Detector Arm Radial Adjustment for SPECT Imaging Flexibility
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Solution Overview
Problem
Conventional SPECT imaging systems lack flexibility and customization, being limited by fixed configurations and materials, which restrict their ability to adapt to specific patient needs and operational changes, and they require manual adjustments for different imaging applications.
Innovation Solution
A medical imaging system with a gantry equipped with multiple detector arm assemblies, each comprising a stator, detector head, radial motion motor, and detector head belt, allowing for radial movement and adjustment of detector heads to optimize imaging based on patient position and type of scan, enabling customizable and automated configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional SPECT imaging systems use fixed configurations with gamma cameras mounted on a single gantry, then the system structure is simple and stable, but the system lacks flexibility and cannot be customized for specific patient needs
Solution Approach 1:
The system divides the imaging system into multiple independent detector arms that can be individually configured and positioned. Each detector arm operates independently, allowing the system to be customized for different imaging applications without requiring complete system redesign.
Solution Approach 2:
The detector arms are designed to be dynamically adjustable in position and configuration rather than fixed. This allows the system to adapt to different patient sizes, scan types, and imaging requirements by moving detectors to optimal positions during operation.
2Adaptability or versatility
If gamma cameras are formed from particular materials with specific collimation, then the imaging sensitivity and performance are optimized for particular scan types, but the application is limited to specific scan types only
Solution Approach 1:
The system employs multiple detector arms that can be configured to perform different imaging functions. By having universal detector components that can be positioned and oriented differently, the system can handle various scan types (whole body bone exams, cardiac exams, etc.) without requiring separate specialized systems.
3Adaptability or versatility
If the system configuration changes to accommodate different patient needs, then the customization and adaptability improve, but manual adjustments are required which increase operation time
Solution Approach 1:
The system incorporates automated control mechanisms that allow detector arms to self-adjust to optimal positions based on programmed parameters. The system can automatically reconfigure for different patient types and scan protocols without requiring manual intervention, reducing operation time while maintaining customization capability.
4Area of stationary object
If detector heads are made larger to improve imaging coverage, then the field of view increases, but the weight and space requirements increase
Solution Approach 1:
Instead of increasing detector head size in one dimension, the system uses multiple detector arms positioned at different angles and locations around the patient. This multi-dimensional arrangement provides comprehensive coverage without requiring individual detector heads to be excessively large or heavy.
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
The system provides flexible and efficient imaging by allowing dynamic adjustment of detector positions and types, improving image quality and reducing scan time while accommodating various patient sizes and imaging requirements without the need for extensive reconfiguration.
Implementation Method 1
The radial motion motor is operably coupled to at least one of the detector head or the stator. Rotation of the radial motion motor causes movement of the detector head in the radial direction.
Implementation Method 2
The detector head belt is operably coupled to the radial motion motor and the carrier section. Rotation of the radial motion motor causes movement of the detector head in the radial direction.
Data Source
Figure 1~2
Figure 3
Figure 4A~4B
AI summary
A detector arm assembly is provided that includes a stator, a detector head, a radial motion motor, and a detector head belt. The stator is configured to be fixedly coupled to a gantry having a bore. The detector head includes a carrier section that is slidably coupled to the stator and configured to be movable in a radial direction in the bore relative to the stator. The radial motion motor is operably coupled to at least one of the detector head or the stator. The detector head belt is operably coupled to the radial motion motor and the carrier section. Rotation of the radial motion motor causes movement of the detector head in the radial direction.