能谱锥形束CT减少口腔金属伪影的效果评价

doi:10.19438/j.cjoms.2018.06.008

中国口腔颌面外科杂志 ›› 2018, Vol. 16 ›› Issue (6): 523-527.doi: 10.19438/j.cjoms.2018.06.008

能谱锥形束CT减少口腔金属伪影的效果评价

高维青¹, 陈毅², 王晶波¹, 樊林峰¹, 赵怀萍², 陶晓峰¹, 奚岩², 朱凌¹

1.上海交通大学医学院附属第九人民医院放射科,上海 200011;
2.上海优医基医疗影像设备有限公司,上海 200135

收稿日期:2018-04-16 出版日期:2018-11-20 发布日期:2019-01-11
通讯作者: 朱凌, E-mail：puxuke12@126.com
作者简介:高维青（1974-）,女,主管技师,E-mail：gaoweiqing1974@sina.com

Evaluation of the dental spectral cone beam CT for metal artifact reduction

GAO Wei-qing¹, CHEN Yi², WANG Jing-bo¹, FAN Lin-feng¹, ZHAO Huai-ping², TAO Xiao-feng¹, XI Yan², ZHU Ling¹

1.Department of Radiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine. Shanghai 200011;
2.Shanghai UEG Medical Imaging Equipment Co., Shanghai 200135, China

Received:2018-04-16 Online:2018-11-20 Published:2019-01-11

摘要/Abstract

摘要： 目的: 评价基于口腔能谱锥形束CT（CBCT）的虚拟单色成像技术在减少金属伪影方面的价值。方法: 选择46例带有口腔金属物的患者,并随机分为A、B 2组,其中A组用口腔能谱CBCT进行成像,B组用传统口腔CBCT进行成像。图像分析指标包括图像的方差（STD）和金属伪影指数（MAI）。所得数据采用SPSS 25.0软件包进行独立样本或配对t检验。结果: 口腔能谱CBCT的虚拟单色图像的MAI值为57.7,低于该设备生成的传统图像的MAI值（81.8）,且具有统计学差异（P<0.05）。此外,口腔能谱CBCT的虚拟单色图像的MAI值（57.7）也低于传统CBCT图像的MAI值（157.1）,且具有统计学差异（P<0.05）。结论: 口腔能谱CBCT的虚拟单色成像技术能有效减少金属伪影。

关键词: 口腔科, 能谱, 锥形束CT, 金属伪影, 虚拟单色成像

Abstract: PURPOSE: To study virtual monochromatic imaging by a recently introduced dental spectral cone beam CT (CBCT) for metal artifact reduction. METHODS: The study included 46 patients with metallic dental materials, they were randomly divided into 2 groups, with one group scanned with spectral CBCT, and another group scanned with traditional CBCT. Standard deviation (STD) and metal artifact index (MAI) were analyzed using independent sample t test or paired t test with SPSS 25.0 software package. RESULTS: Patient study showed that MAI of the virtual monochromatic images by spectral CBCT was significantly lower than that of the traditional images from the same imaging device and patient group (P<0.05). MAI of the virtual monochromatic images by the spectral CBCT was also significantly lower than that of the traditional images by traditional CBCT (P<0.05). CONCLUSIONS: Virtual monochromatic imaging by spectral CBCT reduces metal artifact around dental metallic fillings.

Key words: Dentistry, Spectrum, Cone-beam CT, Metal artifact, Virtual monochromatic imaging

中图分类号:

R816.98

高维青, 陈毅, 王晶波, 樊林峰, 赵怀萍, 陶晓峰, 奚岩, 朱凌. 能谱锥形束CT减少口腔金属伪影的效果评价[J]. 中国口腔颌面外科杂志, 2018, 16(6): 523-527.

GAO Wei-qing, CHEN Yi, WANG Jing-bo, FAN Lin-feng, ZHAO Huai-ping, TAO Xiao-feng, XI Yan, ZHU Ling. Evaluation of the dental spectral cone beam CT for metal artifact reduction[J]. China J Oral Maxillofac Surg, 2018, 16(6): 523-527.

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能谱锥形束CT减少口腔金属伪影的效果评价

Evaluation of the dental spectral cone beam CT for metal artifact reduction

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