Stefano Tambalo1,2, Alberto Finora2, Diego Cavalli2, and Jorge Jovicich1
1CIMeC, University of Trento, Trento, Italy, 2Department of Radiology, G.B. Rossi Hospital, University of Verona, Verona, Italy
1CIMeC, University of Trento, Trento, Italy, 2Department of Radiology, G.B. Rossi Hospital, University of Verona, Verona, Italy
Accuracy and reproducibility of fast T1-mapping in a clinical 3T MRI system is affected by head RF coil and sequence. With a 64-channel receive coil, compressed sensing MP2RAGE is a fast alternative to full-brain T1-mapping in less than 4 min.
Figure 1. Phantom T1-maps derived from the different sequences: IR sequence (left column), MP2RAGE (center column), compressed sensing MP2RAGE (right column). The upper and lower rows show the results from the 20- and 64-channel head RF receive coils, respectively.
Figure 4. Evaluation of brain T1 relaxometry as a function of sequence and RF coil. Top row: Comparison of T1 estimation with 3D sequences versus IR measured in cortical (left panel) and subcortical (right panel) regions. Bottom row: Correlations between T1 estimates from MP2RAGE and csMP2RAGE (64ch coil) from cortical (left panel) and subcortical (right panel) regions.
