Image Display Apparatus Guide Lines for Stereoscopic Biopsy Alignment
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Solution Overview
Problem
Current medical imaging technologies fail to accurately select and align the biopsy region in stereographic images with the scout image, leading to inaccurate determination of the three-dimensional position of the biopsy region during breast biopsy procedures.
Innovation Solution
An image display apparatus that includes a first radiographic image acquirer, a second radiographic image acquirer, a biopsy region selector, and calculators to display guide lines in stereographic images corresponding to the selected biopsy region in the scout image, enabling accurate selection and calculation of the three-dimensional position of the biopsy region, with warnings for discrepancies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the biopsy region is selected in stereographic images without guide lines, then the operation is simple, but the measurement precision of biopsy region alignment is poor
Solution Approach 1:
The system performs preliminary action by automatically calculating and displaying guide lines in advance before the biopsy region selection is completed. The guide lines are pre-computed based on the selected biopsy region in the scout image and the geometric relationship between scout and stereographic images, enabling the operator to quickly and accurately align the biopsy region across multiple images without complex real-time calculations during the selection process.
Solution Approach 2:
The guide lines serve as an intermediary visual element that mediates between the scout image and stereographic images. These guide lines translate the spatial relationship information between different imaging planes into a visual format that directly assists the operator in aligning the biopsy region, thereby improving measurement precision without requiring complex interactive tools or multiple measurement steps.
2Measurement precision
If guide lines are displayed in stereographic images, then the biopsy region selection accuracy is improved, but the ease of operation is reduced
Solution Approach 1:
The guide lines are pre-calculated and displayed automatically when the biopsy region is selected in the scout image, eliminating the need for manual measurement or complex interactive alignment procedures. This preliminary computation of spatial relationships and automatic visualization of guide lines significantly reduces the operational burden on the user while maintaining high selection accuracy.
Solution Approach 2:
The system performs self-service by automatically calculating the guide line positions based on the selected biopsy region and the predetermined geometric relationships between imaging planes. The operator simply needs to select the biopsy region in the scout image, and the system autonomously computes and displays the corresponding guide lines in stereographic images, reducing the need for manual intervention and complex operations.
3Measurement precision
If the biopsy region position is determined manually without automated calculation, then the device complexity is low, but the measurement precision of three-dimensional position is poor
Solution Approach 1:
The system performs preliminary action by pre-storing the geometric relationships and spatial transformation parameters between the scout image and stereographic images. These pre-calculated spatial relationships enable the system to automatically determine the three-dimensional position of the biopsy region through straightforward coordinate transformation, avoiding the need for complex real-time calculations while achieving high measurement precision.
Solution Approach 2:
The system replaces manual mechanical measurement and calculation methods with automated computational algorithms. Instead of requiring the operator to manually measure and calculate three-dimensional positions using physical tools or complex manual procedures, the system uses computer-based automated calculation based on pre-stored geometric relationships, significantly improving measurement precision while reducing the complexity of the operational process.
4Reliability
If no warning system is implemented for position discrepancies, then the device complexity is low, but the reliability of biopsy region alignment is poor
Solution Approach 1:
The system implements feedback by automatically calculating the distance between the selected biopsy region in the scout image and the corresponding position derived from stereographic images, then providing visual feedback through warning indications when discrepancies exceed predetermined thresholds. This feedback mechanism ensures reliable alignment by immediately alerting the operator to potential positioning errors, thereby improving the reliability of biopsy region alignment without requiring overly complex verification systems.
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
Facilitates easy and accurate selection of identical biopsy regions across images, ensuring precise three-dimensional positioning and preventing misalignment, thus enhancing the accuracy of tissue sampling during breast biopsies.
Implementation Method 1
a first radiographic image acquirer for acquiring a first radiographic image obtained by a radiation detector that detects radiation having passed through an object to be examined, which includes a biopsy region, and that converts the detected radiation into a radiation image
Data Source
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AI summary
An image display apparatus includes a first radiographic image acquirer (112) for acquiring a first radiographic image captured in the scout image capturing process, a second radiographic image acquirer (114) for acquiring a plurality of second radiographic images captured in the stereographic image capturing process, a first display controller (116) for displaying the first radiographic image on a display unit (120), and a second display controller (118) for displaying the second radiographic images on the display unit (120) and, in case that the biopsy region (36) is selected in the displayed first radiographic image, displaying, in the second radiographic images, respective guide lines (204) passing through positions in the second radiographic images which correspond to the position of the biopsy region (36) selected in the first radiographic image and extending parallel to or substantially parallel to a prescribed direction.