Odd-Leg Birdcages for Geometric Decoupling in Multinuclear Imaging and Spectroscopy [0.03%]
用于多核成像和光谱的奇数支脚鸟笼线圈几何解耦
Joseph Busher,Edith Touchet-Valle,Chenhao Sun et al.
Joseph Busher et al.
The utility of interleaved odd-number leg birdcage coils is demonstrated for decoupling in double- and triple-tuned multinuclear applications. The birdcage was designed to geometrically decouple from a planar double-tuned (1H-23Na) array an...
Quasistatic Solutions versus Full-Wave Solutions of Single-Channel Circular RF Receive Coils on Phantoms of Varying Conductivities at 3 Tesla [0.03%]
不同电导率下3T单通道圆形接收线圈在体模中准静态解与全波解的比较研究
Michael J Beck,Dennis L Parker,J Rock Hadley
Michael J Beck
Purpose: Although full-wave simulations could be used to aid in RF coil design, the algorithms may be too slow for an iterative optimization algorithm. If quasistatic simulations are accurate within the design tolerance, ...
Capacitive versus Overlap Decoupling of Adjacent Radio Frequency Phased Array Coil Elements: An Imaging Robustness Comparison When Sample Load Varies for 3 Tesla MRI [0.03%]
相邻射频相控阵线圈元件的电容式与重叠去耦：当样本负载变化时，3特斯拉磁共振成像的成像鲁棒性对比
Michael J Beck,Dennis L Parker,J Rock Hadley
Michael J Beck
Phased array (PA) receive coils are built such that coil elements approximate independent antenna behavior. One method of achieving this goal is to use an available decoupling method to decouple adjacent coil elements. The purpose of this w...
The "Loopole" Antenna: A Hybrid Coil Combining Loop and Electric Dipole Properties for Ultra-High-Field MRI [0.03%]
“_LOOPOLE_”线圈：一种兼具超导回路和电偶极子性质的超高场磁共振成像用新型混合线圈
Karthik Lakshmanan,Martijn Cloos,Ryan Brown et al.
Karthik Lakshmanan et al.
Purpose: To revisit the "loopole," an unusual coil topology whose unbalanced current distribution captures both loop and electric dipole properties, which can be advantageous in ultra-high-field MRI. ...
Single-point Dixon water-fat imaging using 64-channel single-echo acquisition MRI [0.03%]
单通道单一回波采集MRI的单点Dixon水脂同像法研究(64通道)
Jong Bum Son,Steven M Wright,Jim X Ji
Jong Bum Son
This paper presents a method for high-speed water-fat imaging using Single-Echo Acquisition (SEA) with an array of 64 localized coil elements and single-point Dixon sequence. The method forms two-dimensional separate water and fat images fr...
Traveling-wave meets standing-wave: A simulation study using pair-of-transverse-dipole-ring (PTDR) coils for adjustable longitudinal coverage in ultra-high field MRI [0.03%]
行波与驻波相遇：使用一对横向偶极环线圈（PTDR）在超高场磁共振成像中实现可调纵向覆盖的仿真研究
Xinqiang Yan,John C Gore,William A Grissom
Xinqiang Yan
1.At ultrahigh fields (B 0 ≥7T), it is challenging to cover a large field of view using single-row conventional RF coils (standing wave resonators) due to the limited physical dimensions. In contrast, traveling wave approaches can excite l...
Synchronous Radial 1H and 23Na Dual-Nuclear MRI on a Clinical MRI System, Equipped With a Broadband Transmit Channel [0.03%]
具备宽带发射通道的临床MRI系统上的同步径向1H和23Na双核磁共振成像
Joshua D Kaggie,Nabraj Sapkota,Bijaya Thapa et al.
Joshua D Kaggie et al.
The purpose of this work was to synchronously acquire proton (1H) and sodium (23Na) image data on a 3T clinical MRI system within the same sequence, without internal modification of the clinical hardware, and to demonstrate synchronous acqu...
An RF-gated wireless power transfer system for wireless MRI receive arrays [0.03%]
一种用于无线MRI接收线圈的射频门控无线供能系统
Kelly Byron,Fraser Robb,Pascal Stang et al.
Kelly Byron et al.
In MRI systems, cable-free receive arrays would simplify setup while reducing the bulk and weight of coil arrays and improve patient comfort and throughput. Since battery power would limit scan time, wireless power transfer (WPT) is a viabl...
Laura A Buchanan,George A Rinard,Richard W Quine et al.
Laura A Buchanan et al.
Low frequency electron paramagnetic resonance imaging is a powerful tool to non-invasively measure the physiological status of tumors. Here, we report on the design and functionality of a rapid scan and pulse table-top imaging spectrometer ...
Comparision of new element designs for combined RF-Shim arrays at 7 T [0.03%]
7T下新型RF- shim组合线圈单元对比研究
Simone A Winkler,Paul A Warr,Jason P Stockmann et al.
Simone A Winkler et al.
Purpose: To identify novel concepts for RF-shim loop architectures suitable for 7T made of two concentric conducting loops fulfilling RF and DC functions, respectively, and to determine their relative SNR performance. The...