Hello, I am Meltem. New here. I have downloaded 3d Slicer 5.8.1. I have chosen the second phase of dynamic contrasted breas MRI to segment, and I want to segment the tumor via threshold (it’s a very complex tumor, manually it would take eons!). But when I click on threshold, it includes whole imaging not only the region of tumor. How can I fix that?
Thanks in advance,
Best regards
If the problem is that there are several areas with the same intensity as the tumor then you can use “Local threshold” effect (provided by SegmentEditorExtraEffects extension).
Note that you may not need a very accurate segmentation of breast tumors as they are removed by a wide margin (it is not a crucial to conserve surrounding tissues as in a brain surgery), but you may just need a simple, resectable shape that safely encompasses the tumor. If this is the case, then you can use the “Surface cut” effect. This effect allows your to draw a simple blob shape around the tumor by a couple of clicks in 1-2 minutes. We use this segmentation method on a touchscreen tablet on 3D tracked ultrasound images while the patient is on the table and it works very well.
Hello, thank you very much.