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Abstract #3534

Hyperpolarized Water for Interventional Angiography

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

1GE Healthcare, Broendby, Denmark; 2DRCMR, Hvidovre, Denmark; 3University of Pennsylvania, United States

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.