Title :
Single-channel demodulator and Hartley transform in MRI
Author :
Vassiliadis, Kostas ; Angelidis, Pantelis ; Sergiadis, George
Author_Institution :
Dept. of Telecommun., Aristotelian Univ., Thessaloniki, Greece
fDate :
12/1/1991 12:00:00 AM
Abstract :
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
Keywords :
biomedical NMR; biomedical electronics; demodulators; transforms; Fourier transform; Hartley transform; S/N ratio; magnetic resonance imaging; magnetic resonance spectroscopy; medical diagnostic imaging; negative frequency; phase error identification; positive frequency; reconstructed image correction; single-channel alternative detection system; single-channel demodulator; Bandwidth; Convolution; Demodulation; Error correction; Fourier transforms; Frequency; Hardware; Image reconstruction; Magnetic resonance imaging; Silicon compounds;
Journal_Title :
Medical Imaging, IEEE Transactions on
