Title :
Super-resolution in MRI
Author :
Greenspan, Hayit ; Oz, Gal ; Kiryati, Nahum ; Peled, Sharon
Author_Institution :
Fac. of Eng., Tel Aviv Univ., Israel
Abstract :
In 2D multislice MRI, the resolution in the slice direction is often worse than the in-plane resolution. For certain diagnostic imaging applications, isotropic resolution is necessary but true 3D acquisition methods are not practical. In this case, if the imaging volume is acquired two or more times, with small spatial shifts between acquisitions, combination of the data sets using an iterative superresolution algorithm gives improved resolution and better edge definition in the slice-select direction.
Keywords :
biomedical MRI; image resolution; iterative methods; medical image processing; MR angiography; diagnostic imaging applications; diffusion-weighted imaging; edge definition; in-plane resolution; isotropic resolution; magnetic resolution imaging; medical diagnostic imaging; slice select direction; slice thickness; slice-select direction; through-plane direction; Biomedical imaging; Encoding; High-resolution imaging; Image resolution; Iterative algorithms; Magnetic resonance imaging; Radio frequency; Signal resolution; Spatial resolution; Timing;
Conference_Titel :
Biomedical Imaging, 2002. Proceedings. 2002 IEEE International Symposium on
Print_ISBN :
0-7803-7584-X
DOI :
10.1109/ISBI.2002.1029417
