa Stanley , Hendi Aditi

Keywords:  3D Printing, Image Fusion, Vascular Imaging

Lacroix Caroline,  Vossough Arastoo

Final Pr. ID: Poster #: SCI-040

Intracranial aneurysms are rare in children. The utility, yield, and effectiveness of screening for aneurysms in children and young adults with a predisposing history for aneurysms or a family history of aneurysms is not known. The purpose of this study is to assess the prevalence of positive imaging studies performed for screening of intracranial aneurysms in children with familial history of intracranial aneurysms, and determine the utility and yield of these studies. Read More

Authors:  Lacroix Caroline , Vossough Arastoo

Keywords:  MRA, Vascular Imaging, Brain

Juang Eric,  Giersch Kristie,  Katz Danielle,  Annam Aparna,  Tutman Jeffrey,  Zavaletta Vaz

Final Pr. ID: Poster #: EDU-049

The purpose of this educational presentation is to delve into the physics of Microvascular Flow Imaging (MVFi) and showcase its significance in the imaging of pediatric vascular anomalies. MVFi complements grayscale and traditional color or power Doppler imaging of vascular malformations.

MVFi is an advanced Doppler ultrasound technique that excels in detecting slow blood flow in smaller vessels and capillaries without the use of a contrast agent. Different vendors utilize proprietary MVFi algorithms to isolate the slow flow signal from tissue artifacts and enhance spatial resolution. However, MVFi algorithms are susceptible to motion and flash artifacts, which can be challenging in young children. Nevertheless, in the appropriate setting, MVFi enables improved delineation of slow-flow lesions through the detection of intravascular slow flow, which may be located in the lesion or in the surrounding tissues.

MVFi can play a vital role in monitoring residual or recurrent disease following intervention. In this work, we will explore the physics through case presentations to illustrate the combined use of MVFi with grayscale and conventional Power Doppler in diagnosing and managing pediatric vascular anomalies with slow flow. Read More

Authors:  Juang Eric , Giersch Kristie , Katz Danielle , Annam Aparna , Tutman Jeffrey , Zavaletta Vaz

Keywords:  Vascular Anomalies, Vascular Imaging, Doppler US

Arguello Fletes Gladys,  Rodriguez Estrella Maria Alejandra,  Acosta Izquierdo Laura

Final Pr. ID: Poster #: EDU-006

Objectives
-Understand the genetic and pathophysiologic basis of the vascular disease in Williams–Beuren syndrome (WBS).
-To show our CT angiography (CTA) protocol tailored for patients with Williams syndrome, optimizing image quality and diagnostic yield while minimizing radiation and contrast exposure.
-To illustrate, through a case-based approach, the spectrum of cardiovascular abnormalities identifiable on CT angiography (CTA), emphasizing the characteristic imaging findings of supravalvar aortic stenosis (SVAS), peripheral pulmonary artery stenosis (PPS), and associated coronary, renal, and systemic arterial stenoses
-Recognize imaging pitfalls and risk features for surgical or anesthetic complication

Teaching points
-CTA provides a single comprehensive evaluation of coronary, pulmonary, systemic, and renal vasculature critical in a disorder where lesions are multifocal.
-SVAS is the dominant lesion; PPS is the most dynamic. CT differentiates between the two and maps to their extent.
-Coronary ostial stenosis is the main cause of sudden cardiac events.
-Renal and systemic arterial lesions explain hypertension and require inclusion of abdominal CTA in baseline studies.
-3D reconstructions are essential for surgical planning and multidisciplinary discussions. Read More

Authors:  Arguello Fletes Gladys , Rodriguez Estrella Maria Alejandra , Acosta Izquierdo Laura

Keywords:  Cardiovascular, 3D Images, Vascular Imaging