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In the United States, approximately 1 in 200 babies are born each year with harmful congenital heart defects (CHD) that require some form of medical management. Often, these defects consist of holes in the septum (the walls between the heart chambers) and/or abnormal development of the heart chambers or major blood vessels. Surgery is the primary treatment course for many of these patients and, through the use of patches and artificial vessels, it is often possible to repair the defects and recreate the normal blood flow path through the heart.
These techniques are not always simple, however, and the surgeon must take great care not to harm the pumping function of the heart. In more complex cases, the surgeon must decide between multiple repair strategies that will have a major effect on the long-term health of the patient. It would be helpful in such cases for the surgeon to be able to assess the repair options prior to the operation using virtual 3-dimensional representations of that patient's anatomy. Having this ability would remove some of the uncertainty from the decision-making process by providing accurate predictions of post-surgical anatomy.
In fact, the technology exists to include such a surgical planning tool into the standard treatment course for these patients. Using 3D anatomical images, acquired from basic techniques such as magnetic resonance (MR), computed tomography (CT), and echocardiography, engineers at Georgia Tech have the ability to build accurate 3D models of patient anatomy, such as the heart. Using these models with a state-of-the-art graphics manipulation tool, surgeons would have the ability to virtually operate on the patient and select the optimal treatment approach, as previously discussed. Similar techniques have already been developed and used to plan surgeries for a limited subset of CHD patients with a single ventricle physiology.
The purpose of this study is to further develop these techniques and apply them to a broader range of CHD patients. To do this, patients undergoing an appropriate surgical repair will be recruited to participate in the study. Images obtained from pre-operative scans will be used to build the anatomical model, which the surgeon will manipulate to test the different available options. By successfully testing and eventually implementing these techniques in the standard of care for CHD patients, the investigators hypothesize that the optimal approach for reconstruction will be implemented more frequently, and thus patient outcomes will improve.
Observational Model: Case-Only, Time Perspective: Prospective
Double Outlet Right Ventricle
Anatomic Reconstruction and Surgical Planning
Children's Healthcare of Atlanta
Published on BioPortfolio: 2014-08-27T03:19:30-0400
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