Magnetic Resonance Imaging of Atrial Septal Defects

An atrial septal defect (ASD) is a hole in the heart that can lead to heart failure. Depending on the size and severity of the ASD, They can be treated during a heart catheterization with a special device that can permanently seal the ASD, but knowing the exact size and severity of the ASD is crucial. Newer MRI techniques may provide a better way at diagnosing the size and severity of an ASD. We compared MRI to other standard clinical ways for evaluating an ASD.

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Key information

Conditions

Atrial Septal Defect Cardiovascular Abnormalities Cardiovascular Diseases Congenital Abnormalities Congenital, Hereditary, and Neonatal Diseases and Abnormalities Heart Defects, Congenital Heart Diseases Heart Septal Defects Heart Septal Defects, Atrial

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Duke Cardiovascular Magnetic Resonance Center

Durham, North Carolina, 27710, United States

About this study

Background: Atrial septal defect (ASD) flow can be measured indirectly by velocity-encoded cardiovascular magnetic resonance (veCMR) of the pulmonary artery and aorta (Qp/Qs). Imaging the secundum ASD en face could potentially enable direct flow measurement and, additionally, provide valuable information regarding ASD size, shape, location, and proximity to other structures.

Methods: Patients referred for possible transcatheter ASD closure underwent a comprehensive standard evaluation including transesophageal and/or intracardiac echocardiography (ICE), and invasive oximetry. CMR was performed in parallel and included direct en face veCMR after an optimal double-oblique imaging plane was determined accounting for ASD flow direction and cardiac-cycle interatrial septal motion.

We hypothesized that En face veCMR using an optimized imaging plane can accurately determine ASD flow, size, and morphology, and that it would provide information incremental to comprehensive standard evaluation.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Suspected Atrial Septal Defect (ASD) undergoing evaluation for possible transcatheter closure

Exclusion criteria

Contraindications to magnetic resonance imaging
known sinus venosus or primum defects

Sponsors and collaborators

Lead sponsor

Duke University

Other

Registry information

Official study title

Imaging of Atrial Septal Defects by Velocity Encoded Cardiovascular Magnetic Resonance

Important dates

Study start: 2002
Study completion: 2004
First posted: Jul 10, 2007
Registry last updated: Oct 26, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed