Bassam Al-Fatly there is a nice online tool which can convert Talairch (AC-centered) coordinates to its MNI equivalent. It can be found here: https://bioimagesuiteweb.github.io/webapp/mni2tal.html

If you don't wish to convert and simply want a commonly used probabilistic MNI ViM location, this paper lists X=13.05, Y= -18.36, Z = -2.01 as a good coordinate to use to target this thalamic nucleus :

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