发明名称 |
SYSTEM AND METHOD FOR X-RAY FLUOROSCOPIC IMAGING |
摘要 |
A system for x-ray fluoroscopic imaging of bodily tissue in which a scintillation screen and a charge coupled device (CCD) is used to accurately image selected tissue. An x-ray source generates x-rays which pass through a region of a subject's body, forming an x-ray image which reaches the scintillation screen. The scintillation screen re-radiates a spatial intensity pattern corresponding to the image, the pattern being detected by the CCD sensor. In a preferred embodiment the imager uses four 8 x 8-cm three-side buttable CCDs coupled to a CsI:Tl scintillator by straight (non-tapering) fiberoptics and tiled to achieve a field of view (FOV) of 16 x 16-cm at the image plane. Larger FOVs can be achieved by tiling more CCDs in a similar manner. The imaging system can be operated in a plurality of pixel pitch modes such as 78,156 or 234- mu m pixel pitch modes. The CCD sensor may also provide multi-resolution imaging. The image is digitized by the sensor and processed by a controller before being stored as an electronic image. Other preferred embodiments may include each image being directed on flat panel imagers made from but not limited to, amorphous silicon and/or amorphous selenium to generate individual electronic representations of the separate images used for diagnostic or therapeutic applications. |
申请公布号 |
WO03045246(A2) |
申请公布日期 |
2003.06.05 |
申请号 |
WO2002US37435 |
申请日期 |
2002.11.21 |
申请人 |
UNIVERSITY OF MASSACHUSETTS MEDICAL CENTER;KARELLAS, ANDREW;VEDANTHAM, SRINIVASAN;SURYANARAYANAN, SANKARARAMAN |
发明人 |
KARELLAS, ANDREW;VEDANTHAM, SRINIVASAN;SURYANARAYANAN, SANKARARAMAN |
分类号 |
A61B6/00;H01L27/148;H01L31/0232 |
主分类号 |
A61B6/00 |
代理机构 |
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