Hyperpolarized Water for Interventional Angiography

Jan Henrik Ardenkjaer-Larsen¹, Christoffer Laustsen², Benjamin Pullinger³, Stephen Kadlecek³, Kiarash Emami³, Rahim Rizi³

We demonstrate a novel method of hyperpolarizing water based on the dissolution-DNP method. The method has several advantages: a) very high polarization (tens of percent) and b) long relaxation times (by dilution in D2O). A magnetization equivalent to more than 70 T is demonstrated in phantoms. The applicability of the method is demonstrated in the rat by several angiographic acquisitions.