| iDQC MRI weighted by longitudinal relaxation in the rotating frame | |
| Zheng, Bingwen ; Chen, Zhong ; Chen Z(陈忠) ; Kennedy, Scott D. ; Zhong, Jianhui | |
| 2006-07 | |
| 关键词 | MRI iDQC relaxation spin lock rotating frame |
| 英文摘要 | A long-duration, low-power, off-resonance spin-locking pulse was incorporated into the COSY revamped by asymmetric z gradient-echo detection (CRAZED) pulse sequence in order to evaluate the effects of intermolecular double-quantum longitudinal relaxation in the tilted rotating frame (T-1p,DQ(eff)). This modified CRAZED sequence was followed by a standard fast spin-echo imaging sequence to form images with T-1p,DQ(eff)-weighted contrast. Imaging experiments were performed on an agarose-gel phantom and mouse-tail tissue at 600 MHz. Experimental results demonstrated the feasibility of imaging applications based on T-1p,DQ(eff) as a novel contrast mechanism, and showed that iDQC off-resonance longitudinal relaxation in the rotating frame T-1p,DQ(eff) is sensitive to the tilt angle theta and the effective spin-locking field omega(e). Imaging based on T-1p,DQ(eff) has reduced RF power deposition compared to on-resonance spin-locking, which is advantageous for human applications. |
| 语种 | 英语 |
| 出版者 | JOHN WILEY & SONS INC |
| 内容类型 | 期刊论文 |
| 源URL | [http://dx.doi.org/doi: 10.1002/mrm.20954]  |
| 专题 | 化学化工－已发表论文 |
| 推荐引用方式 GB/T 7714 | Zheng, Bingwen,Chen, Zhong,Chen Z,et al. iDQC MRI weighted by longitudinal relaxation in the rotating frame[J],2006. |
| APA | Zheng, Bingwen,Chen, Zhong,陈忠,Kennedy, Scott D.,&Zhong, Jianhui.(2006).iDQC MRI weighted by longitudinal relaxation in the rotating frame.. |
| MLA | Zheng, Bingwen,et al."iDQC MRI weighted by longitudinal relaxation in the rotating frame".(2006). |
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