MRI Protocol Optimization Computer Gradient Coil Overheating
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Solution Overview
Problem
Magnetic resonance apparatus components, particularly gradient coils, are prone to overheating due to varying scan protocols, which can lead to damage and inefficiencies in clinical tomography.
Innovation Solution
A method for optimizing multiple scan protocols using a protocol optimization computer to determine an optimized sequence that minimizes overheating by considering parameter settings such as echo time and relaxation time, and distributing high-heating measurements to prevent sequential overload, while allowing for manual selection and graphical display for medical operators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple scan protocols are executed sequentially without optimization, then complete patient data can be acquired, but gradient coils may overheat due to cumulative heating from high-heating measurements
Solution Approach 1:
The system performs preliminary analysis of the scan protocol sequence before execution, calculating cumulative heating effects in advance. The protocol optimization computer determines an optimized sequence that prevents overheating before it occurs, rather than reacting to overheating conditions during the examination. This allows the complete patient data acquisition to proceed without interruption or component damage.
Solution Approach 2:
The system dynamically adjusts the sequence of scan protocols based on real-time or predicted thermal states of the gradient coils. By making the examination sequence adaptive rather than fixed, the system can redistribute high-heating measurements to prevent cumulative overheating while still completing all necessary data acquisitions for the patient.
2Reliability
If high-heating measurements are distributed to prevent overheating, then component reliability improves, but examination time may increase due to optimized sequencing
Solution Approach 1:
The optimized sequence determination is performed in advance, before the actual examination begins. By calculating the optimal protocol sequence ahead of time, the system minimizes the time lost during the examination itself, while still achieving the goal of preventing component overheating and extending equipment lifespan.
Solution Approach 2:
The system modifies the sequencing parameters of scan protocols rather than changing the protocols themselves. By adjusting the order and timing of measurements, the system prevents overheating without adding unnecessary examination time, maintaining efficiency while protecting components.
3Ease of operation
If manual selection of scan protocol sequence is allowed, then operator flexibility is maintained, but optimal utilization of gradient coils cannot be guaranteed
Solution Approach 1:
The system provides feedback to the operator about the thermal implications of different scan protocol sequences. The protocol optimization computer analyzes the proposed sequence and communicates potential overheating risks, allowing the operator to make informed decisions. This maintains operator control while ensuring component protection through educated sequencing choices.
Solution Approach 2:
The system automatically determines an optimized sequence when the operator does not specify one, or when the optimization feature is enabled. This self-service capability ensures that even without manual intervention, the gradient coils are protected from overheating while still completing the necessary examinations, thus maintaining both flexibility and reliability.
Data Source
AI summary
In a method for the optimization of multiple scan protocols for at least one magnetic resonance examination is performed by a magnetic resonance apparatus, patient data for at least one patient are recorded that includes the selection of two or more different measurements, each including at least one scan protocol, which includes at least one magnetic resonance examination. An optimized sequence of the multiple scan protocols for the two or more different measurements for the at least one magnetic resonance examination is determined by a protocol optimization computer. The optimized sequence of the multiple protocols is presented at a display monitor.