Gradient coil noise masking for MRI device

Abstract

When subjecting a patient to an MRI scan, noise generated by gradient coils in an MRI device is beautified by playing a complementary musical piece that matches the gradient coil noise in one or both of tempo and musical key. Complementary musical pieces (e.g., songs, tunes, melodies, etc.) are pre-generated for specific gradient coil sequences. Upon selection of one or more sequences to be executed during an MR scan, complementary musical pieces for the selected sequence(s) are identified and played back to a patient in the bore of the MRI device during the scan to alleviate patient stress. Tempo and / or musical key of the complementary musical pieces is adjustable (a priori or in real time) to synchronize the complementary musical piece(s) to a specific gradient sequence both rhythmically and harmonically.

Description

technical field [0001] The invention finds particular application in object imaging systems, in particular magnetic resonance imaging (MRI). However, it is understood that the described techniques may also be applied to other imaging systems, other medical scenarios, or other medical techniques. Background technique [0002] In MRI equipment, a patient lying in the bore of the main magnet is subject to considerable noise levels created in the bore due to gradient switching, helium pump operation, ventilation, etc. To protect the patient's ears, over-the-ear headphones are sometimes provided. In addition, the operator of the MRI equipment can also communicate with the patient through this headset. However, such earphones fail to sufficiently attenuate ambient noise, and considerable noise still reaches the patient's ear via tissue and bone conduction. Even with the best around-ear headphones, patients are still exposed to considerable noise levels, much of which comes from...

AI Technical Summary

Problems solved by technology

Loud and repetitive gradient coil noise can exacerbate these discomforts, increasing patient stress

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