Parallel Magnetic Resonance Imaging
DOWNLOAD
Download Parallel Magnetic Resonance Imaging PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Parallel Magnetic Resonance Imaging book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Parallel Magnetic Resonance Imaging
DOWNLOAD
Author : Florian Wiesinger
language : en
Publisher:
Release Date : 2005
Parallel Magnetic Resonance Imaging written by Florian Wiesinger and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
Parallel Magnetic Resonance Imaging Methods And Applications
DOWNLOAD
Author : Mark Griswold
language : en
Publisher:
Release Date : 2002
Parallel Magnetic Resonance Imaging Methods And Applications written by Mark Griswold and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
Regularized Image Reconstruction In Parallel Mri With Matlab
DOWNLOAD
Author : Joseph Suresh Paul
language : en
Publisher: CRC Press
Release Date : 2019-11-05
Regularized Image Reconstruction In Parallel Mri With Matlab written by Joseph Suresh Paul and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-11-05 with Medical categories.
Regularization becomes an integral part of the reconstruction process in accelerated parallel magnetic resonance imaging (pMRI) due to the need for utilizing the most discriminative information in the form of parsimonious models to generate high quality images with reduced noise and artifacts. Apart from providing a detailed overview and implementation details of various pMRI reconstruction methods, Regularized image reconstruction in parallel MRI with MATLAB examples interprets regularized image reconstruction in pMRI as a means to effectively control the balance between two specific types of error signals to either improve the accuracy in estimation of missing samples, or speed up the estimation process. The first type corresponds to the modeling error between acquired and their estimated values. The second type arises due to the perturbation of k-space values in autocalibration methods or sparse approximation in the compressed sensing based reconstruction model. Features: Provides details for optimizing regularization parameters in each type of reconstruction. Presents comparison of regularization approaches for each type of pMRI reconstruction. Includes discussion of case studies using clinically acquired data. MATLAB codes are provided for each reconstruction type. Contains method-wise description of adapting regularization to optimize speed and accuracy. This book serves as a reference material for researchers and students involved in development of pMRI reconstruction methods. Industry practitioners concerned with how to apply regularization in pMRI reconstruction will find this book most useful.
Development And Application Of Efficient Strategies For Parallel Magnetic Resonance Imaging
DOWNLOAD
Author : Felix Breuer
language : en
Publisher:
Release Date : 2006
Development And Application Of Efficient Strategies For Parallel Magnetic Resonance Imaging written by Felix Breuer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
Parallel Magnetic Resonance Imaging
DOWNLOAD
Author : Swati Rane
language : en
Publisher: VDM Publishing
Release Date : 2008-01
Parallel Magnetic Resonance Imaging written by Swati Rane and has been published by VDM Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-01 with Medical categories.
Parallel Magnetic Resonance Imaging has had a significant impact in rapid and real time MR imaging. With multiple images captured within a fraction of a second, this method has facilitated real time cardiac imaging and intra operative imaging with ease. This method uses an array of coils with extremely localized sensitivities, thereby reducing the effective field of view that is unique to every coil element. Subsequent sub-sampling of the k space data obtained from each coil therefore results in a set of aliased images. Parallel imaging reconstruction then involves the restoration of the desired image by spatial re-arrangement of the aliased data in the image domain or by estimation of the full k space data with the help of the coil sensitivity profiles. Different reconstruction techniques have been proposed to regenerate the complete alias-free image. The reconstruction greatly depends on the coil sensitivity profiles and k space subsampling schemes. The results vary considerably according to the reconstruction method adopted. This work briefly describes the most popular image reconstruction techniques used in the field and provides a detailed analysis for the selection of the optimal method of image reconstruction based on various parallel imaging parameters and popular image quality markers such as SNR and artifact power.
Parallel Magnetic Resonance Imaging
DOWNLOAD
Author : Swati Dnyandeo Rane
language : en
Publisher:
Release Date : 2005
Parallel Magnetic Resonance Imaging written by Swati Dnyandeo Rane and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
Magnetic Resonance Imaging (MRI) is now increasingly being used for fast imaging applications such as real-time cardiac imaging, functional brain imaging, contrast enhanced MRI, etc. Imaging speed in MRI is mainly limited by different imaging parameters selected by the pulse sequences, the subject being imaged and the RF hardware system in operation. New pulse sequences have been developed in order to decrease the imaging time by a faster k-space scan. However, they may not be fast enough to facilitate imaging in real time. Parallel MRI (pMRI), a technique initially used for improving image SNR, has emerged as an effective complementary approach to reduce image scan-time. Five methods, viz., SENSE [Pruesmann, 1999], PILS [Griswold, 2000], SMASH [Sodickson, 1997], GRAPPA [Griswold, 2002] and SPACERIP [Kyriakos, 2000]; developed in the past decade have been studied, simulated and compared in this research. Because of the dependence of the parallel imaging methods on numerous factors such as receiver coil configuration, k-space subsampling factor, k-space coverage in the imaging environment, there is a critical need to find the method giving the best results under certain imaging conditions. The tools developed in this research help the selection of the optimal method for parallel imaging depending on a particular imaging environment and scanning parameters. Simulations on real MR phased-array data show that SENSE and GRAPPA provide better image reconstructions when compared to the remaining techniques.
Parallel Imaging In Clinical Mr Applications
DOWNLOAD
Author : Stefan O. Schönberg
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-01-11
Parallel Imaging In Clinical Mr Applications written by Stefan O. Schönberg and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-01-11 with Medical categories.
This book presents the first in-depth introduction to parallel imaging techniques and, in particular, to the application of parallel imaging in clinical MRI. It will provide readers with a broader understanding of the fundamental principles of parallel imaging and of the advantages and disadvantages of specific MR protocols in clinical applications in all parts of the body at 1.5 and 3 Tesla.
On Optimality And Efficiency Of Parallel Magnetic Resonance Imaging Reconstruction
DOWNLOAD
Author : Roger Nana
language : en
Publisher:
Release Date : 2008
On Optimality And Efficiency Of Parallel Magnetic Resonance Imaging Reconstruction written by Roger Nana and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Imaging systems categories.
Imaging speed is an important issue in magnetic resonance imaging (MRI), as subject motion during image acquisition is liable to produce artifacts in the image. However, the speed at which data can be collected in conventional MRI is fundamentally limited by physical and physiological constraints. Parallel MRI is a technique that utilizes multiple receiver coils to increase the imaging speed beyond previous limits by reducing the amount of acquired data without degrading the image quality. In order to remove the image aliasing due to k-space undersampling, parallel MRI reconstructions invert the encoding matrix that describes the net effect of the magnetic field gradient encoding and the coil sensitivity profiles. The accuracy, stability, and efficiency of a matrix inversion strategy largely dictate the quality of the reconstructed image. This thesis addresses five specific issues pertaining to this linear inverse problem with practical solutions to improve clinical and research applications.
Non Cartesian Parallel Magnetic Resonance Imaging
DOWNLOAD
Author : Robin Heidemann
language : en
Publisher:
Release Date : 2007
Non Cartesian Parallel Magnetic Resonance Imaging written by Robin Heidemann and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
Instrumentation For Parallel Magnetic Resonance Imaging
DOWNLOAD
Author : David Gerald Brown
language : en
Publisher:
Release Date : 2007
Instrumentation For Parallel Magnetic Resonance Imaging written by David Gerald Brown and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
Parallel magnetic resonance (MR) imaging may be used to increase either the throughput or the speed of the MR imaging experiment. As such, parallel imaging maybe accomplished either through a "parallelization" of the MR experiment, or by the use of arrays of sensors. In parallelization, multiple MR scanners (or multiple sensors) are used to collect images from different samples simultaneously. This allows for an increase in the throughput, not the inherent speed, of the MR experiment. Parallel imaging with arrays of sensor coils, on the other hand, makes use of the spatial localization properties of the sensors in an imaging array to allow a reduction in the number of phase encodes required in acquiring an image. This reduced phase-encoding requirement permits an increase in the overall imaging speed by a factor up to the number of sensors in the imaging array. The focus of this dissertation has been the development of cost-effective instrumentation that would enable advances in the state of the art of parallel MR imaging. First, a low-cost desktop MR scanner was developed (