466-06-015 ISMRM Abstract

Optimization of Multiple Echo UTE MRI for Pulmonary R2* Mapping at 0.55T and 3T

Primary: Body - Lung

Secondary: Contrast Mechanisms - Relaxometry

466-06-015 · Mid-Field Technology and Sequences · Tuesday, 12 May, 4:55 PM–5:50 PM · Digital Posters Row G

Keywords: Simulations Phantoms Pulmonary Imaging Relaxation rates Multi-parametric mapping

Accepted

Riley B Meyer¹, Mariah L Costa², Conner J Wharff², Abhilash Kizhakke Puliyakote², Andrew D Hahn², Sean Fain ^1,2

¹Roy J. Carver Department of Biomedical Engineering, University of Iowa, Iowa City, United States of America

²Department of Radiology, University of Iowa, Iowa City, United States of America

Presenting Author: Sean Fain

Synopsis

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References

1. Roach DJ, Cremillieux Y, Fleck RJ, et al. Ultrashort Echo-Time Magnetic Resonance Imaging Is a Sensitive Method for the Evaluation of Early Cystic Fibrosis Lung Disease. Ann Am Thorac Soc. 2016;13(11):1923-1931.

2. Hahn AD, Malkus A, Kammerman J, et al. Characterization of R2 * and tissue density in the human lung: Application to neonatal imaging in the intensive care unit. Magn Reson Med. 2020;84(2):920-927.

3. Hahn AD, Malkus A, Kammerman J, et al. Effects of neonatal lung abnormalities on parenchymal R(2) * estimates. J Magn Reson Imaging. 2021;53(6):1853-1861.

4. Li B, Lee NG, Cui SX, Nayak KS. Lung parenchyma transverse relaxation rates at 0.55 T. Magn Reson Med. 2023;89(4):1522-1530.

5. Yu J, Xue Y, Song HK. Comparison of lung T2* during free-breathing at 1.5 T and 3.0 T with ultrashort echo time imaging. Magn Reson Med. 2011;66(1):248-254.

6. Higano NS, Hahn AD, Tkach JA, et al. Retrospective respiratory self-gating and removal of bulk motion in pulmonary UTE MRI of neonates and adults. Magn Reson Med. 2017;77(3):1284-1295.

7. Javed A, Ramasawmy R, O'Brien K, et al. Self-gated 3D stack-of-spirals UTE pulmonary imaging at 0.55T. Magn Reson Med. 2022;87(4):1784-1798.

8. Pipe JG, Menon P. Sampling density compensation in MRI: rationale and an iterative numerical solution. Magn Reson Med. 1999;41(1):179-186.

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/466-06-015