IR@PKUHSC  > 北京大学第一临床医学院  > 放射治疗科
学科主题临床医学
The application of automatic tube current modulation (ATCM) on image quality and radiation dose at abdominal computed tomography (CT): A phantom study
Wang, Qian1,2; Zhao, Xinming1,2; Song, Junfeng1,2; Guo, Ning1,2; Zhu, Ying3; Liu, Jianxin3; Qi, Weiwei4; Wu, Jing4; Liang, Yuan1,2; Feng, Shichao1,2; Hu, Mancang1,2; Zhou, Chunwu1,2; Wang, Xiaoying3; Hong, Nan4
关键词Abdomen phantom MSCT image quality radiation dose
刊名JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY
2013
DOI10.3233/XST-130403
21期:4页:453-464
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Instruments & Instrumentation ; Optics ; Physics, Applied
研究领域[WOS]Instruments & Instrumentation ; Optics ; Physics
关键词[WOS]REDUCTION ; CONTRAST ; ABDOMEN
英文摘要

Multi-phase spiral Computed tomography (CT) of abdomen has been widely used as an effective imaging modality to diagnose variety of diseases. As a result, the accumulated radiation exposure on the abdomen is substantially higher than other human organ regions. According to ALARA (as low as reasonably achievable) principle, how to control radiation dose without compromising imaging quality becomes a research topic of high interest. However, how to achieve dose optimization of the abdomen CT examinations in Chinese patients have not been fully investigated in previous studies. In this study, we develop an abdomen-equivalent tissue model made by well-known CTP579 auxiliary testing model and the real CT data acquired from 68 Chinese male subjects. Combining with catphan600, we simulated the visibility of low and high contrast objects at adult abdomen under variety of x-ray dose levels. Using the automatic tube current modulation (ATCM) technique, we reduced the total radiation dose and identified a proper noise index (NI) for Chinese patients to maintain low or high contrast detectability of abdominal CT image. Our numerical experiments showed that in the phantom study for Chinese patients, when a NI was set at 10, the radiation dose reduced by 34.3% with low contrast objects detectable, while setting NI at 14 the dose level decreased by 65.1% without change the detectability of high contrast targets. The subjective ratings from three radiologists also yielded high consistence with Kappa > 0.75. This study demonstrated the feasibility of performing the CT dose optimization studies through a unique phantom with the ATCM method.

语种英语
WOS记录号WOS:000326747000002
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/59796
专题北京大学第一临床医学院_放射治疗科
北京大学第一临床医学院_医学影像科
北京大学第二临床医学院_放射科
北京大学第二临床医学院_党委院长办公室
作者单位1.Peking Union Med Coll, Dept Diagnost Imaging, Beijing 100021, Peoples R China
2.Chinese Acad Med Sci, Canc Inst & Hosp, Beijing 100021, Peoples R China
3.Peking Univ, Dept Radiol, Hosp 1, Beijing 100871, Peoples R China
4.Peking Univ, Dept Radiol, Peoples Hosp, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714
Wang, Qian,Zhao, Xinming,Song, Junfeng,et al. The application of automatic tube current modulation (ATCM) on image quality and radiation dose at abdominal computed tomography (CT): A phantom study[J]. JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY,2013,21(4):453-464.
APA Wang, Qian.,Zhao, Xinming.,Song, Junfeng.,Guo, Ning.,Zhu, Ying.,...&Hong, Nan.(2013).The application of automatic tube current modulation (ATCM) on image quality and radiation dose at abdominal computed tomography (CT): A phantom study.JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY,21(4),453-464.
MLA Wang, Qian,et al."The application of automatic tube current modulation (ATCM) on image quality and radiation dose at abdominal computed tomography (CT): A phantom study".JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY 21.4(2013):453-464.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Wang, Qian]的文章
[Zhao, Xinming]的文章
[Song, Junfeng]的文章
百度学术
百度学术中相似的文章
[Wang, Qian]的文章
[Zhao, Xinming]的文章
[Song, Junfeng]的文章
必应学术
必应学术中相似的文章
[Wang, Qian]的文章
[Zhao, Xinming]的文章
[Song, Junfeng]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。