Here we present the first demonstration of dental imaging in a low cost MRI setup at sub-Tesla fields (260 mT). We show 3D reconstructions of a rabbit head and human teeth acquired in “DentMRI – Gen I” (Fig. 1(a)), a home-made special-purpose MRI scanner designed with the goal of demonstrating dental imaging at low field strengths. We use two variations of zero echo time (ZTE) pulse sequences (Fig. 1(b)): standard PETRA , and Double Radial Non Stop Spin Echo (DRaNSSE), which we have devised to address limitations we find with PETRA. We reconstruct images by Algebraic Reconstruction Techniques (ART).
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