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公开(公告)号:US07831024B2
公开(公告)日:2010-11-09
申请号:US12293422
申请日:2007-03-19
申请人: Scott Metzler , Roberto Accorsi , Robert M. Lewitt
发明人: Scott Metzler , Roberto Accorsi , Robert M. Lewitt
IPC分类号: G21K1/04
CPC分类号: G01T1/1648 , G02B27/30
摘要: This invention is directed to a collimator and collimation techniques. Specifically, the invention is directed to a collimator and method for collimation wherein the collimator combines the resolution and sensitivity properties of pinhole Single Photon Emission Computed Tomography (SPECT) imaging with the 2D complete-sampling properties of fan-beam collimators.
摘要翻译: 本发明涉及一种准直器和准直技术。 具体地,本发明涉及准直器和准直方法,其中准直器将针孔单光子发射计算机断层扫描(SPECT)成像的分辨率和灵敏度特性与扇形光束准直器的2D完全采样特性相结合。
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公开(公告)号:US20090304150A1
公开(公告)日:2009-12-10
申请号:US12293422
申请日:2007-03-19
申请人: Scott Metzler , Roberto Accorsi , Robert M. Lewitt
发明人: Scott Metzler , Roberto Accorsi , Robert M. Lewitt
CPC分类号: G01T1/1648 , G02B27/30
摘要: This invention is directed to a collimator and collimation techniques. Specifically, the invention is directed to a collimator and method for collimation wherein the collimator combines the resolution and sensitivity properties of pinhole Single Photon Emission Computed Tomography (SPECT) imaging with the 2D complete-sampling properties of fan-beam collimators.
摘要翻译: 本发明涉及一种准直器和准直技术。 具体地,本发明涉及准直器和准直方法,其中准直器将针孔单光子发射计算机断层扫描(SPECT)成像的分辨率和灵敏度特性与扇形光束准直器的2D完全采样特性相结合。
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3.
公开(公告)号:US5331553A
公开(公告)日:1994-07-19
申请号:US869523
申请日:1992-04-15
申请人: Gerd Muehllehner , Robert M. Lewitt
发明人: Gerd Muehllehner , Robert M. Lewitt
CPC分类号: G01T1/2985 , G06T17/00
摘要: Images are reconstructed using multi-slice rebinning of raw data to create a stack of two-dimensional data sets. A three-dimensional image is reconstructed slice-by-slice from the data sets and the rebinned data is axially filtered to reduce blurring resulting from the rebinning, the filtering being performed either before or after reconstruction of the three-dimensional image.
摘要翻译: 使用原始数据的多片重组来创建图像以创建二维数据集的堆叠。 从数据集逐片重建三维图像,并且重新排列的数据被轴向过滤以减少由重新归一化引起的模糊,在三维图像重建之前或之后进行滤波。
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