Temperature mapping for transcranial MRgHIFU. A compressed sensing
method called temporally constrained reconstruction (TCR) is used to reconstruct
3D temperature maps during in-vivo brain imaging using k-space data subsampled
with a factor of 6x. 1.5 mm × 2.0 mm × 3.0 mm resolution
(zero-filled to 1.0 mm isotropic spacing), 288 mm × 216 mm × 108
mm FOV, and 1.8 s per time frame was achieved. The rows shown sagittal, axial,
and coronal slices through the 3D imaging volume, and the columns show magnitude
images, temperature maps, and temperature standard deviation maps. From
‘‘Reconstruction of Fully Three-Dimensional High Spatial and
Temporal Resolution MR Temperature Maps for Retrospective Applications”
Nick Todd, Urvi Vyas, Josh de Bever, Allison Payne, and Dennis L. Parker.
Magnetic Resonance in Medicine 67:724–730 (2012). Fig. 4. Reprinted with permission.