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Black blood MRI using a stimulated echo pulse sequence with flow sensitization gradients

机译:使用受激回波脉冲序列和血流敏化梯度的黑血MRI

摘要

A black blood magnetic resonance imaging sequence is performed using a magnetic resonance scanner. The sequence includes: applying a first flow sensitization gradient; applying a spoiler gradient after applying the first flow sensitization gradient; applying a second flow sensitization gradient after applying the spoiler gradient wherein the second flow sensitization gradient has area equal to the first flow sensitization gradient but of opposite polarity; applying a slice-selective radio frequency excitation pulse after applying the spoiler gradient; and performing a magnetic resonance readout after applying the second flow sensitization gradient and after applying the slice selective radio frequency excitation. The readout acquires magnetic resonance imaging data having blood signal suppression in the region excited by the slice-selective radio frequency excitation pulse. The magnetic resonance imaging data is suitably reconstructed to generate a black blood image that may be displayed.
机译:使用磁共振扫描仪执行黑血磁共振成像序列。该序列包括:施加第一流量敏化梯度;在应用第一流敏化梯度之后,应用扰流器梯度;在施加扰流板梯度之后,施加第二流敏梯度,其中第二流敏梯度的面积等于第一流敏梯度的面积,但极性相反;在施加扰流器梯度之后施加切片选择射频激励脉冲;在施加第二流敏化梯度之后并且在施加切片选择性射频激励之后,执行磁共振读出。读出获取在由切片选择射频激励脉冲激励的区域中具有血液信号抑制的磁共振成像数据。磁共振成像数据被适当地重建以产生可以显示的黑血图像。

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