Single-channel demodulator and Hartley transform in MRI.
A single-channel alternative detection system for magnetic resonance imaging and spectroscopy experiments is presented. After the phase error identification, which is realized through a simple method, one can correct the reconstructed image and discriminate between positive and negative frequencies without any loss of the S/N ratio. Since there is only one channel, that is a real signal, it is possible to use the Hartley instead of the Fourier transform. The former is faster and requires less storage memory.
Vassiliadis
K
K
Dept. of Telecommun., Aristotelian Univ., Thessaloniki.
Angelidis
P
P
Sergiadis
G
G