Effects of interleaf order for spiral MRI of dynamic processes.
نویسندگان
چکیده
The effects of the temporal order in which spiral interleaves are collected are discussed, in the context of artifacts from moving or changing objects. Simulations and in vivo experiments demonstrate the properties of four different ordering methods. Specific applications discussed include cardiac and interventional magnetic resonance imaging, as well as inflow and contrast-enhanced magnetic resonance angiography.
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yellow and gray colors, respectively. The spiral interleaf index is indicated by the number within each block. This shows 4-interleaf case, and 13-interleaf spiral was used in the in-vivo experiments. (a) Temporal ordering of the slice and spiral interleaf. Sliding window reconstruction for (b) slice 1 and (c) slice 2. Frames 1, 2, and 3 in (b) and (c) are simultaneous, for all practical purposes.
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ورودعنوان ژورنال:
- Magnetic resonance in medicine
دوره 41 2 شماره
صفحات -
تاریخ انتشار 1999