Hybrid Imaging Unit Dynamic Measurement Time Extension
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Solution Overview
Problem
Hybrid medical imaging units with high spatial resolution and high sensitivity nuclear medicine devices face inefficiencies due to differing measurement times, leading to underutilization of system capacity and suboptimal image quality.
Innovation Solution
A method that dynamically adjusts the measurement time of one imaging modality based on the other, using truncation criteria such as predetermined time, signal count, or image quality metrics to extend data acquisition until the completion of the other modality's protocol, ensuring both devices operate more efficiently and acquire additional image data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the measurement protocol of one imaging modality is completed before the other, then that device becomes idle and system capacity utilization decreases, but extending the measurement time uniformly for both devices would improve capacity utilization while potentially degrading image quality for the modality that requires less time
Solution Approach 1:
The measurement time of the first imaging device is dynamically extended beyond its original protocol duration to match the measurement time of the second imaging device. This dynamic adjustment allows the system to maintain high capacity utilization while the control device manages the extended measurement period, ensuring that both devices operate efficiently without compromising image quality through rigid uniform extension
Solution Approach 2:
The measurement time parameter of the first imaging device is changed from its original protocol-defined duration to an extended duration that matches the second device's measurement time. This parameter change enables better system utilization while the control device coordinates the extended acquisition to maintain image quality standards
2Productivity
If the measurement time of the faster modality is extended to match the slower modality, then system capacity utilization improves, but the quantity of measurement data increases leading to longer processing times
Solution Approach 1:
The control device is configured to manage and coordinate the extended measurement process from the outset, preparing the system for the extended data acquisition period. This preliminary setup allows the system to handle the increased data volume efficiently during the extended measurement period, reducing processing bottlenecks that would otherwise occur
3Manufacturing precision
If dynamic extension of measurement time is implemented, then more image data is acquired improving image quality, but the complexity of the control system increases
Solution Approach 1:
The control device is designed with multi-functionality, serving both as the original protocol manager and as the coordinator for the extended measurement process. This universal design allows the system to implement dynamic time extension without adding separate dedicated control systems, thereby improving image quality while limiting the increase in control system complexity
Data Source
AI summary
A method is disclosed for operating a hybrid medical imaging unit including a first imaging device of relatively high spatial resolution and a second nuclear medicine imaging device of relatively high sensitivity that respectively acquire imaging measurement signals from a common examination volume. In at least one embodiment, the method includes determining the duration of the measurement signal acquisition of one imaging device as a function of the duration of the measurement signal acquisition of the other imaging device, which is defined by the occurrence of a specific truncation criterion.