Water Relaxation Parameters and the State of Coagulation of a Protein for Vascular Repair

As part of a project to develop MR coagulation (MR-induced RF heating of a coagulable biomaterial) for minimally invasive repair of vascular lesions, we investigate the relationship between the heat coagulation behavior and MR relaxation properties of egg white. This protein solution is a good model for the analogous behavior of human serum albumin solution, an optimal (but expensive) biomaterial for MR coagulation. We find that large changes in both T2 and T1rho clearly indicate the temperature at which the coagulation process occurs, as validated by light scattering measurements.

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