New Segment Editor feature: masking in Grow from seeds effect


(Andras Lasso) #1

In the past, “Grow from seeds” effect ignored masking settings. Now region growing can be restricted to certain areas by using “Masking” section in the Segment Editor. Masked area can be defined by image intensity range and/or existing segments.

This can be used for segmenting objects that cannot be easily separated because they have similar image intensity and they are very close to each other (or even fused together in some places). Applications include femur head and hip bone segmentation; or separating vertebrae from each other and from ribs during spine segmentation. The method can be also used for refining or splitting an already created segment.

See this short video how masking simplifies femur segmentation:

The feature is available in today’s nightly Slicer version. Any feedback or questions are welcome.


How can I update my version to 4.11. I ca’t see the option.


(Andras Lasso) #3

What option you do not see?


I mean updating it to new version. Do i need to reinstall slicer or is there an option to just update it.


(Andras Lasso) #5

You need to install the latest nightly version of Slicer. No new user interface elements will appear compared to earlier versions, just the behavior is changed.

(Flav1u) #6

I downloaded the dicom images from the link given in the video description (TCGA-PRAD) subject TCGA-VP-A878. Opening the dicoms in 3D Slicer version 4.10 or 4.11.0 is showing me weird images. Please see image attached. What am I doing wrong?

(Andras Lasso) #7

If you just drag-and-drop a single file then by default only that single file is loaded. In general it is recommended to use the DICOM module to load DICOM data sets.