| Yuan Cuihong,Gao Linfeng,Qu Liangyong,Niu Jianwu,Zhang Huaming.Discussions of Multi-Detector Computed Tomography (MDCT) dose assessment based on information in DICOM images[J].Chinese Journal of Radiological Medicine and Protection,2016,36(2):143-148 |
| Discussions of Multi-Detector Computed Tomography (MDCT) dose assessment based on information in DICOM images |
| Received:March 07, 2015 |
| DOI：10.3760/cma.j.issn.0254-5098.2016.02.013 |
| KeyWords:DICOM Multi-detector computed tomography (MDCT) Dose assessment |
| FundProject:国家自然科学基金(11175122) |
| Author Name | Affiliation | E-mail | | Yuan Cuihong | Department of Radiology, Shanghai Zhongye Hospital, Shanghai 200941, China | | | Gao Linfeng | Department of Radiation Protection, Shanghai Municipal Center for Disease Control & Prevention, Shanghai 200336, China | gaolinfeng@scdc.sh.cn | | Qu Liangyong | Department of Radiology, Shanghai Zhongye Hospital, Shanghai 200941, China | | | Niu Jianwu | Department of Radiology, Shanghai Zhongye Hospital, Shanghai 200941, China | | | Zhang Huaming | Department of Radiology, Shanghai Zhongye Hospital, Shanghai 200941, China | |
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| 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 dose-related 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. |
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