Shape estimates and temporal registration of lesions and...

Details Shape estimates and temporal registration of lesions and... Shape estimates and temporal registration of lesions and...

2004-11-19

2009-02-03

Dang, Duy M (Department: 2624)

Image analysis

Applications

Biomedical applications

C382S128000

Reexamination Certificate

active

07486812

ABSTRACT:
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.

REFERENCES:
patent: 5531520 (1996-07-01), Grimson et al.
patent: 5636255 (1997-06-01), Ellis
patent: 6466043 (2002-10-01), Khoury et al.
Zhao et al.; Two-Dimensional Multi-Criterion Segmentation of Pulmonary Nodules on Helical CT Images; American Association of Physicists in Medicine; Jun. 1999; 889-895; vol. 26 No. 6.
Fan et al.; Automatic Segmentation of Pulmonary Nodules by Using Dynamic 3D Cross-correlation for interactive CAD Systems; Medical Imaging; 2002; 1362-1369; Proceedings of SPIE vol. 4684; Image Processing.

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