The MR Cap: A single-sided MRI system designed for potential point-of-care limited field-of-view brain imaging.

ABSTRACT:

Purpose

The size, cost, and siting requirements of conventional MRI systems limit their availability and preclude usage as monitoring or point-of-care devices. To address this, we developed a lightweight MRI for point-of-care brain imaging over a reduced field of view (FOV).

Methods

The B₀ magnet was designed with a genetic algorithm optimizing homogeneity over a 3 × 8 × 8 cm FOV and a built-in gradient for slice selection or readout encoding. An external pair of gradient coils enables phase encoding in the other two directions and a radiofrequency (RF) coil provides excitation and detection. The system was demonstrated with high-resolution 1D "depth profiling" and 3D phantom imaging.

Results

The lightweight B₀ magnet achieved a 64-mT average fie

SUBMITTER: McDaniel PC 

PROVIDER: S-EPMC6660420 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature