The Choice Of The Best Image Post-processing Of Multi-slice CT In Observing Nasal Bone Fine Structure

Objective:Using the advanced multi-slice CT,to oberserve the featrues of formation, distribution,relationship,variation of nasal bone fine structure,and investigate the best parameters and methods of image post-processing of multi-slice CT in oberserving nasal bone fine structure. On the above reserch,explore th points of differential diagnosis between nasal bone fine strcture and nasal bone fracture.Methods:Firstly one hundred patients(aged from 10 to 73 )were selected to accept the routine scan by siemens 16 slices CT,who were not suffered with nasal bone fracture.Then raw data was sent to Wisard Workplace,with the post-processing software,it was processed to 2Dand 3D image.Seconly,oberserving the featrues of formation,distribution, relationship,variation of nasal bone fine structure,and scores the quality of post-processing image, Then analyst the score of several parameters and methods of CT image post-processing.At last, according to oberserve to 35 nasal bone fracture cases,study the points of differential diagnosis between nasal bone fine structure and nasal bone fracture.Result:1 Nasal bone fine structure includs:nasofrontal suture,nasomaxillary suture,nasal bone suture,nasal bone foramina and nasal bone lower edge.Their structure is complicated,their indivisual difference is significant,their comman characteristics of Imaging is natral fluent structure,symmetric shape, unacumintious edge.2 With reconstruction thickness 0.75mm,reconstructin interval 50%,kernel BT0s,the quality of post-processing image is good.3 Using the selected parameters,differrence of the image quality between MIP and MPR is not significant.Image quality of INSPACE is better than the VRT's.Conclusion:CT image post-processing can provide ample information,and may be an assistant for MSCT in diagnosis of nasal bone fracture.