启用SENSE加速的2D CSI,用于高极化碳-13成像.
Ayaka Shinozaki1,2, Juan D Sanchez-Heredia3, Markus P Andersen4
1Oxford Centre for Clinical Magnetic Resonance Research, University of Oxford, Oxford, UK.
Scientific reports
|September 4, 2024
概括
这项研究使用2D CSI与SENSE重建和 (Na) 地图加速超极化 (HP) 碳-13 (C) MRI. 这种方法实现了四倍的加速,可以更快地进行代谢成像.
科学领域:
- 医疗成像医学成像
- 生物物理学的生物物理.
- 磁共振成像技术 磁共振成像技术
背景情况:
- 超极化 (HP) 碳-13 (C) 代谢成像的临床翻译需要更快,更强大的技术.
- 在不影响空间或光谱分辨率的情况下,在HP13CMRI中实现高时间分辨率是具有挑战性的.
研究的目的:
- 为了加速HP13CMRI,使用二维化学转移成像 (CSI) 结合潜在下样本和SENSitivity Encoding (SENSE) 重建.
- 为了证明使用 (Na) 灵敏度图用于C CSI的SENSE重建的可行性,克服低C丰度的挑战.
主要方法:
- 结合2D CSI与前性低采样和SENSE重建.
- 使用预先获得的 (Na) 灵敏度图来SENSE重建C CSI.
- 在幻影研究和猪脏的体内实验中验证了该技术.
主要成果:
- 在HP13CMRI中实现了四倍的加速,使用23Na灵敏度图进行SENSE重建.
- 获得了高时间分辨率的脏光谱,显示了详细的代谢到来和衰变曲线.
- 在猪中生成了代谢比率图,证明了重复代谢测量的潜力.
结论:
- 开发的方法为HP13CMRI提供了一个强大的和加速的方法.
- 这种技术增强了代谢信号的捕获,有助于代谢物动态建模和消毒.
- 它简化了全面的代谢评估,即使有有限的HP MRI专业知识或未知的光谱.
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