PET Insert System for MRI Signal Interference Reduction
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Solution Overview
Problem
Current PET/MR hybrid systems face challenges in achieving simultaneous data acquisition while maintaining optimal performance, due to signal interference and hardware integration issues, leading to reduced detection sensitivity and prolonged imaging times.
Innovation Solution
A multi-modality imaging system with a PET insert that allows for simultaneous PET and MR imaging, featuring a PET detector with multiple detection blocks arranged in various configurations and a control system, which can be easily integrated into existing MRI systems without significant modification, minimizing interference and enhancing signal detection sensitivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If PET detectors are integrated into MRI system, then simultaneous data acquisition is enabled, but signal interference occurs reducing detection sensitivity
Solution Approach 1:
The PET detection system is divided into multiple independent detection blocks that can be selectively positioned and configured. Each detection block operates independently, allowing optimization of signal detection in specific regions while minimizing interference with MRI signals in other areas.
Solution Approach 2:
An insert configuration is introduced as an intermediary component between the PET detectors and MRI system. This insert allows PET functionality to be added without direct integration into the core MRI system, reducing signal interference while enabling simultaneous operation.
2Adaptability or versatility
If PET functionality is integrated into existing MRI system, then multi-modality imaging is achieved, but system complexity increases requiring significant modification
Solution Approach 1:
The imaging system is designed with universal components that can perform both PET and MRI functions. The insert configuration allows the same physical space to support multiple imaging modalities without requiring separate dedicated systems, reducing overall complexity while maintaining versatility.
Solution Approach 2:
The PET detection blocks are nested within or around the MRI system bore in a compact configuration. This nesting approach allows PET functionality to be incorporated into the existing MRI footprint without requiring separate space or major structural modifications to the host system.
3Measurement precision
If PET detectors are positioned close to sample area, then detection sensitivity is improved, but interference with MRI signals increases
Solution Approach 1:
Different regions of the imaging system are assigned different functional qualities. The insert configuration creates localized zones where PET detectors are positioned optimally for detection sensitivity in specific areas, while other regions maintain MRI signal integrity. This spatial differentiation of functional qualities allows both modalities to operate effectively without mutual interference.
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
Enables perfect temporal correlation of structural and functional data sets, improves signal detection sensitivity for both PET and MRI, and allows for flexible imaging configurations, reducing patient costs and imaging time while maintaining high diagnostic accuracy.
Implementation Method 1
a PET detector comprising a plurality of detection blocks, each detection block having a scintillator face
Data Source
AI summary
The present disclosure relates to an insert system for performing positron emission tomography (PET) imaging. The insert system can be reversibly installed to an existing system, such that PET functionality can be introduced into the existing system without the need to significantly modify the existing system. The present disclosure also relates to a multi-modality imaging system capable for conducting both PET imaging and magnetic resonance imaging (MRI). The PET and MRI imaging can be performed simultaneously or sequentially, while the performance of neither imaging modality is compromised for the operation of the other imaging modality.