Implementation of a fast gradient-echo SVD encoding technique for dynamic imaging

Autor:	L P, Panych, C, Oesterle, G P, Zientara, J, Hennig
Rok vydání:	1996
Předmět:	Gadolinium DTPA Fourier Analysis Phantoms Imaging Image Processing Computer-Assisted Organometallic Compounds Contrast Media Humans Signal Processing Computer-Assisted Pentetic Acid Magnetic Resonance Imaging Algorithms
Zdroj:	Magnetic resonance in medicine. 35(4)
ISSN:	0740-3194
Popis:	In the paper, the results of a fast gradient-echo implementation of the singular value decomposition (SVD) encoding technique for dynamic imaging are presented. The method used is an adaptation with several critical modifications of a keyholetype approach previously proposed but not implemented. The method was tested by imaging the events following injection of a contrast agent into a phantom, producing a series of dynamic image updates. It is demonstrated that, for this type of application, the SVD encoding technique adequately follows dynamic changes with even a small number of encodes. The result is compared qualitatively to that obtained by standard Fourier-based keyhole imaging and is shown to provide improved spatial resolution of dynamic events when updating with the same number of encodes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=pmid________::a95e9dcaefa93c368cfb103e4ff9acc2 https://pubmed.ncbi.nlm.nih.gov/8992206 Zobrazit plný text záznamu Plný text