Parahydrogen-induced polarization
{{Short description|Technique used in magnetic resonance imaging}}
Parahydrogen-induced polarization (PHIP) is a technique used in magnetic resonance imaging.
The technique relies on the incorporation of hyperpolarized H2 into molecules, usually by hydrogenation.{{cite journal|journal=Progress in Nuclear Magnetic Resonance Spectroscopy|volume=67|year=2012|pages=1–48|title=The theory and practice of hyperpolarization in magnetic resonance using parahydrogen|author=Richard A.Green |author2=Ralph W.Adams |author3=Simon B.Duckett |author4=Ryan E.Mewis |author5=David C.Williamson |author6=Gary G.R.Green |doi=10.1016/j.pnmrs.2012.03.001|pmid=23101588 }}