Volume 37, Issue 2

Magnetic resonance imaging of short relaxation time spin systems has been a widely discussed topic with serious clinical applications and led to the emergence of fast imaging ultra-short echo-time sequences. Nevertheless, these sequences suffer from image blurring, due to the related sampling point spread function and are highly prone to imaging artefacts arising from, e.g., chemical shifts or mag...

短弛豫时间自旋系统的磁共振成像一直是一个广泛讨论的话题，具有重要的临床应用，并导致了快速成像超短回波时间序列的出现。然而，由于相关的采样点扩散函数，这些序列存在图像模糊，并且极易受到来自化学位移或磁场不均匀性等引起的成像伪影的影响。

Multi-source interior computed tomography (CT) has a great potential to provide ultra-fast and organ-oriented imaging at low radiation dose. However, X-ray cross scattering from multiple simultaneously activated X-ray imaging chains compromises imaging quality. Previously, we published two hardware-based scatter correction methods for multi-source interior CT. Here, we propose a software-based sca...

多源内部计算机断层扫描（CT）具有在低辐射剂量下提供超快速和器官导向成像的巨大潜力。然而，来自多个同时激活的X射线成像链的X射线交叉散射会损害成像质量。此前，我们发表了两种基于硬件的多源内部CT散射校正方法。在此，我们提出一种基于软件的散射校正方法。

Characterization of the noise distribution in magnetic resonance images has multiple applications, including quality assurance and protocol optimization. Noise characterization is particularly important in the presence of parallel imaging acceleration with multi-coil acquisitions, where the noise distribution can contain severe spatial heterogeneities. If the parallel imaging reconstruction is a l...

磁共振图像中噪声分布的表征具有多种应用，包括质量保证和协议优化。在多线圈采集的并行成像加速情况下，噪声表征尤为重要，因为噪声分布可能包含严重的空间异质性。如果并行成像重建是线性...

Penalized least-squares iterative image reconstruction algorithms used for spatial resolution-limited imaging, such as functional magnetic resonance imaging (fMRI), commonly use a quadratic roughness penalty to regularize the reconstructed images. When used for complex-valued images, the conventional roughness penalty regularizes the real and imaginary parts equally. However, these imaging methods...

用于空间分辨率受限成像（如功能性磁共振成像（fMRI））的惩罚最小二乘迭代图像重建算法，通常使用二次粗糙度惩罚来正则化重建图像。当用于复值图像时，传统的粗糙度惩罚同等地正则化实部和虚部。然而，这些成像方法...

Sensitivity to phase deviations in MRI forms the basis of a variety of techniques, including magnetic susceptibility weighted imaging and chemical shift imaging. Current phase processing techniques fall into two families: those which process the complex image data with magnitude and phase coupled, and phase unwrapping-based techniques that first linearize the phase topology across the image. Howev...

对MRI中相位偏差的敏感性构成了多种技术的基础，包括磁敏感加权成像和化学位移成像。当前的相位处理技术分为两类：一类是处理复数图像数据，幅度和相位耦合；另一类是基于相位解缠的技术，首先线性化整个图像的相位拓扑。然而...

Describes the above-named upcoming conference event. May include topics to be covered or calls for papers.

描述上述即将举行的会议活动。可能包括涵盖的主题或论文征集。

Describes the above-named upcoming conference event. May include topics to be covered or calls for papers.

描述上述即将举行的会议活动。可能包括涵盖的主题或征稿通知。

Provides instructions and guidelines to prospective authors who wish to submit manuscripts.

为希望投稿的作者提供说明和指南。

Provides a listing of current staff, committee members and society officers.

提供当前工作人员、委员会成员及学会官员名单。

Presents the table of contents for this issue of this publication.

介绍了本期出版物的目录。