Gradient coil noise masking for MRI device

A gradient coil and noise technology, which is applied in the direction of sound-emitting devices, interference to communication, and magnetic resonance measurement, can solve the problems of increasing patient tension and aggravation, and achieve the effect of improving comfort and reducing tension

Inactive Publication Date: 2011-07-06
KONINK PHILIPS ELECTRONICS NV
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Problems solved by technology

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

Method used

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  • Gradient coil noise masking for MRI device
  • Gradient coil noise masking for MRI device
  • Gradient coil noise masking for MRI device

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Embodiment Construction

[0016] The systems and methods described herein facilitate beautifying the noise produced by components of the MRI apparatus during a patient scan to improve patient comfort and reduce patient stress. see figure 1 , shows a system configuration comprising a noise beautifying system (NBS) 10 coupled to an MRI apparatus 12 . The following discussion provides a brief overview of the MRI device 12 and its causes of patient discomfort that can be alleviated by the introduction of the harmonically and rhythmically aligned sounds provided by the NBS 10 .

[0017] The MRI device 12 includes several components that generate noise during operation of the MRI device, which can cause discomfort and / or stress to the patient. For example, the MR device includes a cylindrical main magnet assembly 14 . The main magnet assembly 14 may be a cryogenically shielded superconducting solenoid that defines a bore 16 for placing a subject therein for imaging. The main magnet assembly 14 generates a...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/385G01R33/28G10K11/175
CPCG01R33/3854G01R33/288G10K11/175H04K3/42H04K3/45H04K3/825H04K2203/12
Inventor I·施马勒T·克勒
Owner KONINK PHILIPS ELECTRONICS NV
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