Multiview Hilbert transformation in full-ring transducer array-based photoacoustic computed tomography
作者: Lei LiLiren ZhuYuecheng ShenLihong V. Wang
作者单位: 1Washington University in St. Louis
2California Institute of Technology
刊名: Journal of Biomedical Optics, 2017, Vol.22 (7), pp.076017-076017
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.JBO.22.7.076017
关键词: photoacoustic computed tomographyHilbert transformationmultiview reconstructionfull-view acoustic detectionwhole-body imaging
原始语种摘要: Based on the photoacoustic (PA) effect, PA tomography directly measures specific optical absorption, i.e., absorbed optical energy per unit volume. We recently developed a full-ring ultrasonic transducer array-based photoacoustic computed tomography (PACT) system for small-animal whole-body imaging. The system has a full-view detection angle and high in-plane resolution ( ∼ 100 μ m ). However, due to the bandpass frequency response of the piezoelectric transducer elements and the limited elevational detection coverage of the full-ring transducer array, the reconstructed images present bipolar (i.e., both positive and negative) pixel values, which cause ambiguities in image interpretation for physicians and biologists. We propose a multiview Hilbert transformation method to recover the...
全文获取路径: SPIE  (合作)
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来源刊物:
影响因子:2.881 (2012)

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关键词翻译
关键词翻译
  •  被吸收的
  • transducer 转换器
  • array 阵列
  • photoacoustic 光声的
  • tomography 断层x 线摄影
  • transformation 变换
  • absorbed 被吸收的
  • image 被吸收的
  • effectiveness 有效性
  • imaging 图像形成
  • reconstructed 修]重构[建