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Inter-vendor 3T R2* mapping evaluation on a standardized R2* phantom with and without a human subject
Justin Yu1, Anshuman Panda1, and Alvin Silva1
1Department of Radiology, Mayo Clinic Arizona, Phoenix, AZ, United States
Standard sequences for quantitative R2* mapping do not precisely measure large R2* values in a phantom. This can lead to errors in LIC quantification for patients with iron overload. Patient specific QA may be necessary for clinical R2* mapping.
Summary of measured R2* values for both volunteers for vendor A and vendor B.
Top: phantom setup with body coil. Middle: sample ROI measuring R2* in one of the phantom’s vials. Bottom: T2 weighted image illustrating positioning of phantom with volunteer.