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Updated: Apr 8, 2026

A Pipeline to Characterize Structural Heart Defects in the Fetal Mouse
Published on: December 16, 2022
[Cardiac and vascular malformations]
1Abteilung für Diagnostische und Interventionelle Radiologie, Chirurgische Klinik Dr. Rinecker, Am Isarkanal 30, 81379, München, Deutschland, ley@gmx.net.
Insights
This review covers common congenital heart defects, from subtle variations to severe conditions requiring immediate intervention. It highlights echocardiography as the primary diagnostic tool, with CT and MRI used less frequently for complex cases.
Area of Science:
- Cardiovascular Medicine
- Medical Imaging
- Pediatric Cardiology
Context:
- Congenital heart malformations exhibit significant variability, ranging from asymptomatic incidental findings to critical conditions requiring neonatal surgical intervention.
- Echocardiography is the primary diagnostic imaging modality for characterizing cardiac and vascular malformations.
- Advanced imaging techniques like CT and MRI are reserved for complex cases, presenting challenges due to small anatomical structures and physiological parameters in neonates.
Purpose:
- To review the most frequent vascular, cardiac, and complex cardiovascular malformations.
- To discuss diagnostic imaging strategies for congenital heart disease.
- To provide an overview of malformations irrespective of the initial diagnostic imaging modality.
Summary:
- Congenital heart and great vessel malformations vary widely, with some detected incidentally (e.g., persistent left superior vena cava) and others necessitating prompt surgical treatment post-birth.
- Echocardiography remains the gold standard for diagnosing and assessing these malformations, offering detailed morphological and functional insights.
- While CT and MRI are valuable for specific complex cases, challenges in imaging neonates due to size and physiological rates exist; this review encompasses malformations regardless of the primary imaging modality used.
Impact:
- Enhances understanding of the spectrum of congenital cardiovascular malformations.
- Informs diagnostic imaging strategies for pediatric cardiology.
- Provides a comprehensive resource for clinicians managing congenital heart disease.
Abstract:
Malformations of the heart and great vessels show a high degree of variation. There are numerous variants and defects with only few clinical manifestations and are only detected by chance, such as a persistent left superior vena cava or a partial anomalous pulmonary venous connection. Other cardiovascular malformations are manifested directly after birth and need prompt mostly surgical interventions. At this point in time echocardiography is the diagnostic modality of choice for morphological and functional characterization of malformations. Additional imaging using computed tomography (CT) or magnetic resonance imaging (MRI) is only required in a minority of cases. If so, the small anatomical structures, the physiological tachycardia and tachypnea are a challenge for imaging modalities and strategies. This review article presents the most frequent vascular, cardiac and complex cardiovascular malformations independent of the first line diagnostic imaging modality.
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