| Hu Shibei,He Changjiu,Qing Haomiao,Liu Fang,Li Hailie,Xia Qian,Li Deshan,Zhou Peng.Application of automatic tube current modulation combined with iterative reconstruction in CT scanning of neck[J].Chinese Journal of Radiological Medicine and Protection,2017,37(11):875-879 |
| Application of automatic tube current modulation combined with iterative reconstruction in CT scanning of neck |
| Received:May 09, 2017 |
| DOI：10.3760/cma.j.issn.0254-5098.2017.11.015 |
| KeyWords:Neck Radiation dosage Iterative reconstruction ATCM technique |
| FundProject:四川省科技计划项目（2017JY0080） |
| Author Name | Affiliation | E-mail | | Hu Shibei | Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China | | | He Changjiu | Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China | | | Qing Haomiao | Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China | | | Liu Fang | Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China | | | Li Hailie | Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China | | | Xia Qian | Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China | | | Li Deshan | Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China | | | Zhou Peng | Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610041, China | penghyzhou@126.com |
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| Abstract:: |
| Objective To explore application of automatic tube current modulation combined with iterative reconstruction in CT scanning (non-enhanced and enhanced) of neck. Methods A total of 80 patients with CT scanning of neck were randomly divided into test group(n=40, automatic tube current modulation,iterative reconstruction) and control group(n=40,200 mAs, filtered-back-projection reconstruction). Subjective scores and objective evaluation of two groups were evaluated. Evaluation included image noise(SD) of thyroid gland, trapezius muscle, sternocleidomastoid muscle, submandibular gland, lateral pterygoid muscle and brain tissue. Effective dose (E) was compared. Results The E of non-enhanced and enhanced scanning in test group was lower than that of control group with the statistically significant difference(t=-2.451, -2.451, P<0.05). The subjective scores of non-enhanced and enhanced scanning in test group were higher than those of control group with the statistically significant difference (Z=-1.969, -2.056, P<0.05), while SD of thyroid gland, trapezius muscle, sternocleidomastoid muscle, submandibular gland in test group were lower than that of control group with the statistically significant difference(t=2.400,2.516,2.120,2.411,4.134,4.674,2.711,2.892, P<0.05). There were no significant differences in SD of lateral pterygoid muscle, brain tissue of non-enhanced and enhanced scanning between two groups (P>0.05). Conclusions Automatic tube current modulation combined with iterative reconstruction in CT scanning of neck could improve image quality, and reduce effectively radiation dose. |
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