title: Automatic hole repairing for cranioplasty using Bézier surface approximation.
abstract: Cranioplasty is the procedure that repairs holes or defects in the skull with cranial implants. When the bone from the hole is missing, damaged, or infected, the defect needs to be covered with an artificial plate to protect the brain. In this paper, a hole-repairing algorithm is developed to aid in shaping artificial plates for Cranioplasty, by describing a method for filling holes in defective biomodels with unstructured triangular surface meshes or in stereo-lithography format. The resulting patching meshes interpolate the shape and density of the surrounding mesh. The steps in repairing a hole include hole identification, hole triangulations using Genetic Algorithm optimization, and a customized advancing-front meshing technique using surface approximations based on a Quartic Bézier patch/surface.
authors.affiliation: Institute of High Performance Computing, Singapore. chongcs@ihpc.a-star.edu.sg
authors.forename: Chiet Sing
authors.initials: CS
authors.lastname: Chong
authors.forename: Heowpueh
authors.initials: H
authors.lastname: Lee
authors.forename: A Senthil
authors.initials: AS
authors.lastname: Kumar
mesh_terms: D000465:Algorithms; D001860:Bone Plates; D003198:Computer Simulation; D017076:Computer-Aided Design; D003399:Craniotomy / Q000295:instrumentation*; D006801:Humans; D019736:Prostheses and Implants; D011474:Prosthesis Design; D011859:Radiography; D012886:Skull / Q000000981:diagnostic imaging / Q000601:surgery; D013526:Surgical Mesh; D014025:Titanium
chemical_list: D014025:Titanium