| 钛合金植入物在1.5T场强下不同序列参数伪影大小探讨 |
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| 引用本文： | 王传兵,邹月芬,胡志毅,吕 征,李大鹏,储 彬.钛合金植入物在1.5T场强下不同序列参数伪影大小探讨[J].南京医科大学学报,2013(11):1600-1603. |
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| 作者姓名： | 王传兵 邹月芬 胡志毅 吕 征 李大鹏 储 彬 |
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| 作者单位： | 南京医科大学第一附属医院放射科,江苏 南京 210029;南京医科大学第一附属医院放射科,江苏 南京 210029;南京医科大学第一附属医院骨科,江苏 南京 210029;南京医科大学第一附属医院骨科,江苏 南京 210029;南京医科大学第一附属医院放射科,江苏 南京 210029;南京医科大学第一附属医院放射科,江苏 南京 210029 |
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| 基金项目： | 江苏高校优势学科建设工程资助(jx10231801) |
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| 摘 要： | 目的:比较不同扫描序列导致钛合金植入物伪影的差别;优化扫描参数以期达到高质量扫描图像?方法:制作钛合金水模,进行常规序列扫描以及在sagT2-FSE序列下改变扫描视野?回波链长?带宽等参数观察伪影变化?结果:扫描序列不同,产生的伪影大小不同;扫描视野减小?回波链长缩短以及带宽增加,伪影减小?结论:改变扫描序列?扫描参数可以减少金属植入物带来的伪影,提高图像质量,有助临床诊断?
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| 关 键 词： | 金属植入物 金属伪影 MR成像 |
| 收稿时间： | 2013/5/17 0:00:00 |
Evaluation of the size of artifacts under 1.5T MRI different sequence parameters caused by titanium alloy implants |
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| Wang Chuanbing,Zou Yuefen,Hu Zhiyi,Lv Zheng,Li Dapeng and Chu Bing.Evaluation of the size of artifacts under 1.5T MRI different sequence parameters caused by titanium alloy implants[J].Acta Universitatis Medicinalis Nanjing,2013(11):1600-1603. |
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| Authors: | Wang Chuanbing Zou Yuefen Hu Zhiyi Lv Zheng Li Dapeng and Chu Bing |
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| Institution: | Department of Radiology,the First Affiliated Hospital of NJMU,Nanjing 210029,China;Department of Radiology,the First Affiliated Hospital of NJMU,Nanjing 210029,China;Department of Orthopedics,the First Affiliated Hospital of NJMU,Nanjing 210029,China;Department of Orthopedics,the First Affiliated Hospital of NJMU,Nanjing 210029,China;Department of Radiology,the First Affiliated Hospital of NJMU,Nanjing 210029,China;Department of Radiology,the First Affiliated Hospital of NJMU,Nanjing 210029,China |
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| Abstract: | Objective:To compare the variation of titanium implant artifacts in different sequences and optimize scanning parameters for high-quality images. Methods:Titanium water phantom was designed for routine sequences and those with optimized parameters scanning;the variation of artifacts was observed with altering field of view,echo train length,bandwidth in sagT2-FSE sequence. Results:Artifacts were changed under different sequences. The reduction of field of view,the decrease of echo train length and bandwidth reduced the artifacts. Conclusion:Change of the scan sequence or scan parameters could reduce artifacts caused by metal implants,improve image quality,and benefit clinical diagnosis. |
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| Keywords: | metallic implants metallic artifacts MRI |
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