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Preoperative brain shift: study of three surgical cases
2008
Medical Imaging 2008: Visualization, Image-guided Procedures, and Modeling
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We present a study of three surgical cases with tumors accompanied with edema and where corticosteroids were administered and monitored during a preoperative stage [t 0 , t 1 = t 0 + 10 days]. ...
Intraoperative brain deformation has been previously identified by many research groups and related update of preoperative images has also been studied. ...
Brassier and all people of the department of neurosurgery (C. Haegelen, S. Diabira) and radiology (J-C. Ferré, B. Carsin) of the Pontchaillou Hospital. We thank N. Wiest-Daesslé and S. ...
doi:10.1117/12.772634
dblp:conf/miigp/GanaouiMDJ08
fatcat:sdzqyoxnmbbv3fvdvd4ppjrake
Is preoperative brain midline shift a determinant factor for neurological improvement after cranioplasty?
2015
Journal of the Formosan Medical Association
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The presence of a preoperative brain midline shift may be an isolated determinant for the prediction of the outcome after cranioplasty. ...
improvement in consciousness after cranioplasty than those without a brain midline shift. ...
Acknowledgments This study was supported by Grant CMRPG 680541 from the Chang Gung Medical Research Council. ...
doi:10.1016/j.jfma.2013.09.008
pmid:24113352
fatcat:jr6k2ipv2zfrzfxjlvb5vcj5zi
A Fast and Efficient Method to Compensate for Brain Shift for Tumor Resection Therapies Measured Between Preoperative and Postoperative Tomograms
2010
IEEE Transactions on Biomedical Engineering
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For this study, high resolution preoperative (pre-op) and postoperative (post-op) MR images were acquired for eight in vivo patients, and surface/subsurface shift was identified by manual identification ...
This study demonstrates the accuracy of the proposed framework in predicting full-volume displacements from sparse shift measurements. ...
Most of the visualization algorithms were developed using Visualization Toolkit (http://www.vtk.org). Some segmentation and calculations were performed using Analyze AVW Version 6.0. ...
doi:10.1109/tbme.2009.2039643
pmid:20172796
pmcid:PMC2891363
fatcat:szjjjbjdgnbhvkob4yzdfotoem
Toward a preoperative planning tool for brain tumor resection therapies
2012
International Journal of Computer Assisted Radiology and Surgery
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finite element models of intraoperative shift for 6 cases. ...
Methods In this study, preoperative magnetic resonance images were utilized in conjunction with pre-and post-resection laser range scans of the craniotomy and cortical surface to produce patient-specific ...
The authors wish to thank the participating neurosurgeon RCT and the operating room staff for their time and assistance
Conflict of interest The authors declare that they have no conflict of interest ...
doi:10.1007/s11548-012-0693-6
pmid:22622877
pmcid:PMC3819813
fatcat:3bjwtgu37vbbrkfarxi2hpqmhi
An evaluative tool for preoperative planning of brain tumor resection
2010
Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling
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of brain tumor resection. ...
Displacement-based measures consisting of area classification of the brain surface shifting in the craniotomy region and lateral displacement of the tumor center relative to an approach vector defined ...
ACKNOWLEDGEMENTS We wish to note our appreciation for the support of NIH-National Institute for Neurological Disorders and Stroke-Grant #R01 NS049251-01A1 for making this work possible. ...
doi:10.1117/12.844477
dblp:conf/miigp/CoffeyGMT10
fatcat:hhvnisuq2vgchf2ay4uqbzfikm
Automated Whole Brain Tractography Affects Preoperative Surgical Decision Making
2017
Cureus
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We identified illustrative cases which demonstrated the ability of AWBT to affect surgical decision making. ...
We provide two illustrative cases that show the impact of AWBT on patient outcomes. ...
A temporary deficit was defined as a change in the neurological examination that returned to preoperative baseline within three months. ...
doi:10.7759/cureus.1656
pmid:29147631
pmcid:PMC5673476
fatcat:k6ou45ona5eujfbg5pkcsxsazi
Functional Magnetic Resonance Imaging for Preoperative Planning in Brain Tumour Surgery
2016
Canadian Journal of Neurological Sciences
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Methods: The study is a retrospective chart review investigating the use of clinical fMRI from 2002 through 2013 in the preoperative evaluation of brain tumour patients. ...
Background: Functional magnetic resonance imaging (fMRI) is being increasingly used for the preoperative evaluation of patients with brain tumours. ...
In 1999, one study demonstrated the role of preoperative fMRI in decisionmaking in three key categories: assessment of feasibility of resection, surgical planning, and selection of patients for invasive ...
doi:10.1017/cjn.2016.306
pmid:28004630
fatcat:k6eeh7a55bfulgh64swgman65a
Predictive value of brain edema in preoperative computerized tomography scanning on the recurrence of meningioma
2012
Alexandria Journal of Medicine
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The higher the preoperative brain edema index, the higher the possibility of postoperative complications. Tumors at a maximum diameter of three to less than six cm represented the majority of cases. ...
Aim: The aim of this study is to predict the possibility of meningioma recurrence based on the extent of brain edema in the preoperative computerized scanning of the brain. ...
Three cases in this study did not have preoperative peritumoral brain edema and remained so six months postoperatively. ...
doi:10.1016/j.ajme.2012.06.001
fatcat:4vjxgpgfcvh7je5d47gsi4bt3m
Serial FEM/XFEM-Based Update of Preoperative Brain Images Using Intraoperative MRI
2012
International Journal of Biomedical Imaging
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To overcome this limitation, we present an experimental end-to-end system capable of updating 3D preoperative images in the presence of brain shift and successive resections. ...
The biomechanical model is deformed using FEM or XFEM, depending on the type of deformation under consideration, namely, brain shift or resection. ...
Robe is a research associate of the National Fund for Scientific Research of Belgium. Simon K. Warfield is supported in part by a Translational Research Program Award from Children's Hospital Boston. ...
doi:10.1155/2012/872783
pmid:22287953
pmcid:PMC3263624
fatcat:255tpx6bx5epjn2k6w4a45ey2y
In vivo quantification of a homogeneous brain deformation model for updating preoperative images during surgery
2000
IEEE Transactions on Biomedical Engineering
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Towards this end, we evaluate a three-dimensional finite element consolidation theory model for predicting brain deformation in vivo through a series of controlled repeat-experiments. ...
Index Terms-Brain deformation model, brain shift, consolidation, finite element model, image guidance, intraoperative imaging, porous media, swine. ...
Van Houten of the Thayer School of Engineering for designing the piston apparatus. ...
doi:10.1109/10.821778
pmid:10721634
fatcat:ewo67vwkqjdmtm3ia5gr6kef4e
Preoperative brain injury in newborns with transposition of the great arteries
2004
Annals of Thoracic Surgery
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The objective was to determine the timing and mechanism of brain injury using preoperative and postoperative magnetic resonance imaging (MRI) and three-dimensional MR spectroscopic imaging (MRSI) in newborns ...
Southern Thoracic Surgical Association. Background. ...
MRSI technique: (A) PRESS in a selected volume, typically 150 to 250 cm 3 in the brain with further localization by three-dimensional chemical shift imaging to provide 8 ϫ 8 ϫ 8 arrays of 1 cm 3 spectral ...
doi:10.1016/j.athoracsur.2003.10.084
pmid:15111170
fatcat:kdx5glihcfdsze6sqa3tutfi4q
Clinical significance of preoperative fibre-tracking to preserve the affected pyramidal tracts during resection of brain tumours in patients with preoperative motor weakness
2006
Journal of Neurology, Neurosurgery and Psychiatry
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Objective: To clarify the clinical usefulness of preoperative fibre-tracking in affected pyramidal tracts for intraoperative monitoring during the removal of brain tumours from patients with motor weakness ...
motor function during removal of brain tumours. ...
The tumours included five cases of glioblastoma multiforme, three of anaplastic astrocytoma, one of diffuse astrocytoma and one cavernoma. ...
doi:10.1136/jnnp.2006.099952
pmid:17332053
pmcid:PMC2117707
fatcat:avb4tlvwhzcq5bjotp6lmvkyri
Preoperative Three-Dimensional Model Creation of Magnetic Resonance Brain Images as a Tool to Assist Neurosurgical Planning
2013
Stereotactic and Functional Neurosurgery
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Objectives: In this work, MRI data are used to create affordable patient-specific 3-dimensional (3D) scale models of the brain which clearly indicate the location and extent of a tumour relative to brain ...
However, this distinction is often unclear with the naked eye during the surgical intervention, and it may be difficult to infer depth and an accurate volumetric interpretation from a series of MRI image ...
John Coetzee from the University of Cape Town for his assistance with the 3-dimensional printing; Siemens Medical Solutions South Africa, and the staff at the Cape Universities Brain Imaging Centre. ...
doi:10.1159/000345264
pmid:23446024
fatcat:757rg2oqd5acnlksmknqgi6ezy
3D Rigid Registration of Intraoperative Ultrasound and Preoperative MR Brain Images Based on Hyperechogenic Structures
2012
International Journal of Biomedical Imaging
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The registration of intraoperative ultrasound (US) images with preoperative magnetic resonance (MR) images is a challenging problem due to the difference of information contained in each image modality ...
The proposed validation framework is based on (i) visual assessment, (ii) manual expert estimations , and (iii) a robustness study. ...
Some studies have considered quantitative measurement of brain shift during surgical procedures and showed that nonsignificant displacement occurred before dura opening [32, 33] . ...
doi:10.1155/2012/531319
pmid:22315583
pmcid:PMC3270552
fatcat:6keutkhcuzh45dxbg3clwl2abi
Clinical Use of Diffusion Tensor Image-Merged Functional Neuronavigation for Brain Tumor Surgeries: Review of Preoperative, Intraoperative, and Postoperative Data for 123 Cases
2014
Yonsei medical journal
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However, there are still limitations, including white matter tract shift, during surgery and in DTI itself. Further studies should be conducted to overcome these limitations. ...
We used this fused image for functional neuronavigation during brain tumor surgery of eloquent areas. ...
Therefore, if operators could consider this brain shift effectively, the navigation could be still helpful for determining the surgical trajectory and defining the extent and direction of resection. ...
doi:10.3349/ymj.2014.55.5.1303
pmid:25048489
pmcid:PMC4108816
fatcat:z4vmrlnatre7nolfmza2wvkeje
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