Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Editorial Board
(Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering)
Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering - October 1, 2013 Category: Radiology Tags: Editorial Board Source Type: research

NMR Concepts
(Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering)
Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering - August 12, 2013 Category: Radiology Tags: NMR Concepts Source Type: research

Basic Concepts in NMR
(Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering)
Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering - August 12, 2013 Category: Radiology Tags: DVD Review Source Type: research

Design and implementation of an FPGA‐based timing pulse programmer for pulsed‐electron paramagnetic resonance applications
ABSTRACT The design, construction, and implementation of a field‐programmable gate array (FPGA)‐based pulse programmer for pulsed‐electron paramagnetic resonance experiments is described. The FPGA pulse programmer offers advantages in design flexibility and cost over previous pulse programmers, which are based on commercial digital delay generators, logic pattern generators, and application‐specific integrated circuit designs. The FPGA pulse progammer features a novel transition‐based algorithm and command protocol, which is optimized for the timing structure required for most pulsed magnetic resonance experiment...
Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering - August 12, 2013 Category: Radiology Authors: Li Sun, Joshua J. Savory, Kurt Warncke Tags: Research Article Source Type: research

Evaluation of a new 1H/31P dual‐tuned birdcage coil for 31P spectroscopy
ABSTRACT We introduce a new dual‐tuned hydrogen/phosphorus (1H/31P) birdcage coil, referred to as split birdcage coil, and evaluate its performance using both simulations and magnetic resonance (MR) experiments on a 3 T MR scanner. The proposed coil simplifies the practical matters of tuning and matching, which makes the coil easily reproducible. Simulations were run with the finite difference in time domain method to evaluate the sensitivity and homogeneity of the magnetic field generated by the proposed 1H coils. Following simulations, MR experiments were conducted using both a phantom and human thigh to compare the pr...
Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering - August 12, 2013 Category: Radiology Authors: W.M. Potter, L. Wang, K.K. McCully, Q. Zhao Tags: Research Article Source Type: research

Performance of a novel NMR apparatus with a solenoidal tape‐shaped antenna and a split‐type superconducting magnet
In this study, the line shape of the spectrum was improved by reducing the residual magnetization of the antenna coil using a low‐magnetic sheet laminated with a tungsten sheet and a copper sheet. The measured SNR showed a good agreement with the predicted value, and the result shows the validity of this approach to improve the SNR based on the theoretical prediction. In this article, the outline and the performance of the NMR system are reported. © 2013 Wiley Periodicals, Inc. Concepts Magn Reson Part B (Magn Reson Engineering) 43B: 79‐89, 2013 (Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering)
Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering - August 12, 2013 Category: Radiology Authors: Tsuyoshi Wakuda, Minseok Park, Kenji Kawasaki, Hiroyuki Tanaka, Yuzo Fukuda, Michiya Okada, Hitoshi Kitaguchi Tags: Research Article Source Type: research

Editorial Board
(Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering)
Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering - August 1, 2013 Category: Radiology Tags: Editorial Board Source Type: research

NMR Concepts
(Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering)
Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering - April 24, 2013 Category: Radiology Tags: NMR Concepts Source Type: research

Design of a quadrature surface coil for hyperpolarized 13C MRS cardiac metabolism studies in pigs
ABSTRACT This work describes the design of a quadrature surface coil constituted by a circular loop and a butterfly coil, employed in transmit/receive (TX/RX) mode for hyperpolarized 13C studies of pig heart with a clinical 3T scanner. The coil characterization is performed by developing an SNR model for coil performance evaluation in terms of coil resistance, sample‐induced resistance and magnetic field pattern. Experimental SNR‐vs.‐depth profiles, extracted from the [1–13C]acetate phantom chemical shift image (CSI), showed good agreement with the theoretical SNR‐vs.‐depth profiles. Moreover, the performance o...
Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering - April 24, 2013 Category: Radiology Authors: G. Giovannetti, F. Frijia, V. Hartwig, S. Attanasio, L. Menichetti, N. Vanello, V. Positano, J.H. Ardenkjaer‐Larsen, V. Lionetti, G.D. Aquaro, D. De Marchi, R.F. Schulte, F. Wiesinger, L. Landini, M. Lombardi, M.F. Santarelli Tags: Research Article Source Type: research

A vertical‐loop‐array transmit coil for two‐channel B1 shimming at 3T
ABSTRACT We propose a whole‐body transmit coil structure for two‐channel B1 shimming at 3T. The transmit coil consists of four identical vertical‐loop‐coils placed on a cylindrical former by equiangular basis. A vertical loop coil consists of an inner‐conductor plane and an outer‐conductor plane both of which constitute a vertical loop when the two planes are connected by tuning capacitors at both ends. To improve the B1 homogeneity of the transmit coil, we split the inner‐ and outer‐conductor planes into two rungs. We made the transmit coil with the length of 500 mm on a frame that had the inner and outer ...
Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering - April 24, 2013 Category: Radiology Authors: Lae Hoon Kang, Yong Moon Park, Dong Eun Kim, Soo Yeol Lee Tags: Research Article Source Type: research

An advanced, integrated large‐volume high‐pressure autoclave and 1h/13c double‐tuned resonator for chemistry and materials nuclear magnetic resonance spectroscopy and microscopy investigations
In this study, we present a setup for performing spectroscopic and imaging experiments on wood immersed in supercritical CO2 at up to 20 MPa for drying. A magnetic resonance‐compatible autoclave as well as a double‐tuned 1H/13C‐birdcage coil was designed and a setup for regulating pressure and storing gases was assembled. We were able to successfully perform measurements on the wood and water during the drying process and gaininsights into the displacement of water and its chemical reactions with the highly pressurized CO2. © 2013 Wiley Periodicals, Inc. Concepts Magn Reson Part B (Magn Reson Engineering) 43B: 49–...
Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering - April 24, 2013 Category: Radiology Authors: Volker C. Behr, Martin W. Schmid, Robert A. Franich, Roger Meder Tags: Research Article Source Type: research

Editorial Board
(Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering)
Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering - April 1, 2013 Category: Radiology Tags: Editorial Board Source Type: research

NMR Concepts
(Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering)
Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering - February 25, 2013 Category: Radiology Tags: NMR Concepts Source Type: research

Effects of different field strengths, gradient directions, and acquisitions on fractional anisotropy in diffusion tensor imaging: A tract‐based spatial statistics study
Abstract The effects of increasing acquisitions and gradient directions on fractional anisotropy (FA) at 1.5T versus 3T were investigated using an operator‐independent methodology (tract‐based spatial statistics) by minimizing technical differences in image acquisition between the two magnetic resonance imaging platforms and also FA values at roughly equivalent signal‐to‐noise ratio and data acquisition time were compared. Five healthy subjects underwent this experiment. Diffusion tensor imaging (DTI) was performed at 1.5T and 3T. Gradient schemes were 6, 30, and 96 directions. The numbers of acquisitions were 5, 1...
Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering - February 25, 2013 Category: Radiology Authors: Youngseob Seo Tags: Research Article Source Type: research

L‐band surface‐coil resonator with voltage‐control impedance‐matching for EPR tooth dosimetry
Abstract A surface‐coil resonator that is capable of voltage‐control for impedance‐matching is described in the context of its application in electron paramagnetic resonance (EPR)‐based tooth dosimetry. Varactor‐based coupling of an 1,150 MHz surface‐coil resonator was achieved to supply RF power. The developed resonator consists of a single‐turn loop, 9 mm in mean diameter; a capacitor made of a polytetrafluoroethylene (PTFE) substrate; a quarter‐wavelength parallel transmission line; a half‐wave line balun, and varactors. The surface coil and the PTFE substrate capacitor were connected to a quarter‐wa...
Source: Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering - February 25, 2013 Category: Radiology Authors: Tadatsugu Haga, Hiroshi Hirata, Piotr Lesniewski, Kevin M. Rychert, Benjamin B. Williams, ANN B. Flood, Harold M. Swartz Tags: Research Article Source Type: research