Music-based magnetic resonance fingerprinting to improve patient comfort during MRI examinations.
Music-based magnetic resonance fingerprinting to improve patient comfort during MRI examinations.
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DOI：
10.1002/mrm.25818
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发表时间：
2016-06
影响因子：
3.3
通讯作者：
Griswold MA
中科院分区：
文献类型：
--
作者：
Ma D;Pierre EY;Jiang Y;Schluchter MD;Setsompop K;Gulani V;Griswold MA
令人不愉快的噪音是几乎每次磁共振成像扫描的一个重要缺点。提出了一种通过直接从切换磁场产生音乐声音同时量化多个重要组织特性来减轻噪声问题的方法，而不是降低声学噪声以提高患者舒适度。 MP3 音乐文件被转换为任意编码梯度，然后在 2D 和 3D MRF 检查中使用不同的翻转角度和 TR。这种名为 MRF-Music 的新采集方法用于同时量化 T1、T2 和质子密度图，同时为患者提供悦耳的声音。 MRF-音乐扫描被证明可以显着提高患者在 MRI 扫描过程中的舒适度。从体模测量的 T1 和 T2 值与标准自旋回波测量的值非常一致。脑部扫描的 T1 和 T2 值也接近之前报告的值。与 MRF 扫描和其他快速成像技术（例如 EPI 和 TSE 扫描）相比，MRF 音乐序列显着改善了患者的舒适度。它也是一种同时量化多个弛豫参数的快速、准确的定量方法。
The unpleasant acoustic noise is an important drawback of almost every magnetic resonance imaging scan. Instead of reducing the acoustic noise to improve patient comfort, a method is proposed to mitigate the noise problem by producing musical sounds directly from the switching magnetic fields while simultaneously quantifying multiple important tissue properties. MP3 music files were converted to arbitrary encoding gradients, which were then used with varying flip angles and TRs in both 2D and 3D MRF exam. This new acquisition method named MRF-Music was used to quantify T1, T2 and proton density maps simultaneously while providing pleasing sounds to the patients. The MRF-Music scans were shown to significantly improve the patients' comfort during the MRI scans. The T1 and T2 values measured from phantom are in good agreement with those from the standard spin echo measurements. T1 and T2 values from the brain scan are also close to previously reported values. MRF-Music sequence provides significant improvement of the patient's comfort as compared to the MRF scan and other fast imaging techniques such as EPI and TSE scans. It is also a fast and accurate quantitative method that quantifies multiple relaxation parameter simultaneously.