Volume 34, Issue 2

4-D time-resolved velocity-encoded phase-contrast MRI (4-D PCI) is a fully non-invasive technique to assess hemodynamics in vivo with a broad range of potential applications in multiple cardiovascular diseases. It is capable of providing quantitative flow values and anatomical information simultaneously. The long acquisition time, however, still inhibits its wider clinical use. Acceleration is ach...

4维时间分辨速度编码相位对比MRI（4-D PCI）是一种完全无创的技术，用于评估体内血流动力学，在多种心血管疾病中具有广泛的应用潜力。它能够同时提供定量血流值和解剖信息。然而，较长的采集时间仍阻碍其在临床上的广泛使用。加速方法是实现...

Tubular shaped networks appear not only in medical images like X-ray-, time-of-flight MRI- or CT-angiograms but also in microscopic images of neuronal networks. We present EMILOVE (Efficient Monte-carlo Image-analysis for the Location Of Vascular Entity), a novel modeling algorithm for tubular networks in biomedical images. The model is constructed using tablet shaped particles and edges connectin...

管状网络不仅出现在医学图像如X射线、飞行时间MRI或CT血管造影中，也出现在神经元网络的显微图像中。我们提出了EMILOVE（用于血管实体定位的高效蒙特卡洛图像分析），一种针对生物医学图像中管状网络的新型建模算法。该模型使用片状颗粒和边缘构建...

The magnetic particle imaging (MPI) technology is a new imaging technique featuring an excellent possibility to detect iron oxide based nanoparticle accumulations in vivo. The excitation of the particles and in turn the signal generation in MPI are achieved by using oscillating magnetic fields. In order to realize a spatial encoding, a field-free point (FFP) is steered through the field of view (F...

磁粒子成像（MPI）技术是一种新型成像技术，具有极好的检测体内基于氧化铁纳米颗粒积聚的可能性。在MPI中，粒子的激发以及随之而来的信号生成是通过使用振荡磁场实现的。为了实现空间编码，无场点（FFP）被引导穿过视场（F...

Many applications in MRI such as accelerated receive and transmit sequences require the synthesis of nonuniform 3-D gradient trajectories. Several methods have been proposed to design these gradient trajectories in a time-optimal manner, subject to hardware specific gradient magnitude and slew rate constraints. In this work a novel method is derived that designs time-optimal trajectories, solely b...

MRI中的许多应用，如加速接收和发射序列，需要合成非均匀三维梯度轨迹。已经提出了几种方法，在硬件特定的梯度幅度和压摆率约束下，以时间最优的方式设计这些梯度轨迹。在这项工作中，推导了一种新颖的方法，可以设计时间最优轨迹，仅通过...

3D functional nuclear imaging modalities like SPECT or PET provide valuable information, as small structures can be marked with radioactive tracers to be localized before surgery. This positional information is valuable during surgery as well, for example when locating potentially cancerous lymph nodes in the case of breast cancer. However, the volumetric information provided by pre-operative SPEC...

3D功能核素成像模态（如SPECT或PET）提供了宝贵的信息，因为小型结构可以用放射性示踪剂标记，以便在手术前进行定位。这种位置信息在手术中也很有价值，例如在乳腺癌病例中定位可能癌变的淋巴结。然而，术前SPECT提供的体积信息……

In the above-named document [ibid, vol. 33, no. 6, pp. 1275–1289, Jun. 2014], the funding information should have appeared as follows: "This work was supported in part by the National Institutes of Health (The National Heart, Lung, and Blood Institute) through these awards: R01HL082640, 5T32HL098069, and R01HL121226. The work of B. A. Lin was supported by an ASE Foundation Career Development Award...

在上述文件[同上，第33卷，第6期，第1275-1289页，2014年6月]中，资助信息应如下所示：“这项工作部分由美国国立卫生研究院（国家心肺血液研究所）通过以下奖项支持：R01HL082640，5T32HL098069和R01HL121226。B. A. Lin的工作得到了ASE基金会职业发展奖的支持...”

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呈现本期刊的封面/目录。