Zuckerberg San Francisco General Hospital 1 article published in JoVE Medicine Quantitative [18F]-Naf-PET-MRI Analysis for the Evaluation of Dynamic Bone Turnover in a Patient with Facetogenic Low Back Pain Nathaniel W. Jenkins1, Claudia Iriondo1,2, Vinil Shah1, Emma Bahroos1, Vahid Ravanfar1,1, Melanie Regan1, Youngho Seo1, William P. Dillon1, Sharmila Majumdar1, Jason F. Talbott1,3 1Radiology and Biomedical Imaging, University of California San Francisco, 2UCSF/UC Berkeley Graduate Program in Bioengineering, University of California San Francisco, 3Radiology and Biomedical Imaging, Zuckerberg San Francisco General Hospital Imaging techniques that reflect dynamic bone turnover may aid in characterizing a wide range of bone pathologies. We present detailed methodologies for performing and analyzing dynamic [18F]-NaF-PET-MRI data in a patient with facetogenic low back pain using the lumbar facet joints as a prototypical region of interest.