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Abstract #5007

Intraplatform Repeatability and Interplatform Reproducibility of T1 and T2 Mapping Using a NIST System Phantom

Justin Yu1, Erika M Rand1, Pamela R Jackson2, Joseph M Hoxworth1, Leland S Hu1, Kristin R Swanson2, and Yuxiang Zhou1
1Radiology, Mayo Clinic Arizona, Phoenix, AZ, United States, 2Neurosurgery, Mayo Clinic Arizona, Phoenix, AZ, United States

Synopsis

Quantitative magnetic resonance imaging, especially T1/T2 relaxation time mapping is increasingly used in both research and clinical practice. The purpose of this study was to assess the precision and cross-platform repeatability and reproducibility of T1 and T2 mapping modules on GE and Siemens MRI platforms, with the goal of standardization across vendors. A standard MRI quantitative phanom was scanned on four scanners, twice per scanner. GE data was processed with a custom script. Our results show high intraplatform repeatability, but showed high inter-platform discrepancies for both T1 and T2 results.

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Keywords