Abstract #2540

Dependence of RF Lesion Visibility in Native T1-weighted MRI on Time after RF Ablation

Eugene G. Kholmovski^1,2, Ravi Ranjan², Sathya Vijayakumar^1,2, Nathan A. Angel², and Nassir F. Marrouche²

¹UCAIR, Department of Radiology, University of Utah, Salt Lake City, UT, United States, ²CARMA Center, University of Utah, Salt Lake City, UT, United States

Catheter RF ablation is a widely accepted procedure for treatment of cardiac arrhythmias. Recently, native (non-contrast) T1-weighted (T1w) MRI was proposed to characterize RF lesions immediately post-ablation. The main aim of this work was to study how the visibility and volume of RF lesions in native T1w MRI changes with time after ablation. We have found that reduction of T1 relaxation time of RF ablated myocardium is transient. The visibility of RF ablation lesions and volume of the corresponding enhanced regions in native T1w MRI drastically reduce few days after ablation.

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.