Internal-illumination photoacoustic computed tomography
作者: Mucong LiBangxin LanWei LiuJun XiaJunjie Yao
作者单位: 1Duke University
2University at Buffalo North Campus
刊名: Journal of Biomedical Optics, 2018, Vol.23 (3), pp.030506-030506
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.JBO.23.3.030506
关键词: Photoacoustic imagingPhotoacoustic computed tomographyInternal illuminationFiber diffuserDeep imaging
原始语种摘要: We report a photoacoustic computed tomography (PACT) system using a customized optical fiber with a cylindrical diffuser to internally illuminate deep targets. The traditional external light illumination in PACT usually limits the penetration depth to a few centimeters from the tissue surface, mainly due to strong optical attenuation along the light propagation path from the outside in. By contrast, internal light illumination, with external ultrasound detection, can potentially detect much deeper targets. Different from previous internal illumination PACT implementations using forward-looking optical fibers, our internal-illumination PACT system uses a customized optical fiber with a 3-cm-long conoid needle diffuser attached to the fiber tip, which can homogeneously illuminate the...
全文获取路径: SPIE 
影响因子:2.881 (2012)

  • illumination 光照强度
  • tomography 断层x 线摄影
  • optical 光学的
  • imaging 图像形成
  • demonstrate 说明
  • customized 修]定做[制
  • external 外部的
  • phantom 受精台
  • diffuser 漫射体
  • illuminate 照明