Abstract #0945

Wideband joint black- and bright-blood late gadolinium enhancement imaging in patients with cardiac implantable devices

Pauline Gut^1,2, Hubert Cochet^2,3, Guido Caluori², Dounia El-Hamrani², Marion Constantin², Konstantinos Valchos², Soumaya Sridi³, Frederic Sacher^2,4, Pierre Jaïs^2,4, Matthias Stuber^1,2,5, and Aurélien Bustin^1,2,3

¹Department of Diagnostic and Interventional Radiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland, ²IHU LIRYC, Electrophysiology and Heart Modeling Institute, Université de Bordeaux – INSERM U1045, Bordeaux, France, ³Department of Cardiovascular Imaging, Hôpital Cardiologique du Haut-Lévêque, CHU de Bordeaux, Bordeaux, France, ⁴Department of Cardiac Pacing and Electrophysiology, Hôpital Cardiologique du Haut-Lévêque, CHU de Bordeaux, Bordeaux, France, ⁵CIBM, Center for Biomedical Imaging, Lausanne, Switzerland

Synopsis

Keywords: Pulse Sequence Design, Tissue Characterization

Motivation: Wideband bright-blood late gadolinium enhancement (LGE) enables artifact-free imaging of myocardial scars in patients with implantable cardioverter defibrillators (ICDs). Unfortunately, the poor scar-blood contrast makes it difficult to depict subendocardial scars.

Goal(s): To improve myocardial scar visualization and localization in ICD patients.

Approach: We propose a 2D breath-hold single-shot ECG-triggered gradient echo wideband joint black- and bright-blood (wideband SPOT) LGE sequence to improve scar visualization and localization, while limiting ICD-artifacts. Wideband was implemented in an adiabatic inversion pulse and in an adiabatic T2 preparation.

Results: Wideband SPOT successfully suppressed ICD-artifacts while improving scar detection, and provided same image quality than reference wideband bright-blood.

Impact: This new technology will enable radiologists and cardiologists to detect and localize myocardial scars more accurately in ICD patients by eliminating ICD hyperintensity artifacts and enhancing scar tissue with unprecedented contrast.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.