Open half-volume quadrature transverse electromagnetic coil for high-field magnetic resonance imaging.
A half-volume quadrature head transverse electromagnetic (TEM) coil has been constructed for 4 T imaging applications. This coil produces a sufficiently large homogeneous B(1) field region for the use as a volume coil. It provides superior transmission efficiency, resulting in significantly lower power deposition, as well as greater sensitivity and improved patient comfort and accessibility compared with conventional full-volume coils. Additionally, this coil suppresses the RF penetration artifact that distorts the RF magnetic field profile and alters the intensity in high-field images recorded with linear surface and volume coils. These advantages make it possible to apply this device as an efficient transmit/receive coil for high-field imaging with a restricted field of view.
Peshkovsky
A S
AS
Department of Medicine/Division of Hematology, Albert Einstein College of Medicine, Bronx, New York, USA.
Kennan
R P
RP
Fabry
M E
ME
Avdievich
N I
NI
D001921:Brain / Q000033:anatomy & histology; D055590:Electromagnetic Phenomena; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D008279:Magnetic Resonance Imaging / Q000295:instrumentation*