Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
563-02-009 ISMRM Abstract

Feasibility and Repeatability of UTE-Adiabatic-T1ρ for whole-knee assessment

Primary: Musculoskeletal - Whole Joint
Secondary: Contrast Mechanisms - Relaxometry
563-02-009 · Cartilage 2026 · Wednesday, 13 May, 9:15 AM–10:10 AM · Digital Posters Row D
Keywords: Musculoskeletal MRI Knee cartilage T1rho mapping Adiabatic Pulse
Accepted
Hector Lise de Moura1, Mahesh B Keerthivasan2, Marcelo V Zibetti 1,3,4, Ravinder R Regatte1,3
1The Center for Advanced Imaging Innovation and Research (CAI2R), Department of Radiology, NYU Grossman School of Medicine, New York, United States of America
2Siemens Medical Solutions USA, Inc., Malvern, United States of America
3The Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, NYU Grossman School of Medicine, New York, United States of America
4Department of Radiology, New York University Grossman School of Medicine, New York, United States of America
Presenting Author: Marcelo V Zibetti

Synopsis

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References

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2. Regatte RR, Akella SVS, Lonner JH, Kneeland JB, Reddy R. T1ρ relaxation mapping in human osteoarthritis (OA) cartilage: Comparison of T1ρ with T2. Journal of Magnetic Resonance Imaging. 2006;23(4):547-553. doi:10.1002/jmri.20536 [doi]
3. Mitrea BG, Krafft AJ, Song R, Loeffler RB, Hillenbrand CM. Paired self-compensated spin-lock preparation for improved T1ρ quantification. J Magn Reson. 2016;268:49-57. doi:10.1016/J.JMR.2016.04.017 [doi]
4. Gram M, Seethaler M, Gensler D, Oberberger J, Jakob PM, Nordbeck P. Balanced spin-lock preparation for B1-insensitive and B0-insensitive quantification of the rotating frame relaxation time T1ρ. Magn Reson Med. 2021;85(5):2771-2780. doi:10.1002/mrm.28585 [doi]
5. Casula V, Autio J, Nissi MJ, et al. Validation and optimization of adiabatic T1ρ and T2ρ for quantitative imaging of articular cartilage at 3 T. Magn Reson Med. 2017;77(3):1265-1275. doi:10.1002/mrm.26183 [doi]
6. Pang Y. An adiabatic RF pulse in spin‐lock preparations: A double‐edged sword for quantitative R1ρ imaging in clinical applications. NMR Biomed. 2023;36(9):8-10. doi:10.1002/nbm.4953 [doi]
7. de Moura HL, Keerthivasan MB, Zibetti MVW, Su P, Alaia MJ, Regatte R. Feasibility of a UTE Stack-of-Spirals Sequence for Biexponential T1ρ Mapping of Whole Knee Joint. NMR Biomed. 2025;38(3):e70008. doi:10.1002/NBM.70008 [doi]
8. Tesiram YA, Bendall MR. Universal Equations for Linear Adiabatic Pulses and Characterization of Partial Adiabaticity. Journal of Magnetic Resonance. 2002;156(1):26-40. doi:10.1006/JMRE.2002.2531 [doi]
9. Tannús A, Garwood M. Adiabatic pulses. NMR Biomed. 1997;10(8):423-434. doi:10.1002/(SICI)1099-1492(199712)10:8<423::AID-NBM488>3.0.CO;2-X [doi]

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http://echo.ismrm.org/p/ISMRM2026/563-02-009