MRI Gantry Illumination for Claustrophobia Reduction

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Solution Overview

Problem

Magnetic Resonance Imaging (MRI) apparatuses face challenges in reducing noise generated by gradient coils and improving subject comfort during image-capturing processes, as existing methods to enlarge the bore aperture are limited by performance and image quality considerations.

Innovation Solution

The implementation of front and rear light sources and reflecting units within the gantry device, utilizing transparent or translucent materials, to create a brighter and more spacious perception of the bore entrance and interior, enhancing subject comfort through the 'savannah effect' and effective utilization of space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the bore aperture is enlarged to improve subject comfort, then subject comfort is improved, but RF coil performance and image quality deteriorate

Engineering Contradiction:
Improvesubject comfortVSAvoidimage quality
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent applies color changes and illumination to the bore interior surfaces, transforming the dark, confined space perception into a brighter, more open environment. By illuminating the bore with specific colors and patterns, the visual perception of space is expanded, improving subject comfort without physically enlarging the aperture.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The patent introduces light as an intermediary element between the subject and the bore structure. This light field acts as a mediator that modifies the subject's perception of the bore's physical dimensions, creating a psychological sense of larger space without altering the actual physical aperture size.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the bore wall is brightened with illumination to improve subject comfort, then subject comfort is partially improved, but the sense of insecurity and claustrophobia remains

Engineering Contradiction:
Improvesubject comfortVSAvoidsense of insecurity
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent employs dynamic color changes and multi-color illumination schemes throughout the bore interior. Different color zones and patterns are used to create a more engaging and less threatening visual environment, transforming the sterile white walls into a more psychologically comfortable multi-hued space that reduces insecurity and claustrophobia.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The patent adds the dimension of color and dynamic lighting patterns to the otherwise static and monochromatic bore environment. By introducing chromatic variation and temporal changes in illumination, the patent creates a richer perceptual dimension that distracts from the confining geometry and reduces the sense of insecurity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This configuration enhances subject comfort by creating a sense of larger space and security during image-capturing processes, ensuring comfortableness regardless of posture, while efficiently utilizing the bore's interior space without compromising image quality or performance.

Implementation Method 1

front and rear light sources and reflecting units within the gantry device

Methodology Applied
Scientific EffectLight emission: Light

Implementation Method 2

reflecting units within the gantry device, utilizing transparent or translucent materials

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS9931051B2Magnetic resonance imaging apparatus and medical image diagnosis apparatus
Publication Date: 2018.04.03 TOSHIBA MEDICAL SYST CORP
  • US9931051B2 patent drawing
  • US9931051B2 patent drawing
  • US9931051B2 patent drawing

AI summary

A magnetic resonance imaging apparatus according to the present embodiments comprises a gantry device, a front light source and an exterior casing of the gantry device. The gantry device has a bore serving as a space where a magnetic resonance image is captured, with the gantry device being configured to acquire, when a subject placed on a couchtop has been moved into the bore by a couch device configured to move the couchtop, a magnetic resonance signal from the subject. The front light source is provided in surroundings of a front opening, with the front opening being an opening of the bore positioned at front of the couch device. The exterior casing of the gantry device, with a portion of the exterior casing being illuminated by light emitted from the front light source, is made of a transparent or translucent material.