On-chip three dimensional microcoils for MRI at the microscale.

Badilita, Vlad; Kratt, Kai; Baxan, Nicoleta; Mohmmadzadeh, Mohammad; Burger, Tobias; Weber, Hans; Elverfeldt, Dominik V; Hennig, Jürgen et al. · Lab Chip · 2010

basic_science · Level V

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Abstract

We present for the first time a fully MEMS-integrated technology to manufacture 3D geometrically perfect solenoidal microcoils for microscale MRI applications. We report 25 microm isotropic resolution MR images of a copper sulfate aqueous phantom. These images are acquired using microcoils with 5 windings of insulated 25 microm diameter Au wire and with quality factors as high as 46 at the operating frequency (400 MHz).

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