Research on High-definition Model of Pelvic MSCT Volume Reconstruction
Adult bone age assessment is an important part of forensic anthropological age assessment,which includes items such as adult living body bone age assessment,unknown cadaver bone age assessment,and ossified cadaver bone age assessment.Traditional assessment methods are mainly applicable to unknown and ossified cadavers.Adult living body age assessment requires extracting high-definition models of pelvic volume reconstruction(VR),and then referring to traditional methods for assessment.The purpose of this study is to explore the necessary conditions for establishing a high-definition model extraction method for pelvic volume reconstruction,which solves the problem of setting parameters for multi-slice spiral CT(MSCT)scanning and reconstruction in the process of pelvic 3D imaging sampling for adult bone age assessment.This study used Precision32(Kaiying Company)MSCT with protocol fixed tube voltage of 120 kV,tube current of 250 mA,pitch of 1.05,layer thickness of 1.1 mm,spacing of 0.8 mm,and matrix 512×512 to scan fresh corpse pelvis,and adjust reconstruction parameters such as filtering,layer thickness,layer spacing,matrix,etc.to compare the clarity of pelvic volume reconstruction images,and select the necessary parameter values.The research results indicate that filtering,layer thickness,layer spacing,matrix,etc.have a significant impact on the clarity of volume reconstruction images.Choosing pelvic filtering,thin layer thickness,short layer spacing,and large matrix can improve the clarity of pelvic VR models.Therefore,under the premise of using scanning parameters such as protocol tube voltage and tube current,it's necessary to choose pelvic filtering,thin layer thickness,short layer spacing,large matrix,etc.to establish a high-definition model for pelvic volume reconstruction.
forensic anthropologybone age identificationvirtual inspectionmulti-slise spiral CT(MSCT)volume reconstruction(VR)
万方数据
维普
