Sayim Gokyar1, Henning U. Voss1, Victor Taracila2, Fraser J. L. Robb2, Douglas J. Ballon1, and Simone Angela Winkler1
1Radiology, Weill Cornell Medicine, New York, NY, United States, 2General Electric Healthcare, Aurora, OH, United States
1Radiology, Weill Cornell Medicine, New York, NY, United States, 2General Electric Healthcare, Aurora, OH, United States
The
proposed body-sized 2D c-HPL architecture promises a new volume body coil
design for UHF MRI comparable to the built-in designs at 3T. In
comparison with existing birdcage (though not functional) and TEM designs it
exhibits lowest SAR as well as lowest
B1+ inhomogeneity and SAR efficiency.
Figure
1.
Different body coil architectures. (a) TEM Coil, (b) birdcage coil, and
(c) 2D c-HPL coil. All coils have a shield length of 1 m and a shield diameter
of 66 cm. Coils have the same length (L)
of 33 cm in longitudinal direction and diameter (D) of 60 cm.
Figure 3. In silico SAR maps of volumetric body coils.
Phantom results (top row) were used to calculate the SAR efficiencies and
realistic body model results (bottom row) were used to verify the previous
results. Color-bars are normalized to 0.1 W/kg.
