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AssigneeMax-Planck-Gesellschaft zur Forderung der Wissenschaften e.V.
InventorsStefan Glöggler, Sergey Korchak, Salvatore Mamone
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The present invention relates to a method for transferring a two-spin order of a molecule (e.g. parahydrogen) into a hyperpolarization of at least one heteronucleus, the method comprising the steps of: providing a molecule (e.g. parahydrogen pH2) comprising two protons and at least one heteronucleus (S3, S4), the protons having nuclear spins being coupled to a nuclear spin of the at least one heteronucleus; exposing the protons and the at least one heteronucleus to an e.g. homogeneous magnetic field (B0) in a z-direction, the z-direction forming a right-handed orthogonal coordinate system with an x- and a y-direction; and applying a sequence of radio frequency pulses to the protons and the at least one heteronucleus in order to transfer said two-spin order into the hyperpolarization of the at least one heteronucleus, wherein said sequence of radio frequency pulses comprises a first, a second, and a third group (NA, NB, NC) of 180° radio frequency pulses, wherein the first group (NA) of 180° radio frequency pulses is consecutively applied nA times during a first time interval (τA) and wherein the second group (NB) of 180° radio frequency pulses is consecutively applied nB times during a second time interval (τB) after the last first group, and wherein the third group (NC) of 180° radio frequency pulses is consecutively applied nC times during a third time interval (τC) after the last second group, wherein nA, nB, nC are integer numbers, respectively.
A method for transferring a two-spin order of a molecule into a hyperpolarization of at least one heteronucleus (S3, S4), the method comprising the steps of:
A method for obtaining an injectable solution comprising a contrast agent, wherein
Dependencies are inferred from the claim text.