2007 Volume 24 Issue 4 Pages 126-130
We have developed the temporal subtraction method of thoracic CT images by use of displacements of ribs and elastic object model. In the first step, we calculated the rotation parameters of the extracted rib centerlines those were extracted by a plane sweep method. In the next step, we estimated accuracy of registration for images by inputting displacements of the extracted ribs to elastic object model. In the third step, we registered one image to the other image with estimated parameters. Finally, subtracted images were obtained. We applied this method to 14 pairs of thoracic CT image series for evaluation of our method.
Conference Report (In Japanese)
Research of Radiologic Imaging : Analysis and Evaluation (In Japanese)
Research of Radiologic Imaging : Response Function (In Japanese)
