Pelvic MRI Localization Guide With Integrated Coil And Fiducials
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Solution Overview
Problem
Current MRI-guided interventions lack a comprehensive system that integrates fiducials with the MR receive coil, limiting their effectiveness in demarcating patient anatomy and guiding interventional devices, particularly for pelvic procedures.
Innovation Solution
A stereotactic perineum positioning device that includes a frame with a patient receive coil and a fiducial array, allowing for MR-visible fiducials and a fiducial receive coil to be integrated, enabling precise localization and guidance during MRI-guided pelvic interventions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If standalone fiducials are used without integration into the MR receive coil, then device complexity is reduced, but measurement precision and reliability of anatomy demarcation deteriorate
Solution Approach 1:
The patent combines the MR receive coil and fiducial array into a single integrated device, where the fiducial array is mounted directly on the receive coil structure. This merging ensures that the fiducials and coil move together as one unit, eliminating registration errors between separate components while maintaining relatively simple device construction.
2Adaptability or versatility
If generic fiducial systems are used without body-part specific design, then adaptability is reduced, but device complexity is lowered
Solution Approach 1:
The patent designs the fiducial array and receive coil with specific geometric configurations tailored for pelvic anatomy imaging. The fiducial markers are positioned and oriented to optimize demarcation of pelvic structures, and the coil geometry is adapted to conform to the pelvic region, providing localized optimization rather than a generic one-size-fits-all approach.
3Ease of operation
If fiducials are not integrated into the receive coil, then ease of operation is improved, but reliability of interventional guidance deteriorates
Solution Approach 1:
By integrating the fiducial array directly onto the receive coil structure, the patent ensures that both components function as a unified system during MRI-guided interventions. This integration maintains ease of operation through streamlined setup while significantly improving reliability by eliminating misalignment between separate fiducial and coil systems, ensuring accurate and consistent anatomy demarcation throughout the procedure.
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 precise registration and guidance of interventional devices, such as biopsy tools, by creating a common coordinate system for MR-acquired images and physical templates, enhancing the accuracy and efficiency of pelvic interventions.
Implementation Method 1
MRI or other imaging modalities often use fiducials to demark the location of a patient's anatomy and/or location of an interventional device
Data Source
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AI summary
Interventional localization guides and methods for MRI guided pelvic interventions are disclosed. The interventional localization guides can include a stereotactic perineum positioning device having integrated MR receive coil array and fiducial receive array. The interventional localization guide can also include a physical template for guiding a surgical device, such as a biopsy needle. In various instances, the MRI guided pelvic interventions including co-registering biopsy locations on third party MRI scans.