How can I measure the 3D blood vessels, including the diameter, density and branch?

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Bruno Martin

You need to be more specific. Are you working in a 3D volume, what is your imaging modality, protocol (contrast agents usage, etc.).

The availability of software, or even the algorithm if no software is available, will be greatly influenced by your answers to these questions...

Nek Valous

Check this out: http://adm.irbbarcelona.org/image-j-fiji#TOC-Blood-vessel-segmentation-and-network-analysis

Good suggestion Nek!