发明名称 |
Shape estimates and temporal registration of lesions and nodules |
摘要 |
A method for refining shape estimates of detected abnormalities in medical images, particularly for the detection of pulmonary lesions in CT imagery is described. A cue point is refined prior to an initially segmentation of the lesion. A radial gradient is computed for points on an initial segmented lesion. Portions of the lesion with radial gradients deviating beyond a threshold angle are removed from the lesion. Registering imagery from more than one CT exam uses a high intensity structure, essentially bone, to provide coarse and fine alignment of a set of two-dimensional images is also described. A MIP image is formed from the three-dimensional images. A second MIP image is then formed from imagery. The second MIP image is correlated with the first MIP image to determine a preferred registration location.
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申请公布号 |
US2005111720(A1) |
申请公布日期 |
2005.05.26 |
申请号 |
US20040993176 |
申请日期 |
2004.11.19 |
申请人 |
GURCAN METIN N.;HARDIE RUSSELL C.;ROGERS STEVEN K. |
发明人 |
GURCAN METIN N.;HARDIE RUSSELL C.;ROGERS STEVEN K. |
分类号 |
G06K9/00;G06T5/00;G06T7/00;(IPC1-7):G06K9/00 |
主分类号 |
G06K9/00 |
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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