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- W2079775669 abstract "Abstract Velocity imaging with phase contrast (PC) MRI is a noninvasive tool for quantitative blood flow measurement in vivo. A shortcoming of conventional PC imaging is the reduction in temporal resolution as compared to the corresponding magnitude imaging. For the measurement of velocity in a single direction, the temporal resolution is halved because one must acquire two differentially flow‐encoded images for every PC image frame to subtract out non‐velocity‐related image phase information. In this study, a high temporal resolution PC technique which retains both the spatial resolution and breath‐hold length of conventional magnitude imaging is presented. Improvement by a factor of 2 in the temporal resolution was achieved by acquiring the differentially flow‐encoded images in separate breath‐holds rather than interleaved within a single breath‐hold. Additionally, a multiecho readout was incorporated into the PC experiment to acquire more views per unit time than is possible with the single gradient‐echo technique. A total improvement in temporal resolution by ∼5 times over conventional PC imaging was achieved. A complete set of images containing velocity data in all three directions was acquired in four breath‐holds, with a temporal resolution of 11.2 ms and an in‐plane spatial resolution of 2 mm × 2 mm. Magn Reson Med 47:499–512, 2002. Published 2002 Wiley‐Liss, Inc." @default.
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- W2079775669 date "2002-02-20" @default.
- W2079775669 modified "2023-10-18" @default.
- W2079775669 title "High temporal resolution phase contrast MRI with multiecho acquisitions†" @default.
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- W2079775669 doi "https://doi.org/10.1002/mrm.10079" @default.
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