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Purpose: To determine if magnetic resonance (MR) imaging data can be used to create rigid models that are accurate representations of the right ventricular outflow tract (RVOT) and pulmonary trunk anatomy and if such models can be used to refine the selection of patients for percutaneous pulmonary valve implantation (PPVI).

Materials and Methods: Institutional review board approval and informed patient consent were obtained. Twelve patients' MR data were analyzed and elaborated for input into a rapid prototyping (RP) system. RP models were successfully built and presented to two experienced cardiologists, who were retrospectively asked if they would have attempted PPVI. Their responses were compared with the documented decisions and outcomes of PPVI.

Results: For four subjects, both cardiologists correctly determined, on the basis of MR image or three-dimensional (3D) RP model findings, that …