脑测量装置和脑测量方法
By combining a photoexcited magnetic sensor and an MRI device, and using geomagnetic and actively shielded magnetic sensors to correct for geomagnetic and changing magnetic fields, the problems of large errors and complex equipment in existing brain magnetic field and MRI measurements are solved, achieving efficient and low-cost synchronous measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HAMAMATSU PHOTONICS KK
- Filing Date
- 2021-06-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to effectively reduce the effects of geomagnetic noise and changing magnetic fields in brain magnetic field and MRI measurements, resulting in large measurement errors and complex, costly equipment.
By employing a photoexcited magnetic sensor combined with geomagnetic and actively shielded magnetic sensors, and correcting the geomagnetic and changing magnetic fields through geomagnetic field correction coils and active shielding coils, and combining the static magnetic field and tilting magnetic field coils of the MRI device for measurement, the simultaneous measurement of brain magnetic field and MRI images is achieved.
It achieves efficient reduction of the influence of geomagnetism and changing magnetic fields in the same device, reduces measurement errors, simplifies equipment structure, reduces costs, and eliminates the need for superconducting static magnetic field coils and magnetic shielding rooms.
Smart Images
Figure CN113805122B_ABST