Basic performance of a large area PET detector with a monolithic scintillator [0.03%]
一种大面积PET探测器的初步性能研究
Eiji Yoshida,Naoko Inadama,Hiroto Osada et al.
Eiji Yoshida et al.
Conventionally, block detectors, which consist of a two-dimensionally segmented scintillator array with inserted reflectors, are often used for PET. On the other hand, PET detectors with a monolithic block have been investigated because the...
Visual evaluation and usefulness of medical high-resolution liquid-crystal displays with use of independent sub-pixel driving technology [0.03%]
独立子像素驱动技术在医学高分辨率液晶显示器视觉评估及应用价值中的作用研究
Seigo Yamada,Yoshiharu Hirata,Rie Ishii et al.
Seigo Yamada et al.
Liquid-crystal displays (LCDs) used for medical imaging, such as luminance characteristics and panel surface processing, have been developed as a medium substituting for film. There are various models of and specifications for display, but ...
Effectiveness of temporal and dynamic subtraction images of the liver for detection of small HCC on abdominal CT images: comparison of 3D nonlinear image-warping and 3D global-matching techniques [0.03%]
三维非线性图像配准和全局匹配技术肝动态及时间减影在亚厘米肝癌检测效果上的比较研究
Eiichiro Okumura,Shigeru Sanada,Masayuki Suzuki et al.
Eiichiro Okumura et al.
Misregistration errors occur at the periphery of the hepatic region due to respiratory- and interval-related changes in hepatic shape. To reduce these misregistration errors, we developed a temporal and dynamic subtraction technique to enha...
Comparative Study
Radiological physics and technology. 2011 Jul;4(2):109-20. DOI:10.1007/s12194-010-0110-1 2011
Clinical usefulness of temporal subtraction method in screening digital chest radiography with a mobile computed radiography system [0.03%]
时间减影法在数字胸部X线群体筛查中的临床应用价值研究
Yasuo Sasaki,Katsumi Abe,Makiko Tabei et al.
Yasuo Sasaki et al.
The temporal subtraction image which is obtained by subtraction of a previous image from a current image of the same patient can enhance interval changes. In this study, we applied the temporal subtraction method for lung cancer screening a...
Time spatial labeling inversion pulse cerebral MR angiography without subtraction by use of dual inversion recovery background suppression [0.03%]
双反转恢复背景抑制法时间-空间翻转脉冲无减影脑MR血管造影
Yoshiyuki Ishimori,Masahiko Monma,Hiraku Kawamura et al.
Yoshiyuki Ishimori et al.
Time-spatial labeling inversion pulse (time-SLIP), which is a technique of nonenhanced magnetic resonance angiography (MRA) based on arterial spin labeling (ASL), is used in various situations. Although subtraction between the images obtain...
Sonographic assessment of hyoid bone movement during swallowing: a study of normal adults with advancing age [0.03%]
声像图评估吞咽过程中舌骨运动的变化：一项关于年龄增长的正常成人队列研究
Koichi Yabunaka,Hiromi Sanada,Shigeru Sanada et al.
Koichi Yabunaka et al.
Our aim in this study was to evaluate hyoid bone movement trajectories and the age-related changes during swallowing in healthy subjects by ultrasonography. Data were obtained from 30 healthy volunteers (15 men, 15 women) in three age group...
Automated segmentation method of white matter and gray matter regions with multiple sclerosis lesions in MR images [0.03%]
含多发性硬化病灶的磁共振图像中白质和灰质区域自动分割方法
Taiki Magome,Hidetaka Arimura,Shingo Kakeda et al.
Taiki Magome et al.
Our purpose in this study was to develop an automated method for segmentation of white matter (WM) and gray matter (GM) regions with multiple sclerosis (MS) lesions in magnetic resonance (MR) images. The brain parenchymal (BP) region was de...
Development of identification of the central sulcus in brain magnetic resonance imaging [0.03%]
基于脑磁共振图像的中央沟识别方法研究
Norio Hayashi,Keita Sakuta,Kaori Minehiro et al.
Norio Hayashi et al.
Magnetic resonance imaging (MRI) is useful in the quantitative evaluation of brain atrophy, because the superior contrast resolution facilitates separation of the gray and white matter. Quantitative assessment of brain atrophy has mainly be...
Optimizing scan timing of hepatic arterial phase by physiologic pharmacokinetic analysis in bolus-tracking technique by multi-detector row computed tomography [0.03%]
基于生理药代动力学分析优化多层螺旋CT团注追踪法肝动脉期扫描时机
Isao Yamaguchi,Eiji Kidoya,Masayuki Suzuki et al.
Isao Yamaguchi et al.
Our aim in this study was to determine an optimal delay time of hepatic arterial phase (HAP) imaging of hypervascular hepatocellular carcinomas (HCCs) in dynamic contrast-enhanced MDCT (DCE-CT) by use of the bolus-tracking method. The time-...
Countermeasures against physical motion in schoolchildren requiring no sedation during rest and stress myocardial perfusion imaging with technetium-99m-tetrofosmin [0.03%]
无镇静状态下在校学生休息和应激心肌灌注显像时采取对抗体位移动措施的研究（ 99m Tc-Tetrofosmin）
Hajime Monzen,Yuko Ban,Makoto Hirata et al.
Hajime Monzen et al.
For children, cardiac nuclear medicine imaging has not been widely used because of problems of physical motion, even in schoolchildren who require no sedation. In this study, rest-stress myocardial perfusion imaging (MPI) with technetium-99...