Meeting Banner
Abstract #4449

Improving the precision of arrhythmia-insensitive rapid (AIR) T1 mapping through optimization of saturation recovery time delay

Kyle Erjin Jeong 1,2 , Kyungpyo Hong 1,2 , and Daniel Kim 2,3

1 Bioengineering Department, University of Utah, Salt Lake City, Utah, United States, 2 Utah Center for Advanced Imaging Research, University of Utah, Salt Lake City, Utah, United States, 3 Department of Radiology, University of Utah, Utah, United States

Arrhythmia insensitive rapid (AIR) cardiac T1 mapping is particularly useful for imaging patients with arrhythmia and/or rapid heart rates. The original AIR pulse sequence was designed with saturation recovery time delay (TD) of 600 ms. We sought to perform numerical simulation to derive an optimal TD to achieve a good balance between precision and scan time. Our numerical experiments show that optimal TD is 780 ms for expected T1 range of 400-2,000 ms at 3T. This simulation framework is adaptable for patients with different heart rates.

This abstract and the presentation materials are available to members only; a login is required.

Join Here