Abstract
Endovascular thoracic aortic repair (TEVAR) has become the treatment modality of diverse aortic pathology. We report the use of patient-specific simulation using a dedicated PROcedure Rehearsal Studio (PRS) platform (Simbionix USA Corp, Cleveland, OH) before TEVAR and evaluate the feasibility and realism of this technology. Virtual three-dimensional models of the patient's relevant anatomy were reconstructed from computed tomography data. PRS was used in 2 patients before TEVAR. In a multicenter retrospective study, we evaluated how PRS compares with real TEVAR. PRS before TEVAR was feasible and demonstrated good correlation with the actual procedure. In the retrospective study, 16 patients were reconstructed (median duration, 26 minutes; interquartile range, 21 to 36 minutes). The realism of the simulated angiographies was rated highly (median, 4; interquartile range, 3 to 4). Final angiography revealed type I endoleak in 2 simulated cases and 1 real case. Patient-specific rehearsal before TEVAR is feasible and permits the creation of realistic case studies; however, software updates are required to improve face validity and to foster implementation in clinical practice.
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