Fast, accurate 2D-MR relaxation exchange spectroscopy (REXSY): Beyond compressed sensing

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

Interpolated Compressed Sensing for 2D Multiple Slice Fast MR Imaging

Sparse MRI has been introduced to reduce the acquisition time and raw data size by undersampling the k-space data. However, the image quality, particularly the contrast to noise ratio (CNR), decreases with the undersampling rate. In this work, we proposed an interpolated Compressed Sensing (iCS) method to further enhance the imaging speed or reduce data size without significant sacrifice of ima...

متن کامل

Multi Task Bayesian Compressed Sensing in Sparse 2D Spectroscopy

Introduction: J-coupling causes spectral splitting and complicated signal modulation that limit the detection of important brain metabolites, such as Glu, in proton spectroscopic imaging. While 2D spectroscopy, e.g. 2DJPRESS [1] and CTPRESS [2], has been demonstrated to successfully improve signal detection of coupled spins, it carries a penalty in scan time and reconstruction complexity. To co...

متن کامل

Efficient 2D MRI relaxometry using compressed sensing.

Potential applications of 2D relaxation spectrum NMR and MRI to characterize complex water dynamics (e.g., compartmental exchange) in biology and other disciplines have increased in recent years. However, the large amount of data and long MR acquisition times required for conventional 2D MR relaxometry limits its applicability for in vivo preclinical and clinical MRI. We present a new MR pipeli...

متن کامل

A relaxation-assisted 2D IR spectroscopy method.

A method of two-dimensional infrared (2D IR) spectroscopy called relaxation-assisted 2D IR (RA 2DIR) is proposed that utilizes vibrational energy relaxation transport in molecules to enhance cross-peak amplitudes. This method substantially increases the range of distances accessible by 2D IR and is capable of identifying long-range connectivity patterns in molecules. RA 2DIR is illustrated in i...

متن کامل

Compressed Sensing for Multidimensional Spectroscopy Experiments.

Compressed sensing is a processing method that significantly reduces the number of measurements needed to accurately resolve signals in many fields of science and engineering. We develop a two-dimensional variant of compressed sensing for multidimensional spectroscopy and apply it to experimental data. For the model system of atomic rubidium vapor, we find that compressed sensing provides an or...

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: The Journal of Chemical Physics

سال: 2016

ISSN: 0021-9606,1089-7690

DOI: 10.1063/1.4964144