Börnert P, Jensen D
Philips GmbH Forschungslaboratorien, Abteilung Technische Systeme, Hamburg, Germany.
Magn Reson Imaging. 1994;12(7):1033-8. doi: 10.1016/0730-725x(94)91234-n.
Echo planar imaging (EPI) was extended for the acquisition of both, the spin-echo (SE) and the stimulated echo in a stimulated echo sequence after one excitation from thermal equilibrium. The two independent EPI images reflect different states of the transverse magnetization excited and measured almost simultaneously. This single-shot-double-echo EPI approach offers a variety of useful applications such as varying image contrast, obtaining flow or diffusion information, improving image resolution or circumventing T*2 requirements in single shot EPI. Benefits and limits of this technique are discussed.
回波平面成像（EPI）得到扩展，用于在一次从热平衡激发后的受激回波序列中采集自旋回波（SE）和受激回波。这两个独立的EPI图像反映了几乎同时被激发和测量的横向磁化的不同状态。这种单次双回波EPI方法提供了多种有用的应用，如改变图像对比度、获取血流或扩散信息、提高图像分辨率或规避单次EPI中的T*2要求。本文讨论了该技术的优点和局限性。
