| Zhang Lin,Zhu Jianguo,Liu Changcai,Song Gang,Liu Wei,Li Yusheng,Liu Fang,Chen Yue,Bian Huahui,Liu Yulong.Estimation of effective dose to examined adult patients during digital tomosynthesis[J].Chinese Journal of Radiological Medicine and Protection,2018,38(6):451-455 |
| Estimation of effective dose to examined adult patients during digital tomosynthesis |
| Received:October 13, 2017 |
| DOI：10.3760/cma.j.issn.0254-5098.2018.06.011 |
| KeyWords:Digital Tomosynthesis Phantom Tissue weighting factor Effective dose |
| FundProject:山东省医药卫生科技发展计划项目（2013WS0361） |
| Author Name | Affiliation | E-mail | | Zhang Lin | Institute of Radiation Medicine, Shandong Academy of Medical Science, Jinan 250062, China | | | Zhu Jianguo | Institute of Radiation Medicine, Shandong Academy of Medical Science, Jinan 250062, China | | | Liu Changcai | Institute of Radiation Medicine, Shandong Academy of Medical Science, Jinan 250062, China | 1453854260@qq.com | | Song Gang | Institute of Radiation Medicine, Shandong Academy of Medical Science, Jinan 250062, China | | | Liu Wei | Institute of Radiation Medicine, Shandong Academy of Medical Science, Jinan 250062, China | | | Li Yusheng | Clinic Department of Women and Children's Health Care Hospital of Linyi, Linyi 276000, China | | | Liu Fang | Institute of Radiation Medicine, Shandong Academy of Medical Science, Jinan 250062, China | | | Chen Yue | Institute of Radiation Medicine, Shandong Academy of Medical Science, Jinan 250062, China | | | Bian Huahui | Department of Nuclear Emergency Center, Second Affiliated Hospital of Soochow University, Suzhou 215004, China | | | Liu Yulong | Department of Nuclear Emergency Center, Second Affiliated Hospital of Soochow University, Suzhou 215004, China | |
|
| Hits: 3017 |
| Download times: 1351 |
| Abstract:: |
| Objective To estimate the absorbed dose and effective dose to the examined adult patients during digital tomosynthesis and to provide reference data for radiation dosimetry. Methods The phantom experiments were grouped according to the examined site (main beam scanned site), and the data displayed in real time during digital tomosynthesis are used as conditions for the phantom experiments. The effective doses to the examined patients were estimated on the basis of phantom scanning and tissue-absorbed dose calculation. Results During digital tomosynthesis, the effective doses to the examined patients of various groups were 0.524 mSv for head, 0.736 mSv for cervical spine, 2.719 mSv for thoracic vertebra, 1.810 mSv for chest, 1.240 mSv for lumbar spine, 2.317 mSv for abdomen and 2.316 mSv for pelvis, respectively. Conclusions During digital tomography, the highest value of effective doses was estimated to be 2.719 mSv in thoracic vertebra group, followed by abdominal group 2.317 mSv and pelvic group 2.316 mS, with the lowest 0.524 mSv in head group. The main factors influencing the effective dose include tube voltage, total mAs, irradiation field size, main beam irradiation range, and the number of tissues or organs in scanned range. |
| HTML View Full Text View/Add Comment Download reader |
| Close |
|
|
|
