TY - GEN
T1 - A New Strategy for Spectroscopic Imaging
AU - Hu, Xiaoping
AU - Patel, Maqbool
AU - Ugurbil, Kamil
AU - Deriche, Mohamed
N1 - Publisher Copyright:
© 1993 IEEE.
PY - 1992
Y1 - 1992
N2 - This paper describes a new approach for reducing ringing artifact in spectroscopic imaging (or chemical shift imaging). In order to reduce the ringing and maintain adequate SNR for the metabolites, the data points in high k-space are measured with one or few excitations while those in the low k-space are sampled with many excitation. By the virtue of this sampling scheme, the data contain more noise in the high spatial frequency region and direct Fourier transform reconstruction will generate a very noisy image. Therefore a technique based on adaptive smoothing is also developed for the reconstruction. From simulated and in vivo proton CSI experiments, we conclude that the technique is a robust technique and can be used for in vivo applications.
AB - This paper describes a new approach for reducing ringing artifact in spectroscopic imaging (or chemical shift imaging). In order to reduce the ringing and maintain adequate SNR for the metabolites, the data points in high k-space are measured with one or few excitations while those in the low k-space are sampled with many excitation. By the virtue of this sampling scheme, the data contain more noise in the high spatial frequency region and direct Fourier transform reconstruction will generate a very noisy image. Therefore a technique based on adaptive smoothing is also developed for the reconstruction. From simulated and in vivo proton CSI experiments, we conclude that the technique is a robust technique and can be used for in vivo applications.
UR - https://www.scopus.com/pages/publications/105044605401
U2 - 10.1109/NSSMIC.1992.301527
DO - 10.1109/NSSMIC.1992.301527
M3 - Conference contribution
AN - SCOPUS:105044605401
T3 - IEEE Conference on Nuclear Science Symposium and Medical Imaging, NSS/MIC 1992
SP - 1328
EP - 1330
BT - IEEE Conference on Nuclear Science Symposium and Medical Imaging, NSS/MIC 1992
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1992 IEEE Conference on Nuclear Science Symposium and Medical Imaging, NSS/MIC 1992
Y2 - 25 October 1992 through 31 October 1992
ER -