Chia-Chi Teng
Associate Professor of Information
Technology
Office: CTB 265G
Phone: (801) 422-1297
FAX: (801) 422-0490
Email: ccteng at byu.edu
Schedule Biography VITAE Publications Patents Research and Development
Research Projects
CT Image Registration and Retrieval
My Ph.D. dissertation describes a new methodology for obtaining contours of lymph node regions in CT scans of cancer patients. The method first identifies the most similar reference patients using a similarity measure based on landmarks that can be reliably extracted from the images. It then uses a constrained optimization procedure to find the best deformable mapping from the new patient to the reference patient. The mapping is used to map the predrawn contours on the reference patient to the CT scan of the new patient, so that the lymph node regions can be reliably found and the radiation treatment accordingly planned.
3D Skull Shape Analysis
Craniosynostosis is a congenital disease which consists of premature fusion of one or more cranial sutures, resulting in an abnormal head shape. Patients are usually treated by cranial vault expansion surgery to minimize the potential for brain damage. Full thickness cranial defects result from the expansion surgery, with the size directly proportional to the degree of expansion. The growing cranial skeleton has a unique regenerative capacity to heal small defects; however, when this regenerative capacity is exceeded, the defect is classed as one of critical size and requires surgical treatment to restore protection to the underlying brain. Although what constitutes a critical cranial defect is well known in animal models, it is not as clear for pediatric human skulls. The purpose of this study is to investigate a method that can effectively and accurately quantify healing of the pediatric cranial defect surface after cranial vault expansion surgery for craniosynostosis.
