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Improving the spatial resolution and SNR of rat brain T2-weighted MR images: application of a super-resolution method

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van Reeth, E., van Reeth | Sdika, Michaël | Gaillard, S. | Luppi, P.-H. | Libourel, P.-A. | Beuf, O.

Edité par CCSD -

International audience. We propose a scanning protocol and a super-resolution methodology to improve the resolution of rat brain MR images. The MRI resolution is inherently limited by the strength of the B0 magnetic field, SNR consideration and scanning time. When coupled to optimal acquisition strategies, post-processing acquisitions such as super-resolution can be used to improve the resolution with few modifications of the classic protocols and in reasonable scanning times [1]. They have proved to improve the trade-off between scanning time, image resolution and SNR cite. We focus on isotropic volume reconstruction as in-plane resolution improvement has been shown to be very limited in the best case. The goal is to reconstruct a SR volume that has a better resolution and SNR than a single MR volume acquired in the same scanning time.

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