Dual-Headed CZT Detector MBI System for Reduced Radiation Dose
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Molecular Breast Imaging (MBI) systems face limitations due to high radiation doses and long procedure times, particularly in high-risk populations and cases where x-ray mammography is inconclusive, necessitating reduced dose and increased diagnostic confidence.
Innovation Solution
A dual-headed MBI system utilizing cadmium zinc telluride (CZT) detectors with registered parallel hole collimators, which are aligned with the detector pixels, providing increased sensitivity and reduced scanning time, thereby decreasing the radiation dose and enhancing diagnostic confidence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional MBI systems are used, then diagnostic capability is provided, but radiation dose is high and procedure time is long
Solution Approach 1:
The system divides the breast imaging task into multiple simultaneous measurements using a dual-headed configuration with two CZT detectors and registered parallel hole collimators. Each detector head independently captures data from different angles, allowing the system to acquire complete diagnostic information in a single brief procedure rather than requiring multiple sequential scans, thereby reducing radiation dose while maintaining diagnostic confidence.
Solution Approach 2:
The patent changes the detection parameters by using CZT detectors with registered parallel hole collimators that have specific spatial dimensions configured based on detector characteristics. This optimization of collimator hole alignment and dimensions improves detection efficiency and sensitivity, allowing for reduced radiation dose and shorter procedure time while maintaining or enhancing diagnostic capability.
2Reliability
If traditional MBI systems are used, then diagnostic capability is provided, but procedure time is long
Solution Approach 1:
The dual-headed configuration allows simultaneous data collection from multiple angles in a single procedure, eliminating the need for sequential scanning. This segmentation of the imaging task across multiple detectors operating concurrently reduces procedure time while maintaining comprehensive diagnostic coverage.
Solution Approach 2:
The system maintains continuous data acquisition across both detector heads simultaneously, ensuring that diagnostic information is collected without interruption or sequential delays. This continuous parallel measurement approach significantly reduces the overall procedure time compared to traditional single-detector sequential scanning.
3Reliability
If sensitivity is increased, then diagnostic confidence is improved, but device complexity increases
Solution Approach 1:
The patent merges two CZT detector heads with registered parallel hole collimators into a single integrated MBI system. By combining the detection capabilities of both heads while maintaining their individual sensitivity advantages, the system achieves four-fold increased sensitivity without proportionally increasing complexity, as the detectors operate in a coordinated dual-headed configuration.
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
The dual-headed system achieves a four-fold increase in sensitivity and reduced scanning time, leading to improved diagnostic confidence and lower radiation doses, effectively addressing the limitations of existing MBI systems.
Implementation Method 1
at least one cadmium zinc telluride (CZT) detector having a plurality of pixels
Implementation Method 2
a registered parallel hole collimator coupled to a face of the CZT detector. The registered parallel hole collimator includes a plurality of collimator holes, wherein the plurality of collimator holes are aligned with the plurality of pixels
Data Source
AI summary
A system and method for a molecular breast imaging (MBI) are provided. One MBI system includes at least one cadmium zinc telluride (CZT) detector having a plurality of pixels and a registered parallel hole collimator coupled to a face of the CZT detector. The registered parallel hole collimator includes a plurality of collimator holes, wherein the plurality of collimator holes are aligned with the plurality of pixels, and the spatial dimensions of the plurality of holes are configured based on characteristics of the CZT detector and the registered parallel hole collimator.