Improved susceptibility weighted imaging method using multi-echo acquisition

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Improved susceptibility weighted imaging method using multi-echo acquisition.

PURPOSE To introduce novel acquisition and postprocessing approaches for susceptibility weighted imaging (SWI) to remove background field inhomogeneity artifacts in both magnitude and phase data. METHODS The proposed method acquires three echoes in a three-dimensional gradient echo (GRE) sequence, with a field compensation gradient (z-shim gradient) applied to the third echo. The artifacts in...

متن کامل

Isotropic resolution in Diffusion Weighted Imaging using 3D multi-slab, multi-echo Echo Planar Imaging

INTRODUCTION Diffusion weighted Magnetic Resonance Imaging (DWI) is usually performed using a 2D single shot echo planar imaging technique, because it generates good SNR, short scan times and is immune to phase differences between diffusion-encoded excitations. 2D DWEPI can be acquired with a reasonably high in-plane resolution, especially if parallel imaging is used to reduce the geometric dis...

متن کامل

Dynamic Susceptibility Contrast Imaging using a multi-echo spiral sequence

Introduction To characterize microvasculature, one can perform a DCE-MRI experiment (a first injection of contrast agent (CA) to estimate the vessel wall permeability) followed by a DSC-MRI experiment (a second injection of CA to estimate relative blood volume (rCBV), relative blood flow, etc.) [1]. The DSC experiment can even yield information on vessel size if a gradient echo and a spin echo ...

متن کامل

A Comparison Study of Single-Echo Susceptibility Weighted Imaging and Combined Multi-Echo Susceptibility Weighted Imaging in Visualizing Asymmetric Medullary Veins in Stroke Patients

BACKGROUND Asymmetric medullary veins (AMV) are frequently observed in stroke patients and single-echo susceptibility weighted imaging (SWIs) is the main technique in detecting AMV. Our study aimed to investigate which echo time (TE) on single-echo susceptibility is the optimal echo for visualizing AMV and to compare the ability in detecting AMV in stroke patients between SWIs and multi-echo su...

متن کامل

Ghost-Free Spin-Echo Echo Planar Imaging Method for Diffusion Weighted Images using Adaptive RF Pulses

Y. Han, J. Hwang, J-Y. Chung, H. Park Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea, Republic of Introduction Diffusion tensor imaging (DTI) can provide valuable information regarding brain connectivity and neurological diseases. However, acquiring DTI is not an easy process because it has to be acquired in a short period of time with h...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Magnetic Resonance in Medicine

سال: 2013

ISSN: 0740-3194

DOI: 10.1002/mrm.24940