Abstract #1484

Cardiovascular MR Multitasking T1-T2 Joint Mapping in Healthy Subjects and Cardiomyopathy Patients on both 1.5T and 3T

Xianglun Mao¹, Hsu-Lei Lee², Katerina Eyre³, Debiao Li^2,4, Anthony G Christodoulou^4,5, Matthias G Friedrich^3,6, Michael Salerno⁷, and Martin A Janich⁸

¹Applied Science Lab West, GE HealthCare, Menlo Park, CA, United States, ²Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, United States, ³McGill University Health Centre, Mentreal, QC, Canada, ⁴Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, United States, ⁵Department of Radiological Sciences, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States, ⁶Area 19, Montreal, QC, Canada, ⁷Departments of Medicine and Radiology, Stanford University, Palo Alto, CA, United States, ⁸Applied Science Lab Europe, GE HealthCare, Munich, Germany

Synopsis

Keywords: Myocardium, Quantitative Imaging, Free-breathing, Multi-parametric Mapping

Motivation: CMR Multitasking has shown promise for non-ECG and free-breathing myocardial T1/T2 mapping in the heart, primarily on a single vendor 3T, but 2D T1-T2 CMR Multitasking has not yet been shown for different vendors (e.g., GE) and field strengths (e.g., 1.5T).

Goal(s): To extend 2D T1-T2 CMR Multitasking to 1.5T and 3.0T GE MR systems.

Approach: We implemented a 2D T1-T2 CMR Multitasking sequence on GE MR systems and evaluated its performance in healthy volunteers and patients at two sites.

Results: 2D T1-T2 CMR Multitasking generated T1 and T2 maps with image quality comparable to the reference measurements.

Impact: 2D T1-T2 CMR Multitasking provides an efficient and subject friendly (free-breathing, non-ECG) option for quantitative CMR assessment across sites and vendors.

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.