Buchhorn, Gottfried Hans

[["dc.bibliographiccitation.firstpage","525"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Neuroradiology"],["dc.bibliographiccitation.lastpage","529"],["dc.bibliographiccitation.volume","51"],["dc.contributor.author","Ernstberger, Thorsten"],["dc.contributor.author","Buchhorn, Gottfried"],["dc.contributor.author","Heidrich, Gabert"],["dc.date.accessioned","2018-11-07T08:27:28Z"],["dc.date.available","2018-11-07T08:27:28Z"],["dc.date.issued","2009"],["dc.description.abstract","Introduction Intervertebral spacers are made of different materials, which can affect the postfusion magnetic imaging (MRI) scans. Susceptibility artifacts especially for metallic implants can decrease the image quality. This study aimed to determine whether magnesium as a lightweight and biocompatible metal is suitable as a biomaterial for spinal implants based on its MRI artifacting behavior. Materials and methods To compare artifacting behaviors, we implanted into one porcine cadaveric spine different test spacers made of magnesium, titanium, and carbon-fiber-reinforced polymers (CFRP). All test spacers were scanned using two T1-TSE MRI sequences. The artifact dimensions were traced on all scans and statistically analyzed. Results The total artifact volume and median artifact area of the titanium spacers were statistically significantly larger than magnesium spacers (p<0.001), while magnesium and CFRP spacers produced almost identical artifacting behaviors (p>0.05). Conclusion Our results suggest that spinal implants made with magnesium alloys will behave more like CFRP devices in MRI scans. Given its osseoconductive potential as a metal, implant alloys made with magnesium would combine the advantages to the two principal spacer materials currently used but without their limitations, at least in terms of MRI artifacting."],["dc.identifier.doi","10.1007/s00234-009-0537-4"],["dc.identifier.isi","000269013900004"],["dc.identifier.pmid","19468722"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/6176"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/16212"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0028-3940"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Artifacts in spine magnetic resonance imaging due to different intervertebral test spacers: an in vitro evaluation of magnesium versus titanium and carbon-fiber-reinforced polymers as biomaterials"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Irish Journal of Medical Science (1971 -)"],["dc.bibliographiccitation.volume","184"],["dc.contributor.author","Ernstberger, Thorsten"],["dc.contributor.author","Buchhorn, G."],["dc.contributor.author","Heidrich, Gabert"],["dc.date.accessioned","2018-11-07T10:00:11Z"],["dc.date.available","2018-11-07T10:00:11Z"],["dc.date.issued","2015"],["dc.format.extent","263"],["dc.identifier.doi","10.1007/s11845-015-1266-9"],["dc.identifier.isi","000351840900035"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/37745"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.publisher.place","London"],["dc.relation.issn","1863-4362"],["dc.relation.issn","0021-1265"],["dc.title","Magnetic resonance imaging evaluation of intervertebral test spacers: an experimental comparison of magnesium versus titanium and carbon fiber reinforced polymers as biomaterials (Retraction of vol 179, pg 107, 2010)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","244"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","ACTA ORTHOPAEDICA BELGICA"],["dc.bibliographiccitation.lastpage","249"],["dc.bibliographiccitation.volume","73"],["dc.contributor.author","Ernstberger, Thorsten"],["dc.contributor.author","Buchhorn, Gottfried"],["dc.contributor.author","Herbertbaums, Mike"],["dc.contributor.author","Heidrich, Gabert"],["dc.date.accessioned","2018-11-07T11:03:18Z"],["dc.date.available","2018-11-07T11:03:18Z"],["dc.date.issued","2007"],["dc.description.abstract","The purpose of this study was to investigate how different materials affect the magnetic resonance imaging (MRI) detectability of interbody test spacers (ITS). We evaluated the post-implantation MRI scans with T1 TSE sequences for three different ITS made of titanium, carbon fibre-reinforced polymers (CFRP) and titanium-coated CFRP, respectively. The main target variables were total artefact volume (TAV) and median artefact area (MAA). Additionally, implant volume (IV)/TAV and cross section (CS)/MAA ratio were determined. The t test and Newman-Keuls test for multiple comparisons were used for statistical analysis. TAV and MAA did not differ significantly between CFRP and titanium-coated CFRP, but were approximately twice as high for the titanium ITS (p < 0.001). MRI detectability was optimum for CFRP and titanium-coated CFRP, but was limited at the implant-bone interface of the titanium ITS. The material's susceptibility and the implant's dimensions affected MRI artefacting. Based on TAV, the volume of titanium surface coating in the ITS studied has no influence on susceptibility in MRI scans with T1 TSE sequences."],["dc.identifier.isi","000254244600016"],["dc.identifier.pmid","17515239"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/51585"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Acta Medica Belgica"],["dc.relation.issn","0001-6462"],["dc.title","In-vitro MRI detectability of interbody test spacers made of carbon fibre-reinforced polymers, titanium and titanium-coated carbon fibre-reinforced polymers"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","107"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Irish Journal of Medical Science (1971 -)"],["dc.bibliographiccitation.lastpage","111"],["dc.bibliographiccitation.volume","179"],["dc.contributor.author","Ernstberger, Thorsten"],["dc.contributor.author","Buchhorn, G."],["dc.contributor.author","Heidrich, Gabert"],["dc.date.accessioned","2018-11-07T08:45:30Z"],["dc.date.available","2018-11-07T08:45:30Z"],["dc.date.issued","2010"],["dc.description.abstract","Introduction Intervertebral spacers are made of different materials, which can affect the postfusion magnetic resonance imaging (MRI) scans. Susceptibility artifacts, especially for metallic implants, can decrease the image quality. This study aimed to determine whether magnesium as a lightweight and biocompatible metal is suitable as a biomaterial for spinal implants based on its MRI artifacting behavior. Materials and methods To compare artifacting behaviors, we implanted into one porcine cadaveric spine different test spacers made of magnesium, titanium, and CFRP. All test spacers were scanned using two T1-TSE MRI sequences. The artifact dimensions were traced on all scans and statistically analyzed. Results The total artifact volume and median artifact area of the titanium spacers were statistically significantly larger than magnesium spacers (P < 0.001), while magnesium and CFRP spacers produced almost identical artifacting behaviors (P > 0.05). Conclusion Our results suggest that spinal implants made with magnesium alloys will behave more like CFRP devices in MRI scans."],["dc.identifier.doi","10.1007/s11845-009-0394-5"],["dc.identifier.isi","000278579700019"],["dc.identifier.pmid","19693644"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/6826"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/20456"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.publisher.place","London"],["dc.relation.issn","1863-4362"],["dc.relation.issn","0021-1265"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Magnetic resonance imaging evaluation of intervertebral test spacers: an experimental comparison of magnesium versus titanium and carbon fiber reinforced polymers as biomaterials (Retracted article. See vol. 184, pg. 263, 2015)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","360"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","The Spine Journal"],["dc.bibliographiccitation.lastpage","367"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Ernstberger, Thorsten"],["dc.contributor.author","Heidrich, Gabert"],["dc.contributor.author","Dullin, Christian"],["dc.contributor.author","Buchhorn, Gottfried"],["dc.contributor.author","Grabbe, Eckhardt"],["dc.date.accessioned","2018-11-07T11:03:02Z"],["dc.date.available","2018-11-07T11:03:02Z"],["dc.date.issued","2007"],["dc.description.abstract","BACKGROUND CONTEXT: Image quality and implant detectability by conventional imaging methods are suboptimal for perioperative spinal diagnostics, primarily limited by implant-related artifacts. PURPOSE: To evaluate the imaging quality of various intervertebral spacers examined by flat-panel detector-based volumetric computed tomography (FD-VCT) versus magnetic resonance imaging (MRI). STUDY DESIGN/SETTING: A preclinical comparative study on an experimental porcine model. The study was performed at a university research facility. METHODS: Three different intervertebral spacer types (titanium, carbon fiber-reinforced polymer, cobalt-chrome-molybdenum) were implanted in a cadaveric porcine spine and then examined by MRI using T1-weighted spin echo (T1w-SE) and turbo spin echo (T1w-TSE) sequences. Comparative imaging was performed with an experimentally approved FD-VCT prototype featuring two-dimensional and three-dimensional imaging and high isotropic spatial resolution. Data analysis focused on spacer shape, implant positioning, and implant-bone interface. RESULTS: Compared with MRI, and despite the use of T1w-SE and T1w-TSE sequences, the image quality and delectability of all target characteristics were better with FD-VCT absent the usual artifacts. Using its option for implant-specific imaging, the experimental FD-VCT imager allowed reliable determination of additional variables such as dimension and volume. CONCLUSIONS: This experimental study provides initial evidence that FD-VCT produces excellently sharp, high-accuracy, artifact-free imaging quality that is superior to MRI in distinguishing key characteristics of intervertebral implants in a preclinical setting. (c) 2007 Elsevier Inc. All rights reserved."],["dc.identifier.doi","10.1016/j.spinee.2006.03.017"],["dc.identifier.isi","000251490100017"],["dc.identifier.pmid","17482122"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/51527"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.relation.issn","1529-9430"],["dc.title","Preclinical evaluation by flat-panel detector-based volumetric CT versus MRI of intervertebral spacers implanted in a porcine model"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","291"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Clinical Biomechanics"],["dc.bibliographiccitation.lastpage","298"],["dc.bibliographiccitation.volume","23"],["dc.contributor.author","Klinger, Hans-Michael"],["dc.contributor.author","Buchhorn, Gottfried Hans"],["dc.contributor.author","Heidrich, Gabert"],["dc.contributor.author","Kahl, Enrico"],["dc.contributor.author","Baums, Mike Herbert"],["dc.date.accessioned","2018-11-07T11:17:25Z"],["dc.date.available","2018-11-07T11:17:25Z"],["dc.date.issued","2008"],["dc.description.abstract","Background. The optimal method for rotator cuff repair of the shoulder is not yet known. The aim of this study was to compare the time-dependent biomechanical properties of the traditional open transosseous suture technique and modified Mason-Allen stitches (group 1) versus the double-loaded suture anchors technique and so-called arthroscopic Mason-Allen stitches (group 2) in rotator cuff repair. Methods. Eighteen adult female sheep were randomized into two groups: in an open approach in which the released infraspinatus tendon was repaired with group 1, and with group 2. Animals were sacrificed at 6, 12, or 26 weeks; shoulders were harvested and magnetic resonance imaging was performed. Eight untreated contralateral shoulders served as controls. Tendons of 16 additional unpaired cadaver shoulder joints of adult female sheep were identically treated for analysis at time zero. In a biomechanical evaluation all specimens were loaded to failure at a constant displacement rate using a standard universal testing machine. The load-to-failure and stiffness of the healed bone-tendon interface were calculated. Results. Magnetic resonance imaging analysis showed cuff integrity in all cases, and no evidence of foreign body reaction to the anchors. Load-to-failure and stiffness data did not indicate any significant difference between the two treatment groups, neither at 6 weeks nor at 12 or 26 weeks. However, at time zero the group 2 had a higher load-to-failure in comparison to the group 1 (P < 0.010), but there was no difference for the stiffness (P < 0.121). Conclusions. This in vivo study showed that, postoperatively, the group 2 technique provides superior stability and after healing would gain strength comparable to the group I technique. (C) 2007 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.clinbiomech.2007.10.010"],["dc.identifier.isi","000254792800005"],["dc.identifier.pmid","18063457"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/54801"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Sci Ltd"],["dc.relation.issn","0268-0033"],["dc.title","Biomechanical evaluation of rotator cuff repairs in a sheep model: Suture anchors using arthroscopic Mason-Allen stitches compared with transosseous sutures using traditional modified Mason-Allen stitches"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","179"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","European Spine Journal"],["dc.bibliographiccitation.lastpage","185"],["dc.bibliographiccitation.volume","16"],["dc.contributor.author","Ernstberger, Thorsten"],["dc.contributor.author","Heidrich, Gabert"],["dc.contributor.author","Bruening, Thomas"],["dc.contributor.author","Krefft, S."],["dc.contributor.author","Buchhorn, G."],["dc.contributor.author","Klinger, Hans-Michael"],["dc.date.accessioned","2018-11-07T11:05:14Z"],["dc.date.available","2018-11-07T11:05:14Z"],["dc.date.issued","2007"],["dc.description.abstract","Intervertebral spacers for anterior spine fusion are made of different materials, such as titanium, carbon or cobalt-chrome, which can affect the post-fusion MRI scans. Implant-related susceptibility artifacts can decrease the quality of MRI scans, thwarting proper evaluation. This cadaver study aimed to demonstrate the extent that implant-related MRI artifacting affects the post-fusion evaluation of intervertebral spacers. In a cadaveric porcine spine, we evaluated the post-implantation MRI scans of three intervertebral spacers that differed in shape, material, surface qualities and implantation technique. A spacer made of human cortical bone was used as a control. The median sagittal MRI slice was divided into 12 regions of interest (ROI). No significant differences were found on 15 different MRI sequences read independently by an interobserver-validated team of specialists (P > 0.05). Artifact-affected image quality was rated on a score of 0-1-2. A maximum score of 24 points (100%) was possible. Turbo spin echo sequences produced the best scores for all spacers and the control. Only the control achieved a score of 100%. The carbon, titanium and cobalt-chrome spacers scored 83.3, 62.5 and 50%, respectively. Our scoring system allowed us to create an implant-related ranking of MRI scan quality in reference to the control that was independent of artifact dimensions. The carbon spacer had the lowest percentage of susceptibility artifacts. Even with turbo spin echo sequences, the susceptibility artifacts produced by the metallic spacers showed a high degree of variability. Despite optimum sequencing, implant design and material are relevant factors in MRI artifacting."],["dc.identifier.doi","10.1007/s00586-006-0064-5"],["dc.identifier.isi","000244192200003"],["dc.identifier.pmid","16463200"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/52020"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0940-6719"],["dc.title","The interobserver-validated relevance of intervertebral spacer materials in MRI artifacting"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","353"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","The Spine Journal"],["dc.bibliographiccitation.lastpage","359"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Ernstberger, Thorsten"],["dc.contributor.author","Heidrich, Gabert"],["dc.contributor.author","Buchhorn, Gottfried"],["dc.date.accessioned","2018-11-07T11:03:02Z"],["dc.date.available","2018-11-07T11:03:02Z"],["dc.date.issued","2007"],["dc.description.abstract","BACKGROUND CONTEXT: Interbody spacers for anterior spine fusion are made of different materials, which can affect the postfusion magnetic resonance imaging (MRI) scans. Susceptibility artifacts specially for metallic implants can decrease the image quality. PURPOSE: This study focused on the influence of determined implant parameters like shape, implant volume, and implant material in MRI artifacting with regard to solid geometrical titanium and carbon test spacers. STUDY DESIGN/SETTING: A comparative study on an in vitro spine model. The study was performed at a university research facility. METHODS: In this study we evaluated the postimplantation MRI scans of three determined cuboids and six cylinders, which were made of titanium alloy and carbon fiber reinforced polymer. MRI scans were carried out by using T1 turbo spin echo (TSE) sequences. The total artifact volume (TAV) as well as median artifact area (MAA) were calculated. Additionally the implant volume (IV)/TAV and cross-sectional area (CSA)/MAA relation were determined. Statistical analyses were calculated with the t test and Newman-Keuls test for multiple comparisons. RESULTS: Considering all test implants with an increasing implant size, the TAV and the MAA became significantly larger (p <.001) with simultaneous reduction of the IV/TAV and CSA/MAA relation. In contrast to the carbon implant group, for titanium cylinders with an implant volume equivalent to the cuboids significant differences in MRI artifacting (p <.05) could be demonstrated. CONCLUSIONS: Susceptibility artifacts were clearly affected by the implant material, shape, and implant volume. Independent of the implant material, with regard to a more advantageous IV/TAV and CSA/MAA relation, for larger implants the artifact rate was more limited to the implant's direct surroundings. On the basis of a high magnetizability for titanium implants with an equal IV, the range of implant-related susceptibility artifacts was influenced by the material as well as implant shape in favor of cylindric implants. According to the very low MRI artifact rate of carbon implants, the implant shape did not have any significant effect on the artifact behavior. (c) 2007 Elsevier Inc. All rights reserved."],["dc.identifier.doi","10.1016/j.spinee.2006.03.016"],["dc.identifier.isi","000251490100016"],["dc.identifier.pmid","17482121"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/51525"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.relation.issn","1529-9430"],["dc.title","Postimplantation MRI with cylindric and cubic intervertebral test implants: evaluation of implant shape, material, and volume in MRI artifacting - an in vitro study"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","231"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Current Medical Imaging Reviews"],["dc.bibliographiccitation.lastpage","235"],["dc.bibliographiccitation.volume","4"],["dc.contributor.author","Ernstberger, Thorsten"],["dc.contributor.author","Heidrich, Gabert"],["dc.contributor.author","Klinger, Hans Michael"],["dc.contributor.author","Baums, Mike Herbert"],["dc.contributor.author","Buchhorn, Gottfried"],["dc.date.accessioned","2018-11-07T11:09:23Z"],["dc.date.available","2018-11-07T11:09:23Z"],["dc.date.issued","2008"],["dc.description.abstract","Objectives: Interbody spacers for anterior spine fusion are made of different materials, which can affect the post-fusion MRI scans. Susceptibility artifacts specially for metallic implants can decrease the image quality. This study focused on the influence of determined implant parameters like shape and implant volume in MRI artifacting independent from selected MRI-sequences and implant materials. Material and methods: In this study we evaluated the post-implantation MRI scans of 3 determined titanium cuboids and 6 cylinders. MRI scans were carried out by using T1 TSE sequences. The total artifact volume (TAV) of all examined implants was calculated for statistical t-test correlation and implant volume (IV)/TAV-relation. Results: Considering all examined test implants with an increasing implant size the TAV became significantly larger (p<0,001) with simultaneous reduction of the implant artifact relation. Regarding a TAV-correlation for cylinders with an implant volume equivalent to the cuboids significantly differences in MRI artifacting could be demonstrated (p<0,05). Conclusion: Susceptibility artifacts are directly influenced by parameters which determine the implant size and volume. With regard to a more advantageous IV / TAV-relation for larger titanium implants the artifact rate was more limited to the implant's direct surroundings. Significant differences with regard to the TAV could be determined in favor of a cylindric implant shape. The results demonstrated that the artifact rate of our used test implants is influenced by the material volume as well as implant shape."],["dc.identifier.doi","10.2174/157340508786404053"],["dc.identifier.isi","000261892400005"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/52995"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Bentham Science Publ Ltd"],["dc.relation.issn","1573-4056"],["dc.title","Post Fusion MRI Artifacting - An In Vitro Study of Defined Intervertebral Test Spacers"],["dc.type","review"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","496"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Central European Journal of Medicine"],["dc.bibliographiccitation.lastpage","500"],["dc.bibliographiccitation.volume","4"],["dc.contributor.author","Ernstberger, Thorsten"],["dc.contributor.author","Buchhorn, Gottfried"],["dc.contributor.author","Heidrich, Gabert"],["dc.date.accessioned","2018-11-07T11:21:19Z"],["dc.date.available","2018-11-07T11:21:19Z"],["dc.date.issued","2009"],["dc.description.abstract","Intervertebral spacers are made of different materials, which can effect the postfusion magnetic imaging (MRI) scans. Susceptibility artifacts specially for metallic implants can decrease the image quality. This study aimed to determine whether magnesium as a lightweight and biocompatible metal is suitable as a biomaterial for spinal implants based on its MRI artifacting behavior. To compare artifacting behaviors, we implanted into one porcine cadaveric spine different test spacers made of magnesium, titanium and CFRP. All test spacers were scanned using 2 T1-TSE MRI sequences. The artifact dimensions were traced on all scans and statistically analyzed. The total artifact volume and median artifact area of the titanium spacers were statistically significantly larger than magnesium spacers (p < 0.001), while magnesium and CFRP spacers produced almost identical artifacting behaviors (p > 0.05). Our results suggest that spinal implants made with magnesium alloys will behave more like CFRP devices in MRI scans."],["dc.identifier.doi","10.2478/s11536-009-0027-4"],["dc.identifier.isi","000270448700015"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/55747"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Versita"],["dc.relation.issn","1895-1058"],["dc.title","Intervertebral test spacers and postfusion MRI artifacting: A comparative in vitro study of magnesium versus titanium and carbon fiber reinforced polymers as biomaterials"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]