Age Dependence of the Metabolite Diffusion Tensor in Human Brain using Proton-Echo-Planar-Spectroscopic-Imaging

نویسندگان

  • Alec Landow
  • Elena Ackley
  • Stephen R. Dager
  • Dennis Shaw
  • Mindy Dixon
  • Stefan Posse
چکیده

Figure 1: Trace/3 ADC, FA and RA maps of Cho, Cr, NAA and water in subject 1. 7040 Age Dependence of the Metabolite Diffusion Tensor in Human Brain using Proton-Echo-Planar-Spectroscopic-Imaging Alec Landow, Elena Ackley, Stephen R. Dager, Dennis Shaw, Mindy Dixon, and Stefan Posse Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM, United States, Department of Neurology, University of New Mexico, Albuquerque, NM, United States, Department of Radiology, University of Washington, Seattle, WA, United States, Seattle Children's Hospital, Seattle, WA, United States

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Sensitivity Encoded Proton Echo Planar Spectroscopic Imaging (PEPSI) in Human Brain at 7 Tesla

choline, glutamate and inositol (32x32 matrix) with 2-fold SENSE acceleration. Fig.3 Fully sampled PEPSI maps of non-suppressed water (64x64 matrix) and metabolite maps of NAA, creatine, choline, glutamate and inositol (32x32 matrix), acquired in 8.5 min with 0.63 cc voxel size. Fig.1 Non-water-suppressed PEPSI maps on phantom at 7 T show good reconstruction performance for up to 4-fold acceler...

متن کامل

Diffusion-weighted Line-scan Echo-planar Spectroscopic Imaging for Improved Accuracy in Metabolite Diffusion Imaging

Fig. 3. DWSI of rat brain using (a) DW-EPSI and (b) DW-LSEPSI. The left images show NAA maps and the right graphs show average spectra in the red rectangles in the left images. Yellow lines in the left images show edges of a rat head. (c) ADC map of NAA using DW-LSEPSI. Color represents ADC value. Fig. 1. Sequence diagram of DW-LSEPSI. Diffusion-weighted Line-scan Echo-planar Spectroscopic Imag...

متن کامل

Diffusion-tensor MR imaging of the human brain with gradient- and spin-echo readout: technical note.

Diffusion-tensor MR imaging of the brain is an objective method that can measure diffusion of water in tissue noninvasively. Five adult volunteers participated in this study that was performed to evaluate the potential of gradient- and spin-echo readout for diffusion-tensor imaging by comparing it with single-shot spin-echo echo-planar imaging. Gradient- and spin-echo readout provides comparabl...

متن کامل

Accelerated Proton Echo-Planar Spectroscopic Imaging Using Parallel Imaging and Compressed Sensing

INTRODUCTION: Proton Echo-Planar Spectroscopic Imaging (PEPSI) provides fast spatial-spectral encoding and has been demonstrated to map a variety of metabolites in the human brain [1,2]. Further acceleration in PEPSI can be accomplished by using parallel imaging along the phaseencoding dimension(s) [3,4]. However, the acceleration is limited by the relatively low SNR of the metabolites and g-fa...

متن کامل

MR imaging, MR spectroscopy, and diffusion tensor imaging of sequential studies in neonates with encephalopathy.

BACKGROUND Although the imaging, spectroscopic, and diffusion characteristics of brains of infants with neonatal encephalopathy have been described, the time course during which these changes evolve is not clear. The results of sequential MR imaging studies--including anatomic MR imaging, proton MR spectroscopy, and diffusion tensor imaging (DTI)--of 10 patients enrolled prospectively in a stud...

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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2013