You all do know what the American Journal of Roentgenology is, don't you?
It's heavily peer reviewed and has exacting authoring standards.
I suspect that if there were anything "hinky" about it, this article wouldn't have seen the light of day, and that subsequent editions of the journal would be full of denunciations of the article and the authors.
I know what MRIs are capable of, and I have absolutely no doubt that something like what is described in this article is possible.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.