Abstract #2076

Arrhythmia Insensitive Rapid versus Modified Look Locker Inversion Recovery T1 mapping in mitral valve prolapse patients

Ernest Cheung¹, Hui-Chen Han¹, Emma Hornsey¹, Leonid Churilov^2,3, Kyung Pyo Hong⁴, Han Lim^1,2, Julie Smith¹, Daniel Kim⁴, and Ruth Lim^1,2

¹Austin Health, Melbourne, Australia, ²The University of Melbourne, Melbourne, Australia, ³The Florey Institute of Neuroscience and Mental Health, Melbourne, Australia, ⁴Northwestern University, Evanston, IL, United States

We compare two cardiac T1 mapping techniques, arrhythmia insensitive rapid (AIR) which is a saturation recovery technique acquired in a short breath-hold and robust to arrhythmia, and Modified Look-Locker inversion recovery (MOLLI), in 55 patients with mitral valve prolapse. There was excellent inter-reader agreement in T1 values and extracellular volume (ECV) between techniques. However, higher T1 values were observed in AIR compared to MOLLI and vice versa for ECV, consistent with previous studies reporting significantly different T1 and ECV values between inversion recovery and saturation recovery techniques. These differences are important to consider when applying T1 mapping to clinical practice.

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.