Phase Contrast MRI Velocimetry of a Stereolithographic Total Cavopulmonary Connection at 1.5 T and 3 T
Yoganathan A, Skrinjar O, Teisseyre T, Kitajima H, Sundareswaran K, Oshinski J
Georgia Institute of Technology
MRI at 3 T has yet to be applied to in vitro phase contrast velocimetry in complex anatomies. A stereolithographic model is manufactured to reproduce the patient-specific anatomy of a total cavopulmonary connection as imaged by in vivo MRI. The anatomic replica is placed in an experimental flow loop, where high-resolution flow data are acquired at 1.5 T and 3 T. Resultant 3-D 3-component flow fields are compared. The extracted hemodynamic data provide keen insight to fluid structures in the complex anatomy and highlight differences of in vitro phase contrast MRI at 1.5 T and 3 T.