Magnetic resonance imaging method and system for operating room

Abstract

The invention relates to the technical field of intraoperative image navigation, in particular to a magnetic resonance imaging method and system for an operating room, which are used for acquiring channel radio-frequency signal amplitude of an intraoperative magnetic resonance receiving array signal, calculating a signal attenuation ratio of a tissue area, analyzing a local signal attenuation trend and generating intraoperative magnetic resonance signal attenuation characteristics. According to the invention, by detecting the signal amplitude, identifying the abnormal region and optimizing the balance of the radio-frequency signal, the misjudgment of the low-signal region is reduced. The gain correction value is dynamically adjusted, and the image resolution and the signal stability are improved. Magnetic field gradient changes are analyzed, magnetic induction offset abnormal areas are screened, and interference of surgical instruments on images is reduced. Calculating a magnetic field compensation value, adjusting the amplitude of the pixel signal, enabling the magnetic induction distortion region signal to recover balance, and improving the space precision. Image signal distribution is detected, signal equalization is optimized, and image consistency is improved.

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