Cory R. Wyatt1 and Alexander R. Guimaraes2
1Oregon Health and Science University, Portland, OR, United States, 2Diagnostic Radiology, Oregon Health and Science University, Portland, OR, United States
1Oregon Health and Science University, Portland, OR, United States, 2Diagnostic Radiology, Oregon Health and Science University, Portland, OR, United States
In this study, seiffert spirals are used to acquire 3D k-space in an MRF acquisition of an isotropic 3D volume for the quantification of T1 and T2 relaxation times. Efficient acquisition of high resolution relaxation maps are obtained in 3 minutes in the human brain.
Figure 1: (A) One of the eight
interleaves of the proposed seiffert spiral (B) All eight interleaves of the
seiffert spiral (C) 120 random interleaves of the fully sampled acquisition (D)
Flip angle modulation segment that is repeated every 800 TRs.
Figure 4: T1 (top) and T2
(bottom) relaxation maps obtained with the proposed 3D MRF sequence in the
brain of a healthy volunteer.
