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结合全变分最小化和稀疏字典学习后处理的低剂量CT重建 Article
Yong DING, Tuo HU
《信息与电子工程前沿(英文)》 2017年 第18卷 第12期 页码 2001-2008 doi: 10.1631/FITEE.1700287
Weiwei CHEN, Jianpin QI, Wenzhen ZHU, Wenhua HUANG, Jinmei SONG
《医学前沿(英文)》 2009年 第3卷 第2期 页码 230-235 doi: 10.1007/s11684-009-0023-8
关键词: computed tomography angiography computed tomography perfusion
Low-dose CT for lung cancer screening: opportunities and challenges
null
《医学前沿(英文)》 2018年 第12卷 第1期 页码 116-121 doi: 10.1007/s11684-017-0600-1
Lung cancer is among the most frequently diagnosed cancers worldwide and the leading cause of cancer death in both males and females. Screening for lung cancer coupled with earlier intervention has long been studied as an approach to mortality reduction. However, minimal progress was achieved until recently, when low-dose spiral computed tomography (LDCT) screening demonstrated a 20% reduction in mortality from lung cancer in a randomized controlled trial (RCT), the National Lung Screening Trial, from the United States. On the basis of this finding, LDCT has been recommended for lung cancer screening in high-risk populations by several clinical guidelines. However, results from the following independent RCTs in Europe failed to show consistent conclusions. In addition, intractable problems gradually emerged with the progress of LDCT screening. This paper summarizes and discusses the main observations and challenges of LDCT screening for lung cancer. Before spreading implementation of LDCT screening, challenges, including high false-positive rates, overdiagnosis, enormous costs, and radiation risk, must be addressed. Complementary biomarkers and technical improvement are expected in the field of lung cancer screening in the near future.
关键词: lung cancer low-dose computerized tomography early detection opportunities challenges
The dynamic correction of collimation errors of CT slicing pictures
LIU Ya-xiong, Sekou Sing-are, LI Di-chen, LU Bing-heng
《机械工程前沿(英文)》 2006年 第1卷 第2期 页码 168-172 doi: 10.1007/s11465-006-0016-0
余宏亮,常明秀,曹恒海,薄立伟,杨永俊,李聪敏,李铭
《中国工程科学》 2015年 第17卷 第6期 页码 86-88
目的:项目拟通过观察在培养液中加入较高剂量的人参皂苷CK(Ginsenoside,G组)、淫羊藿苷(Icraiin,I组)两种药物前﹑后精子死亡率数据,评估两种药物单体在较大剂量时对体外精子的死亡率的影响方法:新鲜液化的精液(semen)标本40份,F-10培养液调整浓度为1.0×107/mL,分别添加不同剂量的人参皂苷CK(Ginsenoside,Gin CK)﹑淫羊藿苷(Icraiin,结论:较大剂量的Gin CK、Icr,均可引起体外培养的精子死亡率增高;在0.1 mg/mL的浓度下的Gin CK对精子的致死作用已经比较明显,而0.5 mg/mL对体外培养精子来说是致死剂量(98.84%),在0.1 mg/mL的剂量下的淫羊藿苷对精子的致死作用并不明显,在0.5 mg/mL剂量下Icr对精子致死作用有所提高,但远未达到Gin CK 98.4%的致死率。
《结构与土木工程前沿(英文)》 页码 1264-1280 doi: 10.1007/s11709-023-0921-x
关键词: MIP XRμCT aging diesel content pore structure permeability characteristics
Creep-fatigue crack growth behavior in GH4169 superalloy
Dianyin HU, Xiyuan WANG, Jianxing MAO, Rongqiao WANG
《机械工程前沿(英文)》 2019年 第14卷 第3期 页码 369-376 doi: 10.1007/s11465-018-0489-7
关键词: crack growth rate creep-fatigue GH4169 superalloy CT specimen dwell time
《医学前沿(英文)》 doi: 10.1007/s11684-023-1011-0
关键词: Paxlovid hemodialysis SARS-CoV-2 viral load chest CT scan
ZHAO Jizong, WANG Dejiang, WANG Shuo, YUAN Ge, KANG Shuai, JI Nan, ZHAO Yuanli, YE Xun, ZHOU Liangfu, ZHOU Dingbiao, WANG Renzhi, WANG Mei
《医学前沿(英文)》 2007年 第1卷 第2期 页码 142-146 doi: 10.1007/s11684-007-0027-1
关键词: tomographic-guided aspiration single-blinded manner favorable outcome operation Glasgow
Trauma-induced “Macklin effect” with pneumothorax and large pneumomediastinum, disguised by allergy
null
《医学前沿(英文)》 2013年 第7卷 第3期 页码 386-388 doi: 10.1007/s11684-013-0278-y
A 56-year-old man presented spontaneously to the Emergency Department complaining of facial and neck oedema after assumption of nonsteroidal anti-inflammatory drugs (NSAIDS). The triage nurse assigned the patient to Accident & Emergency (A&E) doctor as probable allergic reaction to NSAIDS. Chest X-ray (CXR), ordered after 24 hours, revealed a huge subcutaneous chest and neck emphysema without clearly visible pneumothorax. Subsequent chest CT scan showed a small left pneumothorax and a large amount of air in the mediastinum. The patient was conservatively treated since he was eupnoeic and hemodynamically stable. The pathophysiology of pneumomediastinum was first described by Macklin in 1939. The Macklin effect involves alveolar ruptures with air dissection along bronchovascular sheaths to the mediastinum. In this case the patient did not report in his history a recent blunt thoracic trauma and the initial suspicion of an allergic reaction has prevented physicians to immediately achieve the correct diagnosis.
关键词: thoracic trauma differential diagnosis critical care pneumothorax pneumomediastinum CT scan pitfalls lung and airways physiology
A study on quality evaluation for bituminous mixture using X-ray CT
Satoshi TANIGUCHI, Keiichiro OGAWA, Jun OTANI, Itaru NISHIZAKI
《结构与土木工程前沿(英文)》 2013年 第7卷 第2期 页码 89-101 doi: 10.1007/s11709-013-0197-7
关键词: asphalt concrete mixture aggregate bitumen bitumen content quality evaluation X-ray CT
A miniature triaxial apparatus for investigating the micromechanics of granular soils with
Zhuang CHENG, Jianfeng WANG, Matthew Richard COOP, Guanlin YE
《结构与土木工程前沿(英文)》 2020年 第14卷 第2期 页码 357-373 doi: 10.1007/s11709-019-0599-2
关键词: triaxial apparatus X-ray μCT in situ test micro-scale mechanical behavior granular soils
邓力,李刚,陈朝斌,叶涛
《中国工程科学》 2012年 第14卷 第8期 页码 72-77
硼中子俘获治疗(BNCT)蒙特卡罗剂量计算软件系统MCDB (Monte Carlo dosimetry code for brain)已经开发成功它包括医学前处理、剂量计算和后处理。前处理把CT、MRI图像数据自动转化为剂量计算的输入文件,剂量计算基于蒙特卡罗(MC)方法,后处理是确定照射方向和照射时间。为了提高剂量计算的精度和缩短计算时间,MCDB发展了针对体素模型的快速粒子径迹算法,构造材料矩阵和计数矩阵,程序实现了MPI并行化。通过一个病例,MCDB完成了从CT、MRI提取数据、剂量计算和后处理的全过程。
Toshifumi MUKUNOKI, Naoko KUMANO, Jun OTANI
《结构与土木工程前沿(英文)》 2012年 第6卷 第2期 页码 85-100 doi: 10.1007/s11709-012-0159-5
关键词: relative density grain property model test road subsidence underground pipe image processing X-ray CT
Yurong ZHANG, Shengxuan XU, Yanhong GAO, Jie GUO, Yinghui CAO, Junzhi ZHANG
《结构与土木工程前沿(英文)》 2020年 第14卷 第6期 页码 1509-1519 doi: 10.1007/s11709-020-0681-9
关键词: permeability microstructure NMR MIP X-CT
标题 作者 时间 类型 操作
Simultaneous acquisition of CT angiography and whole brain CT perfusion images by using multiphase dynamic
Weiwei CHEN, Jianpin QI, Wenzhen ZHU, Wenhua HUANG, Jinmei SONG
期刊论文
The dynamic correction of collimation errors of CT slicing pictures
LIU Ya-xiong, Sekou Sing-are, LI Di-chen, LU Bing-heng
期刊论文
Analyzing the characterization of pore structures and permeability of diesel contaminated clays under different aging conditions
期刊论文
Creep-fatigue crack growth behavior in GH4169 superalloy
Dianyin HU, Xiyuan WANG, Jianxing MAO, Rongqiao WANG
期刊论文
A pilot study on Paxlovid therapy for hemodialysis patients with severe acute respiratory syndrome coronavirus 2 infections
期刊论文
Comparison of CT-guided aspiration to key hole craniotomy in the surgical treatment of spontaneous putaminal
ZHAO Jizong, WANG Dejiang, WANG Shuo, YUAN Ge, KANG Shuai, JI Nan, ZHAO Yuanli, YE Xun, ZHOU Liangfu, ZHOU Dingbiao, WANG Renzhi, WANG Mei
期刊论文
Trauma-induced “Macklin effect” with pneumothorax and large pneumomediastinum, disguised by allergy
null
期刊论文
A study on quality evaluation for bituminous mixture using X-ray CT
Satoshi TANIGUCHI, Keiichiro OGAWA, Jun OTANI, Itaru NISHIZAKI
期刊论文
A miniature triaxial apparatus for investigating the micromechanics of granular soils with
Zhuang CHENG, Jianfeng WANG, Matthew Richard COOP, Guanlin YE
期刊论文
analysis of soil failure on defective underground pipe due to cyclic water supply and drainage using X-ray CT
Toshifumi MUKUNOKI, Naoko KUMANO, Jun OTANI
期刊论文