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| 4种常用口腔金属材料MRI伪影对比研究 | |
| 引用本文： | 斯琴高娃,迪丽努尔·阿吉,王星,廖博,齐鲁,帕孜丽娅·吐达洪,比沙拉·叶尔努尔. 4种常用口腔金属材料MRI伪影对比研究[J]. 口腔医学研究, 2016, 32(8): 812. DOI: 10.13701/j.cnki.kqyxyj.2016.08.009 |
| 作者姓名： | 斯琴高娃 迪丽努尔·阿吉 王星 廖博 齐鲁 帕孜丽娅·吐达洪 比沙拉·叶尔努尔 |
| 作者单位： | 1. 新疆医科大学研究生学院第一临床医学院 新疆 乌鲁木齐 830054;2. 新疆医科大学第一附属医院口腔修复科 新疆 乌鲁木齐 830054;3. 新疆医科大学第二附属医院口腔科 新疆 乌鲁木齐 830000 |
| 基金项目： | 国家自然科学基金青年基金项目(编号:2015211C111) |
| 摘 要： | 目的:比较4种不同口腔金属材料在MRI检查中伪影大小。方法:在标准备牙模型上制作钴铬合金、纯钛、银钯、金钯金属全冠实验组以及二氧化锆全瓷冠对照组,并用25 cm×13 cm×10 cm(长×宽×高)塑料容器蒸馏水包埋后放置于1.5T自旋回波序列T2加权像比较伪影大小。结果:不同金属在同一自旋回波序列中产生伪影大小不同,钴铬合金、纯钛、银钯金属冠的伪影分别为(450±665)、(343±322)、(141±186) mm2,3组间两两比较均存在差异(P＜0.05),金钯金属冠与对照组二氧化锆相比伪影大小未见明显差异。结论:4种金属MRI检查中伪影的大小钴铬合金＞纯钛＞银钯合金＞金钯合金。 |
| 关 键 词： | 口腔材料 金属 伪影 MRI |
| 收稿时间： | 2016-03-07 |
MRI Artifacts of Four Commonly Used Dental Metal Materials: A Comparative Study |
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| Si Qin-gaowa,Dilinuer·AJi,Wang Xing,Liao Bo,Qi Lu,Paziliya·Tu Da-hong,Bishala·Ye Er-nuer. MRI Artifacts of Four Commonly Used Dental Metal Materials: A Comparative Study[J]. Journal of Oral Science Research, 2016, 32(8): 812. DOI: 10.13701/j.cnki.kqyxyj.2016.08.009 | |
| Authors: | Si Qin-gaowa Dilinuer·AJi Wang Xing Liao Bo Qi Lu Paziliya·Tu Da-hong Bishala·Ye Er-nuer |
| Affiliation: | 1. The First Clinical Medical College, Xinjiang Medical University. Urumqi 830054, China;2. Department of Prosthodontics, The First Affiliated Hospital of Xinjiang Medical University. Urumqi 830054, China;3.Department of Stomatology, The Second Affiliated Hospital of Xinjiang Medical University. Urumqi 830000, China |
| Abstract: | Objective: To compare the MRI artifacts of four different dental metal materials, providing clinical evidence for prosthodontic doctors. Methods: Full crowns of Co-Cr alloy, pure titanium, silver palladium, and gold palladium were made according to a standard model.Full crown of zirconium dioxide was taken as control. All crowns were embedded in a 13cm × 25cm×10 cm (length x width x height) plastic container filled with distilled water.Artifacts were compared on the T2-weighted images in 1.5 T spin echo sequences. Results: Different materials showed different artifacts in the same spin echo sequence.Artifacts of Co-Cr alloy, pure titanium, silver palladium crownswere (450±665), (343±322), (141±141) respectively. There were significant differences between them (P<0.05). There was no significant difference between gold palladium group and zirconium dioxide group. Conclusion: MRI artifacts of the four materials in descending order were as follows: Co-Cr＞pure titanium＞silver palladium＞gold palladium. |
| Keywords: | Oral materials Metal Artifacts MRI |
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