基于干涉型扩散波光谱学的人脑血液流量监测

来源: 光学与电子科技学院 作者:张传亮 添加日期:2018-06-12 08:37:09 阅读次数: 840

百度码报 www.9g8pn.cn        Interferometric diffusing-wave spectroscopy for blood flow monitoring of the human brain
 ?。ɑ诟缮嫘屠┥⒉ü馄籽У娜四匝毫髁考嗖猓?br/>  报告时间:2018年6月19日(星期二)上午10:00
  报告地点:赛博南楼403-1会议室
  报告人:周文俊博士(美国加州大学戴维斯分校)
  报告内容简介:
  Though cerebral blood flow (CBF) is a target parameter in neurocritical care, a non-invasive and continuous CBF monitor has remained elusive. Conventional imaging modalities such as Magnetic Resonance Imaging (MRI) and Computed Tomography (CT) are impractical for continuous monitoring, while Transcranial Doppler (TCD) Ultrasound measures velocity, not flow, and can be technically challenging. Near-infrared light technologies to measure CBF in adult humans face a unique challenge; they must sense light fluxes that are both coherent and very weak, returning from deep beneath the surface. The most successful optical CBF technology for the human brain, Diffuse Correlation Spectroscopy (DCS), uses one or more single/few mode photon counting channels, making DCS systems either expensive, or restricted in terms of speed and photon counts. Here, we reduce cost and improve performance by liberating optical CBF monitors from the expense and complexity of photon counting. The fundamental innovation is an optical “trick” known as interferometry, where the weak optical field returning from the brain is boosted by a strong reference field. This enables us to replace photon counting detectors with inexpensive pixels on a CMOS camera, in a method called interferometric Diffusing Wave Spectroscopy (iDWS). We discuss the implications of this paradigm shift for CBF monitoring and the field of diffuse optics in general.
  报告人简介:
  Dr. Wenjun Zhou received a B.Sc. degree in Science and Technology of Optical Information in 2008 and an M.Sc degree in Optical Engineering in 2011, both from China Jiliang University. In 2010, he worked as a Visiting Project Officer in School of Chemical and Biomedical Engineering in Nanyang Technological University, Singapore.  In 2015, he received a Ph.D. degree under the supervision of Prof. Jacques Albert in the Advanced Photonic Components Group in Carleton University, Canada.  He was awarded the Chinese Government Award for Outstanding Self-Financed Students Abroad in 2013 and the Senate Medal for Outstanding Academic Achievement of Carleton University in 2015.  Since 2016, he is working with Prof. Vivek J. Srinivasan as a postdoctoral fellow in the Department of Biomedical Engineering in University of California Davis.  His main research interests include interferometric diffusing-wave spectroscopy of the human brain, optical fiber sensors, fiber Bragg gratings, ultrathin gold film, and surface plasmon resonance sensors. He has published 22 papers in Optica, Laser & Photonics Reviews, Optics Letters, Optics Express and so on (14 papers with first or co-first author, and h-index of 14). 

光电学院
2018年6月11日

分享至:
  • 烂车先烂底!如何保护脆弱的汽车底盘? 2019-02-10
  • “善款资助副局长儿子留学”真相须尽快落地 2019-01-21
  • 河北法院:打造互联网+诉非衔接的人民法庭工作新机制 2019-01-21
  • 正义感爆棚:流浪狗“路见不平” 赶跑打劫男子 2019-01-19
  • 全国600多万网民通过移动直播看新疆赛龙舟包粽子 2019-01-07
  • 暑期未到 舟山海滨浴场已开启“下饺子”模式 2019-01-07
  • 杭报集团党委书记、社长董悦祝贺人民日报创刊70周年 2018-12-24
  • 青藏线上的绿色守护者 2018-12-24
  • 卢卡库“梅开二度” 比利时3比0巴拿马 2018-12-15
  • 中国端午节文化走进韩国校园 2018-12-09
  • 家电促销:50英寸彩电成主角 2018-10-02
  • 一个企业里的劳动力,有可能被叫做职工,意指按职责做事的人,也可能被叫做劳工,意指按劳动力做事的人。不同的称呼,体现了不同的企业性质与追求。懂这点,你才明白这“意 2018-10-02
  • 陈晓陈妍希大婚中式婚纱美翻天 张歆艺刘诗诗Angelababy佟丽娅 女星凤冠霞帔谁最美 2018-09-30
  • 从稳中向好发展态势看我国经济良好前景 2018-09-06
  • 317| 573| 385| 871| 357| 717| 191| 592| 837| 848|