发明名称 |
Imaging internal structures |
摘要 |
An apparatus, method and software module for selecting phase-correlated images from the output of a scanner such as a cone beam CT scanner operates by collapsing the images derived from the series from two dimensions to one dimension by summing the intensities of pixels along a dimension transverse to the one dimension, producing a further image from a composite of the one-dimensional images obtained from images in the series, analysing the further image for periodic patterns, and selecting from the series images having like phase in that periodic pattern. If desired, a plurality of reconstructions can be derived at different phases. The analysis of the further image for periodic patterns can include comparing the one-dimensional images therein, to identify a movement of features in that dimension. This allows (inter alia) the accurate determination of the breathing cycle in a patient and a concomitant improvement in the quality of CT scans by using phase-correlated images. |
申请公布号 |
US2004234115(A1) |
申请公布日期 |
2004.11.25 |
申请号 |
US20040760628 |
申请日期 |
2004.01.20 |
申请人 |
ZIJP LAMBERT;BROWN KEVIN JOHN;JAFFRAY DAVID;SIEWERDSEN JEFFREY H.;VAN HERK MARCEL;SONKE JAN-JAKOB |
发明人 |
ZIJP LAMBERT;BROWN KEVIN JOHN;JAFFRAY DAVID;SIEWERDSEN JEFFREY H.;VAN HERK MARCEL;SONKE JAN-JAKOB |
分类号 |
A61N5/10;G06K9/00;G06T5/00;G06T7/00;G06T7/20;G06T11/00;H05G1/10;(IPC1-7):G06K9/00 |
主分类号 |
A61N5/10 |
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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