A new method of mapping 3D contours on four-dimensional computed tomography data

Zhuolei Duan

doi:10.1117/12.2030942

19 July 2013 A new method of mapping 3D contours on four-dimensional computed tomography data

Zhuolei Duan

Proceedings Volume 8878, Fifth International Conference on Digital Image Processing (ICDIP 2013); 88784G (2013) https://doi.org/10.1117/12.2030942
Event: Fifth International Conference on Digital Image Processing, 2013, Beijing, China

Abstract

In radiotherapy treatment planning, tumor segmentation has a great significance. However, tumor volumes and anatomical structures are manually contoured for dose calculation, which takes time for physicians. The purpose of the study is to describe a new and automated method for generating contours. A few high curvature points are manually drawn on a CT slice. Then Fourier interpolation is used to complete the contour. Consequently, a deformable image registration method based on ‘optical flow’ is used to map the original contour to other slices. This technique has been applied successfully to contour anatomical structures and tumors. And the difference of the volume and the geometry center between the generated contours and the original contours is in the accepted range.

Citation Download Citation

Zhuolei Duan "A new method of mapping 3D contours on four-dimensional computed tomography data", Proc. SPIE 8878, Fifth International Conference on Digital Image Processing (ICDIP 2013), 88784G (19 July 2013); https://doi.org/10.1117/12.2030942

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