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Magnetic resonance imaging (MRI) systems and methods using adiabatic tip-down and matched adiabatic flip-back pulses

机译:使用绝热降压和匹配的绝热翻转脉冲的磁共振成像(MRI)系统和方法

摘要

Magnetic resonance imaging (MRI) systems and methods using adiabatic tip-down and matched adiabatic flip-back pulses are disclosed. According to an aspect, a system includes a signal generator configured to generate a pulse sequence for on-resonance magnetization transfer preparation. The pulse sequence includes an adiabatic tip-down pulse and a matched adiabatic flip-back pulse for separating spins in a mobile spin pool from spins in a bound spin pool of an anatomical region of interest for imaging. The system includes radio frequency (RF) coils configured to transmit RF pulses in response to the pulse sequence and to acquire RF data in response to transmission of the RF pulses. Further, the system includes a processing system configured to process the RF data to provide a display image indicating different tissue types with discrimination.
机译:公开了使用绝热尖端向下和匹配的绝热翻转脉冲的磁共振成像(MRI)系统和方法。根据一个方面,一种系统包括信号发生器,该信号发生器被配置为产生用于共振磁化传递准备的脉冲序列。脉冲序列包括绝热的向下倾斜脉冲和匹配的绝热后退脉冲,用于将移动自旋池中的自旋与感兴趣的解剖区域的结合自旋池中的自旋分离以进行成像。该系统包括射频(RF)线圈,该射频(RF)线圈被配置为响应于脉冲序列而发送RF脉冲并且响应于RF脉冲的发送而获取RF数据。此外,该系统包括处理系统,该处理系统被配置为处理RF数据以提供指示图像以区别地指示不同组织类型的显示图像。

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