Editors for Acta Materialia
Updated: 2009-12-30 15:21:32
(Source: Acta Materialia)
Conclusion nbsp;Wavelet encoding is suitable for small FOV imaging in dynamic MRI studies.
Content Type Journal ArticleCategory Research ArticleDOI 10.1007/s10334-009-0193-zAuthors
Hacene Serrai, National Research Council of Canada, Institute for Biodiagnostics 435 Ellice Avenue Winnipeg MB R3X 2C6 CanadaRichard Young, National Research Council of Canada, Institute for Biodiagnostics 435 Ellice Avenue Winnipeg MB R3X 2C6 Canada
Journal Magnetic Resonance Materials in Physics, Biology and MedicineOnline ISSN 1352-8661Print ISSN 0968-5243 (Source: Magnetic Resonance Materials in Physics, Biology and Medicine)
Conclusion nbsp;Using the simulation framework and metrics described the interaction of different spatial encoding approaches could be investigated.
Regular sub-sampling provided optimal reconstruction, independent of whether the spatial encoding was achieved by gradients
only or a combination of gradient and RF.
Content Type Journal ArticleCategory Research ArticleDOI 10.1007/s10334-009-0191-1Authors
Rita G. Nunes, Hammersmith Campus, Imperial College Robert Steiner MR Unit, Imaging Sciences Department Du Cane Road London W12 0NN UKJoseph V. Hajnal, Hammersmith Campus, Imperial College Robert Steiner MR Unit, Imaging Sciences Department Du Cane Road London W12 0NN UKDavid J. Larkman, Hammersmith Campus, Imperial College Robert Steiner MR Unit, Imaging Sciences Department ...MedWorm Message: Get the very latest Swine Flu news via the MedWorm Swine Flu RSS news feed - updated hourly from thousands of authoritative health and news sources.
Abstract
Introduction nbsp;Eddy currents induced by switching of magnetic field gradients can lead to distortions in short echo-time spectroscopy or
diffusion weighted imaging. In small bore magnets, such as human head-only systems, minimization of eddy current effects is
more demanding because of the proximity of the gradient coil to conducting structures.
Methods nbsp;In the present study, the eddy current behavior achievable on a recently installed 7 tesla—68 m bore head-only magnet was
characterized.
Results nbsp;Residual effects after compensation were shown to be on the same order of magnitude as those measured on two whole body systems
(3 and 4.7 T), while using two to three fold increased gradient slewrates.
Content Type Journal A...