Umm... actually, it's not. This process is known as cryonics. Cryogenics is a general term pertaining to the science of low-temperature physics, of which cryonics might be considered a specialized branch. Poor editing job by the newspaper.
That's okay, because the passage, "Bodies are rapidly cooled, usually in liquid nitrogen, to preserve DNA and tissue cells. The hope is that future medical advances could allow the bodies to be revived and cured." appears to be cut and pasted from this organization's website. Do a google search and check it out.