发明名称 |
Coded aperture masks for radiation-based medical imaging |
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. |
申请公布号 |
US8237124(B2) |
申请公布日期 |
2012.08.07 |
申请号 |
US20080601285 |
申请日期 |
2008.05.22 |
申请人 |
MARWALA TSHILIDZI;RUBIN DAVID MILTON;STARFIELD DAVID MARK;UNIVERSITY OF THE WITWATERSRAND, JOHANNESBURG |
发明人 |
MARWALA TSHILIDZI;RUBIN DAVID MILTON;STARFIELD DAVID MARK |
分类号 |
G01T1/164 |
主分类号 |
G01T1/164 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|