Title :
A REALISTIC BRAIN PHANTOM FOR 3D DEFORMATION RECOVERY
Author :
DeLorenzo, C. ; Papademetris, X. ; Vives, K.P. ; Spencer, D.D. ; Duncan, J.S.
Author_Institution :
Dept. of Biomed. Eng., Yale Univ., New Haven, CT
Abstract :
Soft tissue deformation occurs during neurosurgery causing misalignment between preoperatively acquired images and the intraoperative brain. Compensation for this deformation is often accomplished using sparse intraoperative data from the exposed cortical surface combined with a biomechanical model. While simulations provide an important tool for testing these surface tracking algorithms, intraoperative conditions are most closely modeled using physical brain phantoms. We have developed a realistic silicone brain phantom and have used this phantom to test our surface tracking algorithm. The physical properties of this phantom allowed reliable testing of intraoperative surface tracking in a controlled environment
Keywords :
biomechanics; biomedical MRI; brain; brain models; deformation; image registration; medical image processing; neurophysiology; phantoms; surgery; tracking; biomechanical model; brain phantom; exposed cortical surface; image misalignment; image registration; intraoperative brain; intraoperative surface tracking; magnetic resonance images; neurosurgery; preoperatively acquired images; silicone brain phantom; soft tissue deformation; sparse intraoperative image; surface tracking algorithm; three-dimensional deformation recovery; Biological tissues; Brain modeling; Computed tomography; Deformable models; Imaging phantoms; Neurosurgery; Sealing materials; Skull; Surgery; Testing;
Conference_Titel :
Biomedical Imaging: From Nano to Macro, 2007. ISBI 2007. 4th IEEE International Symposium on
Conference_Location :
Arlington, VA
Print_ISBN :
1-4244-0672-2
Electronic_ISBN :
1-4244-0672-2
DOI :
10.1109/ISBI.2007.356775
