Patent ID: 11927652
Assignee: BEIJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 5:
6. A multi-coil handheld MPI method, implemented through the structure for multi-coil handheld MPI according to claim 1, and comprising:
S100: applying the currents to the two circular coils in the first circular coil pair and the two circular coils in the second circular coil pair to generate the gradient field and the FFP;
S200: applying the current to the circular excitation and correction coil to move the FFP in the z-direction to scan a target object;
S300: moving the FFP in the x-direction and they-direction through the first circular coil pair and the second circular coil pair to scan the target object; and
S400: reconstructing, based on the nonlinear magnetic induction signal of the SPIO nanoparticles detected by the circular detection coil, a spatial distribution of the SPIO nanoparticles through a preset reconstruction method to obtain a magnetic particle image corresponding to the target object.