Transducer Layout Generation Using Simplified Surface Models
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Solution Overview
Problem
Segmenting medical images for tumor treating field transducer placement is computationally demanding and time-consuming, particularly for complex body regions like the torso, requiring significant resources and healthcare provider time.
Innovation Solution
Generate transducer layouts for tumor treating fields without performing segmentation by selecting a healthy model based on subject characteristics and associating it with an abnormality model, calculating dosage, and determining transducer locations using electrical properties of tissues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If medical image segmentation is performed for transducer placement, then transducer layout accuracy is improved, but computational processing time and resource consumption increase significantly
Solution Approach 1:
The patent creates simplified 3D surface models that copy only the essential geometric features of the patient's body from medical images, without performing full tissue segmentation. This allows transducer placement planning to proceed using these simplified surface copies, maintaining accuracy for transducer positioning while avoiding the computational burden of detailed segmentation.
Solution Approach 2:
The patent extracts only the necessary surface geometry information from medical images, separating this essential data from the unnecessary detailed tissue segmentation. By taking out only the surface model required for transducer placement, the system achieves accurate positioning without the time-consuming full segmentation process.
2Measurement precision
If detailed tissue segmentation is performed, then treatment dosage calculation accuracy is improved, but healthcare provider time and computational resources increase
Solution Approach 1:
The patent creates simplified 3D surface models that copy only the essential geometric features of the patient's body from medical images, without performing full tissue segmentation. This allows transducer placement planning to proceed using these simplified surface copies, maintaining accuracy for transducer positioning while avoiding the computational burden of detailed segmentation.
Solution Approach 2:
The patent extracts only the necessary surface geometry information from medical images, separating this essential data from the unnecessary detailed tissue segmentation. By taking out only the surface model required for transducer placement, the system achieves accurate positioning without the time-consuming full segmentation process.
3Manufacturing precision
If full medical image segmentation is performed, then transducer placement precision is improved, but device complexity and resource requirements increase
Solution Approach 1:
The patent creates simplified 3D surface models that copy only the essential geometric features of the patient's body from medical images, without performing full tissue segmentation. This allows transducer placement planning to proceed using these simplified surface copies, maintaining accuracy for transducer positioning while avoiding the computational burden of detailed segmentation.
Solution Approach 2:
The patent extracts only the necessary surface geometry information from medical images, separating this essential data from the unnecessary detailed tissue segmentation. By taking out only the surface model required for transducer placement, the system achieves accurate positioning without the time-consuming full segmentation process.
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
This approach reduces computational processing and healthcare provider time while providing effective TTFields treatment, saving resources and improving treatment efficiency.
Implementation Method 1
AC voltage is applied between the first pair of transducers for a first interval of time to generate an electric field with field lines generally running in the front-back direction. Then, AC voltage is applied at the same frequency between the second pair of transducers for a second interval of time to generate an electric field with field lines generally running in the right-left direction.
Data Source
AI summary
A method for determining transducer locations for delivery of tumor treating fields based on approximate abnormality location, includes: receiving a selection of a healthy model from a plurality of healthy models, the healthy model being representative of a subject; receiving an identification of a location of an abnormality and a size of the abnormality; associating, by at least one processor, a model of the abnormality with the healthy model based on the location of the abnormality and the size of the abnormality to obtain a customized model of the subject; receiving a selection of locations on the customized model of the subject to place transducers to treat the abnormality; calculating for each of the locations, a dosage of tumor treating fields treatment for a region of interest in the customized model of the subject; and selecting one or more of the locations as recommended locations based on the dosage.