Hello @nilosalamat50 and welcome to Mayo Clinic Connect. I can see you are interested in feedback on clot removal prior to having a perispinal injection.
Members like @predictable and @rafeeq765 have shared about their experience with ischemic stroke, either their own or a family member's and may have additional information they can share with you regarding your question.
To clarify, for what are you hoping you would qualify? Have you consulted with a provider on this question yet?