公开(公告)号：US20110190616A1

公开(公告)日：2011-08-04

申请号：US12601285

申请日：2008-05-22

申请人： Tshilidizi Marwala ,  David Milton Rubin ,  David Mark Starfield

发明人： Tshilidizi Marwala ,  David Milton Rubin ,  David Mark Starfield

IPC分类号： A61B6/00

CPC分类号： G01T1/295 ,  A61B6/4258 ,  A61B6/583

摘要： This invention relates to a coded aperture mask for use in diagnostic nuclear medicine imaging. The coded aperture mask consists of a sheet of radiation opaque mask material having a series of apertures extending therethrough. The thickness of mask material has an attenuation percentage of less than 75% and, in a preferred embodiment, about equal to 29%. The coded aperture mask also, in a preferred embodiment, has a lead attenuation tube and has a projection of the smallest hole occupying the same area as a single pixel of a detector. The invention extends to a diagnostic nuclear medicine imaging system which uses a 16 bit gamma camera as a radiation detector.

摘要翻译： 本发明涉及用于诊断核医学成像的编码孔径掩模。 编码孔径掩模由具有延伸穿过其中的一系列孔的辐射不透明掩模材料片组成。 掩模材料的厚度具有小于75％的衰减百分比，并且在优选实施例中，大约等于29％。 在优选实施例中，编码孔径掩模还具有引线衰减管，并且具有与检测器的单个像素占据相同面积的最小孔的突起。 本发明扩展到使用16位伽马照相机作为辐射检测器的诊断性核医学成像系统。