Segment radioactive seeds in brachytherapy patients and calculate dose

Hi Csaba,
I am working with Tina Kapur now. I am a doctor and physicist focus on 125I seeds brachytherapy in China. It is difficult to use TPS to segment the seed in CT automatically. After the brachytherapy, the physicist have to pick up the seeds one by one manually to finish the postoperative dose calculation. This is difficult sometimes and time consuming. Is there a way to segment the seeds with slicer easily? Maybe we can use slicer to calculate the dose after seeds and tumor segmentation. In the brachytherapy TPS, the seeds were assumed as a point source to calculate dose. So if we can segment the seeds and find the center of them, we can assumed the center as the point source. Then dose can be calculated. For the tumor and organ at risks, at first we can segmented them manually or use the segmentation method of radiotherapy.
Thank you very much.
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