Minimization of Volumetric Errors in CAD Medical Models Using 64 Slice Spiral CT Scanner

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dc.creatorKrishnanand, L.
dc.creatorManmadhachary, A.
dc.creatorRavi Kumar, Y.
dc.date.accessioned2021-10-18T20:58:05Z
dc.date.available2021-10-18T20:58:05Z
dc.date.issued2014
dc.description.abstractSixty four slice spiral Computed Tomography (CT) scanner is one of the advanced CT scanners to capture the large volume of tissues and improved longitudinal resolution. The CT images are used to develop a 3-Dimensional (3D) Computer Aided Design (CAD) medical model. While developing a 3D CAD medical model volumetric errors occur due to partial volume or volume averaging effect. In order to study, various CT image construction parameters were considered to minimize the volumetric errors in 3D CAD medical models, a human dry mandible has been selected as a phantom. A Taguchi technique was used to find optimal CT image construction parameters. A L9 orthogonal array was used to optimize the CT image construction parameters constituting slice thickness, slice increment and Field of View (FOV) while performing CT image construction. The resultant optimal parameters are scrutinized using analysis of variance (ANOVA) method for its influence on the CT image construction. In this work, it has been found that there is a volumetric error of a 3D CAD medical model (STL file) from CT images of a dry mandible was 1978 mm3 (6.11%).en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/89244
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2014 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectCTen_US
dc.subjectpartial volume effecten_US
dc.subjectvolumetric erroren_US
dc.subjectCT image constructionen_US
dc.subjectANOVAen_US
dc.titleMinimization of Volumetric Errors in CAD Medical Models Using 64 Slice Spiral CT Scanneren_US
dc.typeConference paperen_US

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2014 International Solid Freeform Fabrication Symposium