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Detection of implanted iodine-125 seeds in postoperative CT is a necessary step for evaluating the output of seed implantation brachytherapy of lung tumor. In this paper, we propose a semi-automated method to detect implanted seeds in postoperative lung CT. Three main steps are included in our approach. Firstly, the ROI (Region Of Interest) containing all seeds is extracted from the original image...
Post-implant dosimetric evaluation is a key procedure of brachytherapy. The way of traditional manual localizing seed is lack of efficiency. Therefore, Automatic seed detection method is needed to efficiently and accurately calculate the centroid and orientation. There are some shape differences among seeds, caused by imaging features. Single seed may be presented on more than one slice and seeds...
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