Fast MR thermometry using an echo-shifted sequence with simultaneous multi-slice imaging
文献类型：期刊论文
| 作者 | Liu, Xin; Zou, Chao; Qiao, Yangzi; Tie, Changjun; Wan, Qian; Jiang, Rui; Cheng, Chuanli; Liang, Dong; Zheng, Hairong; Li, Faqi |
| 刊名 | MAGNETIC RESONANCE MATERIALS IN PHYSICS BIOLOGY AND MEDICINE
 |
| 出版日期 | 2018 |
| 文献子类 | 期刊论文 |
| 英文摘要 | PurposeReal-time monitoring is important for the safety and effectiveness of high-intensity focused ultrasound (HIFU) therapy. Magnetic resonance imaging is the preferred imaging modality for HIFU monitoring, with its unique capability of temperature imaging. For real-time temperature imaging, higher temporal resolution and larger spatial coverage are needed. In this study, a sequence based on the echo-shifted RF-spoiled gradient echo (GRE) with simultaneous multi-slice (SMS) imaging was designed for fast temperature imaging.MethodsA phantom experiment was conducted to evaluate the accuracy of the echo-shifted sequence using a fluorescent fiber thermometer as reference. The temperature uncertainty of the echo-shifted sequence was compared with the traditional GRE sequence at room temperature through the ex vivo porcine muscle. Finally, the ex vivo porcine liver tissue experiment using HIFU heating was performed to demonstrate that the spatial coverage was increased without decreasing temporal resolution.ResultsThe echo-shifted sequence had a better temperature uncertainty performance compared with the traditional GRE sequence with the same temporal resolution. The ex vivo heating experiment confirmed that by combining the SMS technique and echo-shifted sequence, the spatial coverage was increased without decreasing the temporal resolution while maintaining high temperature measurement precision.ConclusionThe proposed technique was validated as an effective real-time method for monitoring HIFU therapy. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/14364]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 推荐引用方式 GB/T 7714 | Liu, Xin,Zou, Chao,Qiao, Yangzi,et al. Fast MR thermometry using an echo-shifted sequence with simultaneous multi-slice imaging[J]. MAGNETIC RESONANCE MATERIALS IN PHYSICS BIOLOGY AND MEDICINE,2018. |
| APA | Liu, Xin.,Zou, Chao.,Qiao, Yangzi.,Tie, Changjun.,Wan, Qian.,...&Peng, Yuhong.(2018).Fast MR thermometry using an echo-shifted sequence with simultaneous multi-slice imaging.MAGNETIC RESONANCE MATERIALS IN PHYSICS BIOLOGY AND MEDICINE. |
| MLA | Liu, Xin,et al."Fast MR thermometry using an echo-shifted sequence with simultaneous multi-slice imaging".MAGNETIC RESONANCE MATERIALS IN PHYSICS BIOLOGY AND MEDICINE (2018). |
入库方式： OAI收割
来源：深圳先进技术研究院
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