发明名称 |
CONTINUOUS COMPUTER TOMOGRAPHY PERFORMING SUPER-SHORT-SCANS AND STRONGER WEIGHTING OF MOST RECENT DATA |
摘要 |
<p>A computer tomography apparatus and method, a computer-readable medium and a program element are provided for examining a region of interest (ROI) of an object or patient in real-time. When only a region of interest is to be reconstructed, it is sufficient to rotate the radiation source and detector elements such that they cover a circular arc whose extension is less than pi+alpha, alpha being the beam angle of the radiation source. This scanning range is called super-short-scan. Super-short-scans produce less data. Consequently image reconstruction is quicker which is very preferable for real-time CT. The CT data can furthermore be weighted in a manner that data detected at the end of a super-short-scan are weighted stronger than data detected at the beginning of a super-short-scan.</p> |
申请公布号 |
EP1885247(A1) |
申请公布日期 |
2008.02.13 |
申请号 |
EP20060728115 |
申请日期 |
2006.05.03 |
申请人 |
PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH;KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
KOEHLER, THOMAS;FORTHMANN, PETER;GRASS, MICHAEL |
分类号 |
A61B6/03;G01N23/04 |
主分类号 |
A61B6/03 |
代理机构 |
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代理人 |
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地址 |
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