Meeting Banner
Abstract #1831

Efficient Use of Acquisition Time in T2 and T1p Relaxation Maps

Jason Mendes1, Nicholas Jacobs1, Eugene Kwan2, Andrew E Arai3, Ravi Ranjan2,3, and Edward V DiBella1
1Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT, United States, 2Cardiovascular Research & Training Institute, University of Utah, Salt Lake City, UT, United States, 3Cardiovascular Medicine, University of Utah, Salt Lake City, UT, United States

Synopsis

Keywords: Quantitative Imaging, Relaxometry

Motivation: T2 and T1p relaxation maps are useful cardiac MR parameters to evaluate myocardial disease. A large portion of the total acquisition time is spent waiting for magnetization recovery rather than data acquisition.

Goal(s): Shortened recovery times and single shot image readouts can more efficiently use the acquisition time to reduce total scan time or acquire more data for improved SNR.

Approach: Combine T1 relaxation maps and signal modelling to correct T2 and T1p relaxation map errors due to shortened post image recovery times and linear single shot image readouts

Results: Corrected cardiac relaxation maps acquired with reduced scan time showed improved quality.

Impact: The acquisition time of T2/T1p relaxation maps can be reduced with shortened recovery times and single-shot image readouts corrected with signal modeling. Alternatively, the same method can be used to increase the accuracy of relaxation maps without increased acquisition time.

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.

Keywords