Digital Poster Session - Phantoms & Repeatability I
Quantitative Imaging
Exhibition Halls D/E
Thursday, 08 June 2023 13:45 - 14:45
Validation of the Single Reference Variable Flip Angle T1 mapping method in an innovative phantom
Michael Malmberg1, Henrik L Odéen2, and Dennis L Parker2
1Biomedical Engineering, University of Utah, Salt Lake City, UT, United States, 2Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT, United States
The SR-VFA method of T1 mapping is shown to produce T1 accuracy within 4-10% of both inversion recovery and dual-angle VFA T1 measurements in an innovative phantom.
Figure 3: Bland-Altman plot for comparison between SR-VFA and inversion recovery T1 maps.
Figure 2: Visualization of methods. (A) - CuSO4 and MnCl2 solutions allow for custom T1/T2 combinations within the phantom; (B) - Procedure for filling the phantom; (C) - Picture of phantom pre-fill, with spacers filling alternating sections. Spacers are removed after first filling; (D) - Reconstruction pathway for acquired images. Color coding indicates which scans apply to which T1 map(s).