How to measure crack size?

can we measure the crack dimension in D slicer, how?

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Yes. You can measure distances using annotation ruler tool. Select “Ruler” from the annotation toolbar and click on two points in the image. See more information here:

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i appreciate the fast and focused answered by you.

thanks sir it helps me a lot.

Below is the screenshot of my Modify Annotation Properties. Where I can modify the type and choose ruler function? image. In addition, where I can modify the advanced property as shown below: image. Thanks.

Select “Ruler” on the place toolbar before you click on the image:


That will create rulers when you click on the image. You cannot change the annotation type after it is placed.

Great! That is exactly what I want. Thank you so much!