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3D time-of-flight (TOF) can be used to acquire a volume with high spatial resolution, making it a preferable choice for depicting smaller vascular structures. However, 3D TOF requires long acquisition times when acquiring multiple slabs and covering a large field of view, especially for high spatial resolution imaging. To accelerate acquisition and to improve image quality of TOF MRA, we developed an accelerated 3D intracranial TOF MRA sequence with wave-encoding (referred to as 3D wave-TOF) and evaluated two variants – wave-CAIPI and compressed-sensing wave (CS-wave).
Ji et al. (Wed,) studied this question.