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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Zhou, J.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (38/38 displayed)
- 2024Revisiting the use of the EORTC QLQ-STO22 to assess health-related quality of life of patients with gastric cancer: incorporating updated treatment options and cross-cultural perspectives
- 2023Biomechanical evaluation of additively manufactured patient-specific mandibular cage implants designed with a semi-automated workflow: A cadaveric and retrospective case studycitations
- 2023Extrusion-based 3D printing of biodegradable, osteogenic, paramagnetic, and porous FeMn-akermanite bone substitutescitations
- 2023Biomechanical evaluation of additively manufactured patient-specific mandibular cage implants designed with a semi-automated workflow:A cadaveric and retrospective case studycitations
- 2022Microstructural basis for improved corrosion resistance and mechanical properties of fabricated ultra-fine grained Mg-Akermanite compositescitations
- 2022Extrusion-based additive manufacturing of Mg-Zn alloy scaffoldscitations
- 2022A component method to delineate surgical spine implants for proton Monte Carlo dose calculation.citations
- 2022Extrusion-based additive manufacturing of Mg-Zn/bioceramic composite scaffoldscitations
- 2022Additive manufacturing of bioactive and biodegradable porous iron-akermanite composites for bone regenerationcitations
- 2021Application of the Photon Doppler Velocimetry (PDV) technique in tension-torsion Hopkinson bar experimentscitations
- 2021Composites of ion-in-conjugation polysquaraine and SWCNTs for the detection of H2S and NH3 at ppb concentrations
- 2021An experimental and theoretical investigation of the effect of second-phase particles on grain growth during the annealing of hot-rolled AZ61 magnesium alloycitations
- 2021Simulation of deformation and fracture initiation during equal channel angular pressing of AZ31 magnesium alloy with covered tube casingcitations
- 2021Corrosion resistance and tribological behavior of ZK30 magnesium alloy coated by plasma electrolytic oxidationcitations
- 2021A novel approach to determine residual stress field during FSW of AZ91 Mg alloy using combined smoothed particle hydrodynamics/neuro-fuzzy computations and ultrasonic testingcitations
- 2021Applying multi-pass friction stir processing to refine the microstructure and enhance the strength, ductility and corrosion resistance of WE43 magnesium alloycitations
- 2021The effect of addition of hardystonite on the strength, ductility and corrosion resistance of WE43 magnesium alloycitations
- 2019Electrophoretic deposition of gelatine nanoparticle/chitosan coatingscitations
- 2019Modification of in vitro degradation behavior of pure iron with ultrasonication treatment: Comparison of two different pseudo-physiological solutionscitations
- 2019A new technique for tensile testing of engineering materials and composites at high strain ratescitations
- 2018A novel local drug delivery system: Superhydrophobic titanium oxide nanotube arrays serve as the drug reservoir and ultrasonication functions as the drug release triggercitations
- 2018Biodegradation and mechanical behavior of an advanced bioceramic-containing Mg matrix composite synthesized through in-situ solid-state oxidationcitations
- 2018Biodegradable nanostructures: Degradation process and biocompatibility of iron oxide nanostructured arrayscitations
- 2017Advanced bredigite-containing magnesium-matrix composites for biodegradable bone implant applicationscitations
- 2017Improvement of mechanical properties of AA6063 aluminum alloy after equal channel angular pressing by applying a two-stage solution treatmentcitations
- 2017The high velocity impact resistance of fibre metal laminates
- 2016Accelerated Degradation Behavior and Cytocompatibility of Pure Iron Treated with Sandblastingcitations
- 2014Characterization and development of materials for an integrated high-temperature sensor using resistive test structurescitations
- 2013Reliable inkjet-printed interconnections on foil-type Li-Ion Batteriescitations
- 2010Fabrication of a Prototype All‐Dielectric Micro‐Acceleratorcitations
- 2010In vitro degradation behavior and cytocompatibility of Mg–Zn–Zr alloyscitations
- 2010Engineered cementitious composites with low volume of cementitious materials
- 2009Correlation between Electrical Resistivity, Particle Dissolution, Precipitation of Dispersoids, and Recrystallization Behavior of AA7020 Aluminum Alloy
- 2009Evolution of Grain Boundary Phases during the Homogenization of AA7020 Aluminum Alloycitations
- 2009Porosity and permeability of mortar specimens incorporating PEO <inf>113</inf>-b-PS<inf>2l8</inf> micelles
- 2009Self-healing cementitious composites under bending loads
- 2008Strain-dependent constitutive analysis of three wrought Mg–Al–Zn alloys
- 2004High energy density strategies:From hydride-forming materials research to battery integrationcitations
Places of action
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article
A component method to delineate surgical spine implants for proton Monte Carlo dose calculation.
Abstract
<h4>Purpose</h4>Metallic implants have been correlated to local control failure for spinal sarcoma and chordoma patients due to the uncertainty of implant delineation from computed tomography (CT). Such uncertainty can compromise the proton Monte Carlo dose calculation (MCDC) accuracy. A component method is proposed to determine the dimension and volume of the implants from CT images.<h4>Methods</h4>The proposed component method leverages the knowledge of surgical implants from medical supply vendors to predefine accurate contours for each implant component, including tulips, screw bodies, lockers, and rods. A retrospective patient study was conducted to demonstrate the feasibility of the method. The reference implant materials and samples were collected from patient medical records and vendors, Medtronic and NuVasive. Additional CT images with extensive features, such as extended Hounsfield units and various reconstruction diameters, were used to quantify the uncertainty of implant contours.<h4>Results</h4>For in vivo patient implant estimation, the reference and the component method differences were 0.35, 0.17, and 0.04 cm<sup>3</sup> for tulips, screw bodies, and rods, respectively. The discrepancies by a conventional threshold method were 5.46, 0.76, and 0.05 cm<sup>3</sup> , respectively. The mischaracterization of implant materials and dimensions can underdose the clinical target volume coverage by 20 cm<sup>3</sup> for a patient with eight lumbar implants. The tulip dominates the dosimetry uncertainty as it can be made from titanium or cobalt-chromium alloys by different vendors.<h4>Conclusions</h4>A component method was developed and demonstrated using phantom and patient studies with implants. The proposed method provides more accurate implant characterization for proton MCDC and can potentially enhance the treatment quality for proton therapy. The current proof-of-concept study is limited to the implant characterization for lumbar spine. Future investigations could be extended to cervical spine and dental implants for head-and-neck patients where tight margins are required to spare organs at risk.