Discussions of Multi-Detector Computed Tomography (MDCT) dose assessment based on information in DICOM images

VernacularTitle:基于DICOM文件信息估算多排螺旋CT剂量方法的探讨
Author: Cuihong YUAN ; Linfeng GAO ; Liangyong QU ; Jianwu NIU ; Huaming ZHANG
Publication Type:Journal Article
Keywords: DICOM; Multi-detector computed tomography (MDCT); Dose assessment
From: Chinese Journal of Radiological Medicine and Protection 2016;36(2):143-148
CountryChina
Language:Chinese
Abstract: Objective To establish an accuracy test method for MDCT dose assessment based on information in DICOM images.Methods The type of MDCT studied in this paper was widely used in clinical practice.A software package developed by java language was used to automatically read doserelated information from DICOM files of MDCT.The CTDIvol and DLP of each pectoral or abdominal scan was calculated based on these information and the basic scan parameters such as collimation,mAs and pitch.The calculated values were compared with the displayed values.Results For pectoral scans,the difference between the calculated and displayed values was between-2％-8％ for CTDIvol,and-2％-5％ for DLP.For abdominal scan,the difference between the calculated and displayed values was 0-2％ for CTDIvol,and-2％-3％ for DLP.Conclusions This method is useful for MDCT dose assessment and is worth disseminating its application for general use.