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

fYear

2007

fDate

12-15 April 2007

Firstpage

9

Lastpage

12

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISBI.2007.356775

Filename

4193209