| 基于Medipix的谱微CT(英文) |
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| 引用本文： | James Bennett,Raja Amir,Bruce Dobbs,牟轩沁,魏彪,Anthony Butler,Phillip Butler.基于Medipix的谱微CT(英文)[J].CT理论与应用研究,2012(4):583-596. |
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| 作者姓名： | James Bennett Raja Amir Bruce Dobbs 牟轩沁 魏彪 Anthony Butler Phillip Butler |
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| 作者单位： | Biomedical Imaging Division,VT-WFU School of Biomedical Engineering and Sciences,Virginia Tech;Department of Physics and Astronomy,University of Canterbury;Department of Surgery and Gastroenterology,University of Otago;西安交通大学图像处理与识别研究所;重庆大学光电技术及系统教育部重点实验室;Department of Radiology,University of Otago;European Organization for Nuclear Research(CERN) |
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| 基金项目： | supported in part by NIH/NIBIB grant EB011785,the Ministry of Science and Innovation(New Zealand),a seed grant from Wake Forest Institute for Regenerative Medicine |
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| 摘 要： | 自从几十年前豪斯菲尔德因其突破性工作而赢得诺贝尔奖以来,X线CT已经被广泛的应用到了临床前以及临床应用,并产生了海量的灰度断层图像。由于其固有的光子计数问题涉及到较高的辐射剂量,这些灰度断层图像的软组织对比度差,经常难以提供一些关键性的细节而满足诊断的需要。从物理的角度来看,X线的谱是多能的,获得多能CT(亦被称为谱CT,真彩色CT)图像是可行的。这种谱图像提供了强有力的新诊断信息。近年来,新兴的Medipix技术提供了一种准确而快速的高分辨率能量选择的X线检测技术。本文将以我们小组的研究结果为重点来综述基于Medipix的谱微CT的研究进展。主要内容包括:先进的MediPix检测器,商业化MARS谱微CT的系统与方法,以及混合谱微CT的设计以及彩色扩散现象。
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| 关 键 词： | 多能的 谱成像 Medipix检测器 Medipix全分辨率系统 混合谱微CT 统计迭代重建 主成分分析 |
Medipix-based Spectral Micro-CT |
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| Institution: | Hengyong Yu 1,2,3 , Qiong Xu 2,4 , Peng He 3,5 , James Bennett 3 , Raja Amir 6 , Bruce Dobbs 7 , Mou Xuanqin 4 , Wei Biao 5 , Anthony Butler 8,9 , Phillip Butler 6,9 , Ge Wang 1,2,31.Department of Radiology, Division of Radiologic Sciences, Wake Forest University Health Sciences, Winston-Salem, NC, 27157, USA 2.Biomedical Imaging Division, VT-WFU School of Biomedical Engineering and Sciences, Wake Forest University Health Sciences, Winston-Salem, NC, 27157, USA 3.Biomedical Imaging Division, VT-WFU School of Biomedical Engineering and Sciences, Virginia Tech, Blacksburg, VA 24061, USA 4.Institute of Image Processing and Pattern Recognition, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China 5.The Key Lab of Optoelectronic Technology and Systems of the Education Ministry of China, Chongqing University, Chongqing, 400044, China 6.Department of Physics and Astronomy, University of Canterbury, Christchurch, 8140, New Zealand 7.Department of Surgery and Gastroenterology, University of Otago, Christchurch, 8140, New Zealand 8.Department of Radiology, University of Otago, Christchurch, 8140, New Zealand 9.European Organization for Nuclear Research (CERN), Geneva, Switzerland |
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