Volumetric intraoperative brain deformation compensation: model development and phantom validation.

IEEE Transactions on Medical Imaging
Christine DelorenzoJames S Duncan

Abstract

During neurosurgery, nonrigid brain deformation may affect the reliability of tissue localization based on preoperative images. To provide accurate surgical guidance in these cases, preoperative images must be updated to reflect the intraoperative brain. This can be accomplished by warping these preoperative images using a biomechanical model. Due to the possible complexity of this deformation, intraoperative information is often required to guide the model solution. In this paper, a linear elastic model of the brain is developed to infer volumetric brain deformation associated with measured intraoperative cortical surface displacement. The developed model relies on known material properties of brain tissue, and does not require further knowledge about intraoperative conditions. To provide an initial estimation of volumetric model accuracy, as well as determine the model's sensitivity to the specified material parameters and surface displacements, a realistic brain phantom was developed. Phantom results indicate that the linear elastic model significantly reduced localization error due to brain shift, from > 16 mm to under 5 mm, on average. In addition, though in vivo quantitative validation is necessary, preliminary applicatio...Continue Reading

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Citations

Jun 4, 2013·Neurosurgical Focus·Sandra L PoliachikEdward J Novotny
May 23, 2014·IEEE Transactions on Bio-medical Engineering·Amber L SimpsonMichael I Miga
Oct 11, 2013·IEEE Transactions on Medical Imaging·Daniel RuckerMichael Miga
Dec 3, 2014·ISA Transactions·M ShakaramiH A Talebi
Sep 3, 2016·Medical Image Analysis·Ian J GerardD Louis Collins
Mar 13, 2019·British Journal of Neurosurgery·Krishnapundha Bunyaratavej, Piyanat Wangsawatwong
Dec 6, 2016·The International Journal of Medical Robotics + Computer Assisted Surgery : MRCAS·Amrollah MohammadiShapour Shirani

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