Team 21

2-D Works: Software Tool for Patient Specific Stencils used in Aortic Graft Repair

Team Members: Brandon Boyle, Alexandria Castillo, Emina Causevic, Emily Steeley - SBHSE

Team Mentors: Dr. Jonathan Plasencia - Phoenix Children's Hospital
Dr. Suren Jayasuriya - AME & ECEE

YouTube Link: View the video link below before joining the zoom meeting

Zoom Link: https://asu.zoom.us/j/93973876011

Abstract

In the United States, 1 in every 2,500 babies are born with coarctation of the aorta and must undergo open heart surgery to repair this defect to establish normal blood flow through the most important blood vessel in our bodies. The coarctation obstructs blood flow from the heart to the lower part of their body, requiring the heart to work harder in order to pump blood through the narrowed channel. This congenital heart defect can be treated through surgery where a graft is used to effectively dilate the vessel lumen. Currently, cardiac surgeons enter this open heart surgery with no initial knowledge about the graft shape or size requirements. Because they are unaware of how large the graft will need to be, they instead have to repeatedly eyeball the size beside the patient’s incised aorta all while the patient is on bypass. Further, the graft is not always cut appropriately due to unavoidable human error. This results in postoperative complications like kinking that could require follow up surgeries, extra costs and more time for a pediatric patient to spend on bypass. The purpose of our project is to help develop a software tool that physicians can use in order to aid in aortic coarctation and hypoplasia repair. The main goal of our device is to reduce the number of complications post-surgery which will in turn reduce cost and risk. Our team has focused on demonstrating the process of obtaining the dimensions of the graft size through interpolation and subtraction.

Video: