Radial Beam Path Overlapping for Accurate 2D Medical Image Reconstruction
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Solution Overview
Problem
Existing methods for reconstructing medical images from 3D to 2D cannot accurately obtain a 2D overlapping image by selecting entire areas or predetermined areas, leading to inaccurate results due to differences in enlargement rates of 2D medical images from different cross-sections.
Innovation Solution
An apparatus and method that overlap 3D medical image information along a radial beam path in a projection direction to obtain a 2D medical image, allowing for selection of entire areas or predetermined areas for image reconstruction, reducing radiation exposure and equipment size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If 2D medical images from different cross-sections are combined by simple image combination, then a combined 2D medical image can be obtained, but the enlargement rates of images from different cross-sections differ due to radial beam characteristics, resulting in inaccurate 2D overlapping images
Solution Approach 1:
The patent changes the parameter of image processing by introducing radial beam path consideration and projection direction-based overlapping. Instead of simple image combination, the system processes images by tracing radial beam paths from the X-ray source through the object to the detector, adjusting how images from different cross-sections are overlapped to account for geometric magnification differences.
Solution Approach 2:
The patent introduces an intermediary processing step that considers the radial beam path geometry as a mediator between the raw 2D images and the final overlapping image. This intermediary process calculates the projection direction and adjusts the overlapping based on the radial beam characteristics, ensuring accurate spatial relationships are maintained.
2Reliability
If multiple separate examinations are conducted to obtain both 3D and 2D medical images, then comprehensive diagnostic information can be obtained, but additional radiation exposure occurs
Solution Approach 1:
The patent merges the functions of 3D and 2D image acquisition into a single CT examination process. By performing image reconstruction that can generate both volumetric 3D data and projected 2D overlapping images from the same raw projection data, the system eliminates the need for separate examinations, thereby reducing cumulative radiation exposure while maintaining diagnostic completeness.
Solution Approach 2:
The patent makes the image reconstruction system universal by enabling it to produce multiple types of diagnostic images (3D volumetric images and 2D overlapping images) from a single data acquisition process. This multi-functionality allows the same examination to serve multiple diagnostic purposes without requiring additional radiation exposure.
3Reliability
If traditional separate acquisition methods are used for 3D and 2D images, then each image type can be optimized independently, but equipment size and complexity increase
Solution Approach 1:
The patent implements a universal image reconstruction framework that handles both 3D and 2D image generation within a single system. The reconstruction algorithm can selectively produce different image types based on the same acquired data, eliminating the need for separate dedicated equipment while maintaining optimization capabilities for each image type through software-based processing.
Data Source
AI summary
The preset invention relates to an apparatus and a method for reconstructing a medical image for obtaining a 2D medical image (for example, a Cephalo image) from a 3D medical image (for example, a CT image), and a computer-readable recording medium keeping a program for implementing the method. In detail, the present invention provides an apparatus for reconstructing a medical image that includes: a 3D medical image obtaining unit obtaining 3D medical image information for making a 3D medical image of an object; a medical image overlapping unit overlapping the 3D medical image information in accordance with a radial beam path in a projection direction of a 2D medical image; and a 2D medical image obtaining unit obtaining and displaying the 2D medical image based on the overlapping result, and a method of reconstructing a medical image.