Shin-Ting Wu1,2, Wallace Souza Loos3,4, Dayvid Leonardo de Castro Oliveira5, Fernando Cendes5,4, Clarissa L Yasuda5,4, Enrico Ghizoni5,4. 1. School of Electrical and Computer Engineering, University of Campinas, Av. Albert Einstein - 400, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-852, Brazil. ting@dca.fee.unicamp.br. 2. BRAINN - Brazilian Institute of Neuroscience and Neurotechnology, Research, Innovation and Dissemination Centers, Rua Tessália Vieira de Camargo - 126, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-887, Brazil. ting@dca.fee.unicamp.br. 3. School of Electrical and Computer Engineering, University of Campinas, Av. Albert Einstein - 400, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-852, Brazil. 4. BRAINN - Brazilian Institute of Neuroscience and Neurotechnology, Research, Innovation and Dissemination Centers, Rua Tessália Vieira de Camargo - 126, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-887, Brazil. 5. School of Medical Sciences, University of Campinas, Rua Tessália Vieira de Camargo - 126, Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-887, Brazil.
Abstract
PURPOSE: Visualizing a brain in its native space plays an essential role during neurosurgical planning because it allows the superficial cerebral veins and surrounding regions to be preserved. This paper describes the use of a visualization tool in which single gadolinium contrast-enhanced T1-weighted magnetic resonance imaging was applied in nondefective and nonresective skulls to promote visualization of important structures. METHODS: A curvilinear reformatting tool was applied on the supratentorial compartment to peel the tissues to the depth of the dura mater and thereby revealing cortical and vascular spatial relationships. The major advantage of our proposed tool is that it does not require coregistration of anatomical and vascular volumes. RESULTS: The reliability of this technique was supported by comparisons between preoperative images and digital photographs of the brain cortical surface obtained after the dura mater was removed in 20 patients who underwent surgery in the Clinics Hospital of the University of Campinas from January 2017 to April 2018. CONCLUSION: Single fat-suppressed GAD contrast-enhanced T1-weighted magnetic resonance scans provide accurate preoperative 3D views of cortical and vascular relationships similar to neurosurgeons' intraoperative views. In developing countries with limited access to state-of-the-art health technologies, this imaging approach may improve the safety of complex neurosurgeries.
PURPOSE: Visualizing a brain in its native space plays an essential role during neurosurgical planning because it allows the superficial cerebral veins and surrounding regions to be preserved. This paper describes the use of a visualization tool in which single gadolinium contrast-enhanced T1-weighted magnetic resonance imaging was applied in nondefective and nonresective skulls to promote visualization of important structures. METHODS: A curvilinear reformatting tool was applied on the supratentorial compartment to peel the tissues to the depth of the dura mater and thereby revealing cortical and vascular spatial relationships. The major advantage of our proposed tool is that it does not require coregistration of anatomical and vascular volumes. RESULTS: The reliability of this technique was supported by comparisons between preoperative images and digital photographs of the brain cortical surface obtained after the dura mater was removed in 20 patients who underwent surgery in the Clinics Hospital of the University of Campinas from January 2017 to April 2018. CONCLUSION: Single fat-suppressed GAD contrast-enhanced T1-weighted magnetic resonance scans provide accurate preoperative 3D views of cortical and vascular relationships similar to neurosurgeons' intraoperative views. In developing countries with limited access to state-of-the-art health technologies, this imaging approach may improve the safety of complex neurosurgeries.
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