Multi-Site Multi-Vendor Cross-Validation of Cartilage T1P and T2 Imaging

All data collection will follow the standardized protocol after discussion among the investigative team. Collect phantom data on three days in the first week of month 2 (Nov 2017) to establish the baseline. Collect phantom data once a month for the following three months (Dec 2017, Jan and Feb 2018). Collect scan/rescan data from five human subjects (between Nov 2017- Feb 2018). Transfer data to Cleveland Clinic by Feb 2018 for centralized data analysis.