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学科主题: 临床医学
题名:
Spectral CT in the demonstration of the gastrocolic ligament: a comparison study
作者: Tang, Lei1; Zhang, Xiao-Peng1,2; Sun, Ying-Shi1; Li, Yan-Ling1; Li, Xiao-Ting1; Cui, Yong1; Gao, Shun-Yu1
关键词: Tomography, X-ray computed ; Spectral CT ; Gastrocolic ligament ; Monochromatic image ; Polychromatic image
刊名: SURGICAL AND RADIOLOGIC ANATOMY
发表日期: 2013-08-01
DOI: 10.1007/s00276-012-1056-2
卷: 35, 期:6, 页:539-545
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Anatomy & Morphology ; Radiology, Nuclear Medicine & Medical Imaging ; Surgery
研究领域[WOS]: Anatomy & Morphology ; Radiology, Nuclear Medicine & Medical Imaging ; Surgery
关键词[WOS]: GREATER OMENTUM ; COMPUTED-TOMOGRAPHY ; ANATOMY ; LESSER ; TUMORS
英文摘要:

To investigate the performance of spectral CT in the depiction of the gastrocolic ligament (GCL) compared to conventional polychromatic CT.

Gemstone spectral CT and conventionally polychromatic CT examinations were randomly allocated to be performed on 62 consecutive patients. A total of 11 groups of monochromatic images were generated on energy levels ranging from 40 to 140 keV at an interval of 10 keV. A five-score classification system was used to evaluate the performances of CT images in the demonstration of GCL. The inter-observer agreement between two radiologists in their evaluation of the GCL by each method was evaluated using kappa statistics.

There were statistically significant differences between the spectral CT and polychromatic CT in their abilities to highlight the GCL (observer 1: chi(2) = 18.310, P < 0.001; observer 2: chi(2) = 19.780, P < 0.001). The distinct display (score a parts per thousand yen 3) rates of the GCL by integrated monochromatic images were higher than that of polychromatic images (P < 0.001). The best energy level for displaying the GCL by spectral CT was 50-70 keV. The kappa value for the image scores on the integrated keV images between the two radiologists was higher than that for polychromatic CT images (P < 0.01).

Spectral CT can improve the visualisation of the GCL compared to polychromatic CT.

语种: 英语
所属项目编号: 2011CB707705 ; 81201215 ; 81071129
项目资助者: National Basic Research Program of China (973 Program) ; National Natural Science Foundation of China
WOS记录号: WOS:000322121100014
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/66093
Appears in Collections:北京大学临床肿瘤学院_期刊论文

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作者单位: 1.Peking Univ, Canc Hosp & Inst, Key Lab Carcinogenesis & Translat Res, Dept Radiol,Minist Educ, Beijing 100142, Peoples R China
2.Peking Univ, Canc Hosp & Inst, Dept Radiol, Beijing 100142, Peoples R China

Recommended Citation:
Tang, Lei,Zhang, Xiao-Peng,Sun, Ying-Shi,et al. Spectral CT in the demonstration of the gastrocolic ligament: a comparison study[J]. SURGICAL AND RADIOLOGIC ANATOMY,2013,35(6):539-545.
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