发明名称 |
Apparatus and method for reducing X-ray dosage during a fluoroscopic procedure |
摘要 |
The present invention is an apparatus and method for reducing the dosage of X-rays during a fluoroscopic procedure wherein a filter member is used to selectively attenuate the X-ray radiation striking a patient's body. The filter member allows unattenuated X-rays to image an area of interest selected by a physician, thus producing a high intensity, low noise image. However, the areas surrounding the area of interest are imaged with attenuated radiation producing a less intense, more noisy image. A real-time image processing system is used to compensate the image brightness and to potentially filter the compensated region so as to reduce noise. Image quality is thus restored so that a physician can orient the location of a procedure, within a patient's body, and have perspective to the position of area of interest relative to its surroundings.
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申请公布号 |
US5278887(A) |
申请公布日期 |
1994.01.11 |
申请号 |
US19920906148 |
申请日期 |
1992.06.29 |
申请人 |
SIEMENS CORPORATE RESEARCH, INC. |
发明人 |
CHIU, MING-YEE;WILSON, DAVID L. |
分类号 |
A61B6/06;G21K1/10;(IPC1-7):G21K3/00 |
主分类号 |
A61B6/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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