Optimization of imaging conditions for infant hip imaging using flat panel detectors [0.03%]
应用平板探测器优化婴儿髋关节影像检查条件的研究
Akira Suzuki,Yoshiaki Hirofuji,Noriaki Miyaji et al.
Akira Suzuki et al.
To investigate the optimal low-dose imaging conditions for infant hip radiography, using a commercially available infant phantom, and to identify conditions that are satisfactory to orthopedic surgeons, using a combination of low tube volta...
Scatter and beam hardening effect corrections in pelvic region cone beam CT images using a convolutional neural network [0.03%]
基于卷积神经网络的盆腔区域CBCT图像散射和硬化效应校正方法研究
Soya Yagi,Keisuke Usui,Koichi Ogawa
Soya Yagi
The aim of this study is to remove scattered photons and beam hardening effect in cone beam CT (CBCT) images and make an image available for treatment planning. To remove scattered photons and beam hardening effect, a convolutional neural n...
Impact of iso-dose levels on pre-treatment quality assurance in volumetric modulated arc therapy [0.03%]
等剂量线水平对体积调强弧形治疗预照射质量保证的影响研究
Sumanta Manna,Sanjib Gayen,Sonal Varshney
Sumanta Manna
The current standard of modern radiotherapy pre-treatment evaluation of dose distributions measured using gamma pass percentage is the predominant metric for Patient-Specific Quality Assurance (PSQA). The aim of the study was to analyze the...
Enhanced urethral identification for radiotherapy planning using fat-suppressed 3D T2-weighted magnetic resonance imaging [0.03%]
使用脂肪抑制的3D T2加权磁共振成像改进放疗计划中的尿道识别
Yutaka Kato,Takayoshi Nakaya,Kuniyasu Okudaira et al.
Yutaka Kato et al.
This study proposes a fat-suppressed three-dimensional T2-weighted (3D-T2W) sequence on magnetic resonance imaging to enhance prostatic urethral identification in radiotherapy planning. Conventional 3D-T2W and the proposed sequence were obt...
Development of estimation method for T1 and T2 values using the relaxivity of contrast agent and coagulant for a magnetic resonance imaging phantom [0.03%]
利用对比剂和凝血剂的弛豫率估算磁共振成像体模中T1和T2值的方法开发
Hiroki Okada,Norikazu Koori,Hatsune Shimizu et al.
Hiroki Okada et al.
The T1 and T2 values of magnetic resonance imaging phantoms used by researchers should be equivalent to those of the target tissue. However, this is difficult to achieve because of variations in the phantoms depending on the type and concen...
Risk factors for motion artifacts in fast spin-echo T2-weighted imaging of the prostate magnetic resonance imaging: a retrospective study [0.03%]
前列腺磁共振成像中快速自旋回波T2加权成像运动伪影的风险因素：一项回顾性研究
Takuya Kobata,Tatsuya Yamasaki,Hiroki Katayama et al.
Takuya Kobata et al.
Prostate cancer diagnosis using fast spin-echo (FSE) T2-weight imaging (T2WI) suffers from motion artifacts (T2-MA). We aimed to investigate the risk factors associated with T2-MA. We retrospectively analyzed the basic patient information a...
A study of differences in absorbed dose estimates by images used in dosimetry of Lu-177-DOTATATE therapy [0.03%]
通过Lu-177-DOTATATE治疗剂量学中所用图像的不同来研究吸收剂量估计值的差异性研究
Yui Masaki,Yasuo Yamashita,Takuro Isoda et al.
Yui Masaki et al.
In Lu-177-labeled peptide receptor radionuclide therapy, dosimetry has recently gained importance for assessing side effects and treatment responses. However, no standard method has been established yet. In this retrospective study, we comp...
Effectiveness of radiation protection educational material during angiography using visualization of scattered radiation by augmented reality technique [0.03%]
使用增强现实技术可视化散射辐射进行血管造影期间辐射防护教育材料的有效性
Koki Noguchi,Toshioh Fujibuchi,Donghee Han
Koki Noguchi
In medical settings, radiation exposure among radiation workers is a significant concern, and understanding radiation protection is crucial. We developed and evaluated radiation protection educational materials using an augmented reality ap...
Semantic segmentation for individual thigh skeletal muscles of athletes on magnetic resonance images [0.03%]
运动员磁共振图像中单个大腿骨骼肌的语义分割
Jun Kasahara,Hiroki Ozaki,Takeo Matsubayashi et al.
Jun Kasahara et al.
The skeletal muscles that athletes should train vary depending on their discipline and position. Therefore, individual skeletal muscle cross-sectional area assessment is important in the development of training strategies. To measure the cr...
A multiple regression model for peak skin dose using principal component analysis in interventional radiology [0.03%]
介入放射学中利用主成分分析建立峰值皮肤剂量的多元回归模型
Noriyuki Kuga,Katsutoshi Shirieda,Yumi Hirabara et al.
Noriyuki Kuga et al.
This study addresses the growing concerns of increased radiation doses to patients resulting from the increased complexity of interventional radiology procedures. Despite the importance of dose management, few facilities use dosimetry syste...