Cédric Blanchard,Alain Lalande,Tadeusz Sliwa et al.
Cédric Blanchard et al.
Object: Although, there is no global consensus on their measurement, magnetic resonance imaging (MRI) appears to be particularly attractive for the study of the sinuses of Valsalva (SV). The purpose of this study was to a...
Local SAR management by RF shimming: a simulation study with multiple human body models [0.03%]
基于RF场调制的局部SAR管理：多个人体模型上的模拟研究
Hanno Homann,Ingmar Graesslin,Holger Eggers et al.
Hanno Homann et al.
Object: Parallel transmission facilitates a relatively direct control of the RF transmit field. This is usually applied to improve the RF field homogeneity but might also allow a reduction of the specific absorption rate ...
In vivo MRS of locally advanced breast cancer: characteristics related to negative or positive choline detection and early monitoring of treatment response [0.03%]
局部晚期乳腺癌在体MRS检查：与胆碱检测呈阴性或阳性结果相关的特征及早期监测治疗反应
Tone F Bathen,Mariann G Heldahl,Beathe Sitter et al.
Tone F Bathen et al.
Object: To explore factors determining the detection of total choline (tCho) by in vivo MR spectroscopy (MRS) in locally advanced breast cancer and to evaluate the ability of in vivo tCho to predict treatment response aft...
Correction of susceptibility-induced GRE phase shift for accurate PRFS thermometry proximal to cryoablation iceball [0.03%]
邻近冷冻消融冰球区域的精确PRFS温度测量的相位校正方法研究
Antje Kickhefel,Clifford Weiss,Joerg Roland et al.
Antje Kickhefel et al.
Introduction: The susceptibility contrast between frozen and unfrozen tissue disturbs the local magnetic field in the proximity of the ice-ball during cryotherapy. This effect should be corrected for in real time to allow...
1H-MRS of hepatic fat using short TR at 3T: SNR optimization and fast T2 relaxometry [0.03%]
利用短TR的~(1)H-MRS检测肝脏脂肪：信噪比优化与快速T2弛豫度测定
Giulio Gambarota,Mark Tanner,Marinette van der Graaf et al.
Giulio Gambarota et al.
Object: To increase the signal-to-noise ratio (SNR) efficiency of hepatic fat signals in proton magnetic resonance spectroscopy (1H MRS) at 3 T, in order to improve the quantitation of hepatic fat and allow fast, single b...
A novel tool for estimation of magnetic resonance occupational exposure to spatially varying magnetic fields [0.03%]
一种估计职业暴露于空间变化磁场的磁共振的新工具
Valentina Hartwig,Nicola Vanello,Giulio Giovannetti et al.
Valentina Hartwig et al.
Object: Staff operating in the environment of magnetic resonance imaging (MRI) scanners are exposed daily to static magnetic fields (MFs). To protect workers several guidelines are present in literature reporting exposure...
Comparison of arterial transit times estimated using arterial spin labeling [0.03%]
基于动脉自旋标记的动脉传输时间比较研究
Yufen Chen,Danny J J Wang,John A Detre
Yufen Chen
Objective: To compare arterial transit time estimates from two efficient transit time mapping techniques using arterial spin labeling (ASL)-flow encoded arterial spin tagging (FEAST) and Look-Locker ASL (LL-ASL). The effe...
Comparative Study
Magma (New York, N.Y.). 2012 Apr;25(2):135-44. DOI:10.1007/s10334-011-0276-5 2012
Josiane Yankam Njiwa,Christof Baltes,Markus Rudin
Josiane Yankam Njiwa
Object: Two approaches of reconstructing undersampled partial k-space data, acquired with multiple coils are compared: homodyne detection combined with SENSE (HM_SENSE) and analytic image reconstruction combined with SENS...
Comparative Study
Magma (New York, N.Y.). 2011 Oct;24(5):305-13. DOI:10.1007/s10334-011-0274-7 2011
Stripline resonator and preamplifier for preclinical magnetic resonance imaging at 4.7 T [0.03%]
用于4.7T小动物磁共振成像的带状线谐振器与前置放大器
Ioannis Lavdas,Hugh C Seton,Charles R Harrington et al.
Ioannis Lavdas et al.
Object: To design and evaluate a fully shielded, λ/4 stripline resonator as a receive-only surface coil for preclinical MRI at 4.7 T. Materials and metho...
Highly accelerated PSF-mapping for EPI distortion correction with improved fidelity [0.03%]
一种改进准确性的EPI畸变校正的高加速PSF映射方法
Myung-Ho In,Oliver Speck
Myung-Ho In
Objective: This study presents an improved point-spread-function (PSF) mapping-based distortion correction method and accelerated PSF acquisition for distortion correction in EPI without loss of quality or reliability com...