PET Detector Star Topology Simplifies Communication
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Solution Overview
Problem
The complexity of communication protocols between various components in PET imaging systems leads to intricate data transmission and potential data loss during compliance processes, necessitating complex bus control and subsequent data recovery for accurate image calibration.
Innovation Solution
Implementing a star-shaped network topology with a single communication protocol for all components, allowing each detector unit to transmit data directly to the reconstructing computer, and using a compressing and decompressing system to handle data packets, thereby simplifying communication and avoiding data loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple bus control modes are used for communication between components, then communication flexibility is improved, but transmission complexity increases
Solution Approach 1:
The patent implements a unified bus control mode where the data acquiring circuit, data processing circuit, and reconstructing computer all communicate through the same bus protocol. This universal communication interface eliminates the need for multiple different bus control modes, reducing transmission complexity while maintaining communication flexibility across all system components.
2Speed
If hard compliance online process is performed by data processing circuit, then data processing speed is improved, but data loss occurs
Solution Approach 1:
The patent introduces a buffer memory as an intermediary between the data acquiring circuit and the data processing circuit. The buffer temporarily stores acquired data, allowing the fast data processing circuit to process data at its own speed without causing data loss. This mediator resolves the conflict between fast processing speed and complete data transmission.
Solution Approach 2:
The patent performs preliminary data acquisition and buffering before compliance processing. By pre-storing data in the buffer memory, the system ensures that all necessary data is available before the hard compliance process begins, preventing any data loss that would occur if processing started immediately without adequate data preparation.
3Productivity
If data is discarded during compliance process, then processing efficiency is improved, but image calibration accuracy decreases
Solution Approach 1:
The patent implements a data recovery mechanism where data that would normally be discarded during compliance processing is instead preserved in the buffer memory. The reconstructing computer retrieves this previously discarded data to perform more accurate image calibration, thereby recovering the information loss while maintaining processing efficiency through the buffered architecture.
Data Source
AI summary
A system and method of a PET imaging are provided. According to an example, a detector, a movement control module, a power control module and a reconstructing computer may be connected to a switch in a form of a star-shaped network topology. The detector may include M*N detector units distributed in an annular structure, each detector unit may be allocated with an IP address, M detector units are evenly distributed on each circumferential direction of the annular structure, and N detector units are evenly distributed on each axial direction of the annular structure. Each of the detector units may transmit a set of acquired data to the reconstructing computer through the switch via a network bus; and the set of data may include location information, acquiring time information and IP address. The reconstructing computer may perform a compliance process on all sets of data acquired by the detector according to the location information, acquiring time information and IP address, and reconstruct an image with the compliance data determined by the compliance process.