Letter to the editor concerning Tsuchiya K et al. "Dosimetric comparison between intensity-modulated radiotherapy and standard wedged tangential technique for whole-breast radiotherapy in Asian women with relatively small breast volumes" [0.03%]
有关Tsuchiya K等."强度调控放射治疗与标准楔形挡块切线野技术在亚洲相对小体积乳腺全乳放疗中剂量学对比”的信件
Maria Grazia Ruo Redda,Silvia Maria Anglesio,Simona Allis et al.
Maria Grazia Ruo Redda et al.
Hiroyuki Date,Kosuke Wakui,Kohei Sasaki et al.
Hiroyuki Date et al.
Local energy transfer from electrons generated in biotissues that are exposed to ionizing radiation is fundamental to cell damage. Our aim in this investigation was to quantify the probability of cell mortality associated with the damage by...
Adapting non-local means of de-noising in intraoperative magnetic resonance imaging for brain tumor surgery [0.03%]
用于脑肿瘤手术术中磁共振图像去噪的非局部均值算法改进方法研究
Takashi Mizukuchi,Masazumi Fujii,Yuichiro Hayashi et al.
Takashi Mizukuchi et al.
In image-guided brain tumor surgery, intraoperative magnetic resonance imaging (iMRI) is a powerful tool for updating navigational information after brain shift, controlling the resection of brain tumors, and evaluating intraoperative compl...
Influence of difference in cross-sectional dose profile in a CTDI phantom on X-ray CT dose estimation: a Monte Carlo study [0.03%]
CTDI体模中剂量剖面差异对X射线CT剂量估计影响的蒙特卡罗研究
Tomonobu Haba,Shuji Koyama,Yoshihiro Ida
Tomonobu Haba
The longitudinal dose profile in a computed tomography dose index (CTDI) phantom had been studied by many researchers. The cross-sectional dose profile in the CTDI phantom, however, has not been studied. It is also important to understand t...
Evaluation of the effect of geometry for measuring section thickness in tomosynthesis [0.03%]
层析合成中测量截面厚度的几何影响评估
Ryohei Fukui,Rie Ishii,Junichi Kishimoto et al.
Ryohei Fukui et al.
Our aim in this study was to evaluate the effect of geometry for measuring section thickness in tomosynthesis by using a metal bead device (bead method). Tomosynthesis images were obtained from two types of tomosynthesis equipment, Safire17...
Patient investigation of average glandular dose and incident air kerma for digital mammography [0.03%]
数字化乳腺摄影的平均腺体剂量和瞬时空气照射量的深入研究
Ai Kawaguchi,Yuta Matsunaga,Tomoko Otsuka et al.
Ai Kawaguchi et al.
Our aim in this study was to investigate the incident air kerma (IAK) and average glandular dose (AGD) for polymethylmethacrylate (PMMA) phantoms and patient breasts for each thickness by use of digital mammography units, and to determine t...
Heating and safety of a new MR-compatible guidewire prototype versus a standard nitinol guidewire [0.03%]
一种新型磁共振兼容导引线原型的加热和安全性与标准镍钛合金导引线的对比研究
Malgorzata Wolska-Krawczyk,Martin A Rube,Erwin Immel et al.
Malgorzata Wolska-Krawczyk et al.
Our purpose in this study was to examine heating of nitinol and polyetheretherketone (PEEK) guidewires during near-real-time MR imaging in an artificial vascular model an "aorta phantom". The first 100 cm of the nitinol- and PEEK-based guid...
Quality of images acquired with and without grid in digital mammography [0.03%]
带有和不带栅格的数字乳腺摄影图像质量研究
Khaled H Al Khalifah,Ajit Brindhaban,Raed A Saeed
Khaled H Al Khalifah
In this study, we assessed the quality of digital mammography images acquired with a grid and without a grid for different kVp values. A digital mammography system was used for acquisition of images of the CIRS Model 015 Mammography Accredi...
Tatsuya Hayashi,Tosiaki Miyati,Junji Takahashi et al.
Tatsuya Hayashi et al.
Our purpose was to assess the influence of liver steatosis on diffusion by triexponential analysis. Thirty-three patients underwent diffusion-weighted magnetic resonance imaging with multiple b values for perfusion-related diffusion, fast f...
A preliminary study for exploring the luminance ratio of liquid-crystal displays required for display of radiographs [0.03%]
液晶显示器显示数字放射影像所需亮度比率的初步研究
Shinya Takarabe,Junji Morishita,Hidetake Yabuuchi et al.
Shinya Takarabe et al.
Medical-grade liquid-crystal displays (LCDs) with high contrast ratio (CR) values have recently been developed and become available for soft-copy reading. When the LCD is used under ambient light conditions, the luminance ratio (LR) is a mo...