With decent scores, getting into a neurology residency as an IMG is not impossible.
There are IMG neurologists who have trained in neurointerventional. They exist. Neurology is not the easiest starting point to get into an endovascular fellowship, even under the best of circumstances. Many go through stroke or NCC fellowships first, before even starting endovascular, and the spots are competitive.
Going into neurology because you like endovascular procedures is a bit backwards. If your primary love is playing with catheters, then go into vascular surgery or radiology. Go into neurology because you want to be a neurologist.