MRI Music Network Synchronization for Gradient Noise
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Magnetic resonance imaging (MRI) systems generate noise from gradient coils, causing discomfort and anxiety in patients due to rapid, strong current changes, and existing noise reduction methods are inadequate, especially when MRI sequences change quickly, leading to movement artifacts and increased stress.
Innovation Solution
Integrating the MRI device into a music network that synchronizes noise from the gradient coil system with music, using a synchronization unit to generate musical synchronization signals from internal MRI trigger pulses, allowing the MRI device to act as a 'clock master' to create a harmonious soundtrack that matches MRI sequences, thereby reducing patient anxiety and protecting hearing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If music is played to drown out gradient coil noise, then patient comfort is improved, but synchronization difficulty increases when TR changes
Solution Approach 1:
The system dynamically adjusts the music tempo based on the current TR value. The synchronization unit continuously monitors TR changes and modifies the music playback rate accordingly, ensuring the music remains synchronized with the gradient coil noise rhythm despite protocol variations. This dynamic adaptation resolves the contradiction by maintaining synchronization accuracy across different TR values.
Solution Approach 2:
The system changes the temporal parameters of music playback (tempo, beat rate) to match the TR parameter of the MRI protocol. By establishing a direct mapping between TR values and music playback parameters, the system maintains harmonic synchronization across varying protocol conditions, solving the adaptability problem.
2Power
If gradient coil currents are increased to improve signal strength, then imaging quality is improved, but noise level increases
Solution Approach 1:
The system converts the harmful noise from gradient coil operations into a beneficial musical soundtrack. The synchronization unit analyzes the noise characteristics and generates music that complements and harmonizes with the noise pattern, transforming the disturbing sound into an acceptable or even pleasant auditory experience during the MRI scan.
Solution Approach 2:
The system merges the gradient coil noise with music playback to create a unified acoustic output. By combining the noise signal with musical instruments and vocals in a synchronized manner, the system creates a harmonious composite sound that reduces patient discomfort while maintaining the necessary gradient coil power for imaging quality.
Data Source
Figure 1~2
Figure 3~4
AI summary
Magnetic resonance imaging system (1) for magnetic resonance examination of a patient (4), comprising a magnetic resonance device (2) with a gradient coil system (3), wherein the magnetic resonance device (1) further comprises a music network (11) with at least two communicating instrument devices (13) synchronized by synchronization signals sent via the music network (11) for generating a piece of music to be output to the patient (4), wherein one of the instrument devices (13) is the magnetic resonance device (2), which has as an interface to the music network (11) a synchronization unit (12) which is configured to derive synchronization signals for the music network (11) from sequence control signals received from a control device (8) of the magnetic resonance device (2), at least for the gradient coil system (3).