Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition
9 May 2026 – 14 May 2026 · Cape Town, South Africa
469-04-007 ISMRM Abstract

Longitudinal Changes in Myosteatosis and Cross-Sectional Muscle Area Following Bariatric Surgery

Primary: Musculoskeletal - Muscle
Secondary: Body - Body Composition
469-04-007 · MRI and MRS in Muscle in Health and Disease · Tuesday, 12 May, 2:35 PM–3:30 PM · Digital Posters Row J
Keywords: Metabolism Treatment Response Bariatric surgery Weight-loss Fat Fraction
Accepted
Felix Schön 1,2, Norah J Duritsa1, David T Harris1, Julius F Heidenreich1,3, Luke Funk4,5, Claude B Sirlin6, Scott B Reeder1,7,8,9,10,11, Diego Hernando1,8
1Department of Radiology, University of Wisconsin - Madison, Madison, United States of America
2Institute and Polyclinic for Diagnostic and Interventional Radiology, Faculty of Medicine and University Hospital Carl Gustav Carus Dresden, TU Dresden, Dresden, Germany
3Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Würzburg, Germany
4Department of Surgery, University of Wisconsin - Madison, Madison, United States of America
5Department of Surgery, William S. Middleton Memorial VA, Madison, Wisconsin, United States of America
6Department of Radiology, University California San Diego, United States of America
7University of Wisconsin - Madison, Madison, United States of America
8Department of Medical Physics, University of Wisconsin - Madison, Madison, United States of America
9Department of Biomedical Engineering, University of Wisconsin - Madison, Madison, United States of America
10Department of Medicine, University of Wisconsin - Madison, Madison, United States of America
11Department of Emergency Medicine, University of Wisconsin - Madison, Madison, United States of America
Presenting Author: Felix Schön

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References

1. World Health Organization. Obesity and overweight. 2025. Accessed October 14, 2025. https://www.who.int/news-room/fact-sheets/detail/obesity-and-overweight
2. Koo BK. Assessment of Muscle Quantity, Quality and Function. J Obes Metab Syndr. 2022;31(1):9-16. doi:10.7570/jomes22025 [doi]
3. Nuijten MAH, Eijsvogels TMH, Monpellier VM, Janssen IMC, Hazebroek EJ, Hopman MTE. The magnitude and progress of lean body mass, fat‐free mass, and skeletal muscle mass loss following bariatric surgery: A systematic review and meta‐analysis. Obes Rev. 2022;23(1):e13370. doi:10.1111/obr.13370 [doi]
4. Xie Y, Zhan C, Tao H, et al. Longitudinal variations of paraspinal muscle fatty infiltration in obese patients after bariatric surgery. Eur Spine J. Published online June 11, 2025. doi:10.1007/s00586-025-08970-2 [doi]
5. Han E, Kim MK, Lee HW, et al. Myosteatosis Predicts Bariatric Surgery Response: A Longitudinal Study in Patients With Morbid Obesity. J Clin Endocrinol Metab. 2025;110(5):e1385-e1394. doi:10.1210/clinem/dgae567 [doi]
6. Pacicco T, Ratner S, Xi Y, et al. Pelvic muscle size and myosteatosis: Relationship with age, gender, and obesity. Indian J Radiol Imaging. 2019;29(02):155-162. doi:10.4103/ijri.IJRI_414_18 [doi]
7. Fedorov A, Beichel R, Kalpathy-Cramer J, et al. 3D Slicer as an image computing platform for the Quantitative Imaging Network. Magn Reson Imaging. 2012;30(9):1323-1341. doi:10.1016/j.mri.2012.05.001 [doi]
8. van de Laar AW, Van Rijwijk AS, Kakar H, et al. Sensitivity and specificity of 50% excess weight loss (50%EWL) and twelve other bariatric criteria for weight loss success. Obes Surg. 2018;28(8):2297-2304. doi:10.1007/s11695-018-3173-4. [doi]
9. Aleixo GFP, Shachar SS, Nyrop KA, et al. Myosteatosis and prognosis in cancer: Systematic review and meta-analysis. Crit Rev Oncol Hematol. 2020;145:102839. doi:10.1016/j.critrevonc.2019.102839 [doi]
10. Voican CS, Lebrun A, Maitre S, et al. Predictive score of sarcopenia occurrence one year after bariatric surgery in severely obese patients. PLoS ONE. 2018;13(5):e0197248. doi:10.1371/journal.pone.0197248 [doi]

Cite this abstract

http://echo.ismrm.org/p/ISMRM2026/469-04-007