Radiation Imaging System Biopsy Needle Positioning
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Solution Overview
Problem
Current radiation imaging systems face difficulties in obtaining high visibility images of both the biopsy needle and the object of interest, making it challenging to confirm their positional relationship during medical procedures like biopsies.
Innovation Solution
A radiation imaging system that captures multiple projection images of a breast from different angles, generates tomographic images, specifies the object of interest, and synthesizes the biopsy needle's image onto a sectional image, enhancing visibility and facilitating the confirmation of their positional relationship.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional radiation imaging is used to capture images during biopsy, then the imaging process is simple, but both the biopsy needle and object of interest cannot be visualized with high visibility simultaneously
Solution Approach 1:
The imaging system segments the visualization task into two parts: a sectional image showing the object of interest and a synthesized image showing the biopsy needle. The synthesis unit combines these separate images to provide comprehensive visibility of both elements simultaneously, resolving the contradiction between visibility and system complexity.
Solution Approach 2:
The system generates a sectional image from three-dimensional tomographic data and synthesizes it with the two-dimensional projection image containing the biopsy needle. This dimensional transformation allows both the needle and object of interest to be visualized clearly in their respective optimal planes, achieving high visibility without excessive complexity.
2Measurement precision
If multiple projection images are captured from different angles, then the object of interest can be localized accurately, but the imaging time and processing complexity increase
Solution Approach 1:
The system performs preliminary tomographic imaging to generate a three-dimensional dataset and create a sectional image showing the object of interest before the actual biopsy procedure. This preliminary action allows accurate localization of the target, reducing the need for repeated imaging during the procedure and minimizing total imaging time.
Solution Approach 2:
The synthesis unit creates a synthesized image by overlaying the biopsy needle image onto the pre-generated sectional image. This copying approach allows real-time visualization of the needle position relative to the object of interest without requiring additional complex imaging procedures, thus reducing processing time while maintaining positional accuracy.
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 system effectively improves the visibility of both the biopsy needle and the object of interest, enabling accurate confirmation of their positional relationship, thereby aiding in precise medical procedures.
Implementation Method 1
a radiation detector configured to detect radiation and an imaging stand configured to include the radiation detector, and exposes a breast in a state where the breast placed on an imaging surface of the imaging stand and a biopsy needle inserted into the breast to radiation at each of different projection angles to capture a plurality of projection images by the radiation detector
Data Source
AI summary
Disclosed are a radiation imaging system, an image processing device, and a non-transitory computer-readable recording medium having an image processing program recorded thereon which facilitate the confirmation of a positional relationship between an object of interest and a biopsy needle. A control unit of a console reconstructs a projection image obtained by tomosynthesis imaging to generate a tomographic image parallel (an x-y-axis direction) to an imaging surface in a state where a needle is inserted into a breast, and specifies an image of an object of interest from the tomographic image. The control unit generates a sectional image which includes the specified image of the object of interest and an image of the needle and intersects the imaging surface. The control unit generates an image of the needle from the projection image, synthesizes the generated image of the needle into the sectional image while aligning, and displays the sectional image.