A new reference point for patient dose estimation in neurovascular interventional radiology [0.03%]
神经血管介入放射学患者剂量估算的新参考点
Kohei Kawasaki,Masaharu Imazeki,Ryota Hasegawa et al.
Kohei Kawasaki et al.
In interventional radiology, dose estimation using the interventional reference point (IRP) is a practical method for obtaining the real-time skin dose of a patient. However, the IRP is defined in terms of adult cardiovascular radiology and...
Experimental and simulation studies on the behavior of signal harmonics in magnetic particle imaging [0.03%]
磁粒成像中信号谐波行为的实验与仿真研究
Kenya Murase,Takashi Konishi,Yuki Takeuchi et al.
Kenya Murase et al.
Our purpose in this study was to investigate the behavior of signal harmonics in magnetic particle imaging (MPI) by experimental and simulation studies. In the experimental studies, we made an apparatus for MPI in which both a drive magneti...
Reproducibility of scan prescription in follow-up brain MRI: manual versus automatic determination [0.03%]
随访脑MRI检查中手动和自动扫描方案的可重复性研究
Shinya Kojima,Masami Hirata,Hiroyuki Shinohara et al.
Shinya Kojima et al.
In follow-up brain magnetic resonance imaging (MRI), precise reproducibility of the scan prescription is important so that over- or underestimating changes in volumes of clinical interest is prevented. (The scan prescription is defined as t...
Comparative Study
Radiological physics and technology. 2013 Jul;6(2):375-84. DOI:10.1007/s12194-013-0211-8 2013
Investigation of image lag and modulation transfer function in fluoroscopy images obtained with a dynamic flat-panel detector [0.03%]
动态平板探测器获得的透视图像中的影像拖尾及调制传递函数研究
Hiroki Kawashima,Rie Tanaka,Katsuhiro Ichikawa et al.
Hiroki Kawashima et al.
Digital imaging with a dynamic flat-panel detector (FPD) is commonly used in clinical practice. However, several factors reduce the accuracy of target tracking in fluoroscopic imaging, including image lag and blurring. There have been sever...
Technical approach to individualized respiratory-gated carbon-ion therapy for mobile organs [0.03%]
个体化呼吸门控碳离子治疗移动器官的技术方法学研究
Mutsumi Tashiro,Takayoshi Ishii,Jun-ichi Koya et al.
Mutsumi Tashiro et al.
We propose a strategy of individualized image acquisitions and treatment planning for respiratory-gated carbon-ion therapy. We implemented it in clinical treatments for diseases of mobile organs such as lung cancers at the Gunma University ...
Effects of diffusional kurtosis imaging parameters on diffusion quantification [0.03%]
扩散张量成像参数对扩散定量的影响研究
Issei Fukunaga,Masaaki Hori,Yoshitaka Masutani et al.
Issei Fukunaga et al.
Diffusional kurtosis imaging (DKI) is a new technique based on non-Gaussian water diffusion analysis. However, the original DKI protocol (six b values and 30 motion-probing gradient (MPG) directions) requires more than 10 min of scanning ti...
Dose verification of volumetric modulated arc therapy (VMAT) by use of in-treatment linac parameters [0.03%]
利用治疗直线加速器参数验证体积调强弧形治疗(VMAT)的剂量
Akihiro Haga,Akira Sakumi,Yukari Okano et al.
Akihiro Haga et al.
Linac parameters such as the multi-leaf collimator (MLC) position and jaw position, cumulative monitor units (MUs), and the corresponding gantry angle were recorded during the clinical delivery of volumetric modulated arc therapy for prosta...
Vessel-selective, non-contrast enhanced, time-resolved MR angiography with vessel-selective arterial spin labeling technique (CINEMA-SELECT) in intracranial arteries [0.03%]
选择性血管、非对比剂增强、基于时间的磁共振血管造影（使用血管选择性动脉自旋标记技术[CINEMA-SELECT]）在颅内动脉中的应用
Masanobu Nakamura,Masami Yoneyama,Takashi Tabuchi et al.
Masanobu Nakamura et al.
We demonstrate the feasibility of the vessel-selective, non-contrast, time-resolved magnetic resonance angiography (MRA) technique, "contrast inherent inflow enhanced multi-phase angiography combining vessel-selective arterial spin labeling...
Optimum CT reconstruction parameters for vascular and hepatocellular carcinoma models in a liver phantom with multi-level dynamic computed tomography with 64 detector rows: a basic study [0.03%]
一种含有多级动态CT的64排探测器肝脏体模中血管及肝细胞癌模型的最佳CT图像重建参数：基础研究
Kazuhiro Murotani,Nobuyuki Kawai,Morio Sato et al.
Kazuhiro Murotani et al.
We quantified to clarify the optimum factors for CT image reconstruction of an enhanced hepatocellular carcinoma (HCC) model in a liver phantom obtained by multi-level dynamic computed tomography (M-LDCT) with 64 detector rows. After M-LDCT...
Current status and future prospects of multi-dimensional image-guided particle therapy [0.03%]
多维度图像引导粒子治疗的现状及未来展望
Shinichiro Mori,Silvan Zenklusen,Antje-Christin Knopf
Shinichiro Mori
In this review article we emphasize the importance of "imaging" and "image guidance" in advanced particle therapy from a clinical point of view. Although the image-guided radiotherapy (IGRT) technology used for photon and particle therapy i...