What naming convention do you use when treating multiple brain mets with SRS?

I don't have any special naming convention. I just try to give each metastasis a different name. So if 3 metastases in the L frontal lobe, I might call them L frontal sup, L frontal med, L frontal inf. But this question raises a various serious issue, and that is the confusion that can arise as to whether a lesion has been previously treated or not. It is always important to have all the detailed information/images regarding prior SRS treatments. If a patient is being considered for another sess...