SYSTEMS AND METHODS FOR MAGNETIC MATERIAL IMAGING

摘要

Magnetic material imaging (MMI) system including first and second sets of field-generating coils. Each of the field-generating coils of the first and second sets has an elongated segment that extends along an imaging axis of the medical imaging system. The imaging axis extends through a region-of-interest (ROI) of an object. The elongated segments of the first set of field-generating coils are positioned opposite the elongated segments of the second set of field-generating coils and the ROI is located between the first and second sets of field-generating coils. The MMI system also includes a coil-control module configured to control a flow of current through the first and second sets of field-generating coils to generate a selection field and to generate a drive field. The selection and drive fields combine to form a movable 1D field free region (FFR) that extends through the ROI.

主权项

1. A magnetic material imaging (MMI) system comprising:
first and second sets of field-generating coils, each of the field-generating coils of the first and second sets having an elongated segment that extends along an imaging axis of the medical imaging system, the imaging axis extending through a region-of-interest (ROI) of an object, wherein the elongated segments of the first set of field-generating coils are positioned opposite the elongated segments of the second set of field-generating coils and the ROI is located between the first and second sets of field-generating coils; a coil-control module configured to control a flow of current through the first and second sets of field-generating coils to generate a selection field and to generate a drive field, the selection and drive fields combining to form a movable 1D field free region (FFR) that extends through the ROI; and a detection assembly positioned relative to the ROI to detect changes in magnetization of magnetic material located proximate to the 1D FFR in the ROI.