Medical Diagnostic Imaging Apparatus Synchronized Optical and X-ray CT
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Solution Overview
Problem
Conventional medical diagnostic imaging techniques, such as X-ray CT, face challenges in achieving real-time imaging with reduced radiation exposure, as they often require imaging wide areas and may not accurately depict the positional relation of abnormal sites within the body.
Innovation Solution
The integration of optical cameras around the X-ray CT apparatus to acquire biological information from a second site, allowing for synchronized imaging with X-ray projection data, enabling the generation of medical images that can display both real-time and wide-area information with reduced radiation exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a scan image is used to provide wide-area imaging, then the overall positional relation can be viewed, but the image lacks real-time property since imaging is performed in advance
Solution Approach 1:
The patent combines scan imaging and main imaging into a single integrated imaging process. The scan image and main image are acquired simultaneously during the same imaging run, allowing both wide-area coverage and real-time visualization of positional relationships between abnormal sites.
Solution Approach 2:
The imaging system dynamically adjusts between scan imaging mode and main imaging mode within the same examination session. The system can switch between different imaging ranges and parameters while maintaining continuous real-time imaging capability throughout the procedure.
2Area of stationary object
If a three-dimensional image is used to ensure wide range imaging, then the overall view is improved, but the radiation exposure amount increases
Solution Approach 1:
The patent applies partial imaging by acquiring projection data only for the necessary angular ranges and time periods required for diagnostic purposes. Rather than performing complete 360-degree scans continuously, the system acquires sufficient data to reconstruct images with adequate coverage while minimizing redundant radiation exposure.
Solution Approach 2:
The imaging system uses periodic, intermittent scanning rather than continuous scanning. Projection data is acquired at specific time intervals and angular positions during the breathing cycle and examination procedure, reducing overall radiation exposure while maintaining image quality for diagnostic evaluation.
3Measurement precision
If conventional X-ray CT imaging is performed to obtain medical images, then diagnostic information is acquired, but real-time imaging with reduced radiation exposure cannot be achieved
Solution Approach 1:
The patent implements continuous real-time imaging throughout the examination procedure by continuously acquiring projection data and reconstructing images in real-time. This allows dynamic visualization of abnormal sites and their positional relationships throughout the entire examination, maintaining continuous diagnostic information flow without interruption.
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 allows for the simultaneous acquisition of real-time, wide-area imaging with reduced radiation exposure, enhancing diagnostic accuracy by providing synchronized medical images that correlate with the movement and position of the object being examined.
Implementation Method 1
an X-ray CT apparatus rotates an X-ray source around an object (patient) at a high speed, and generates a large number of pieces of projection data based on the strength of X-rays that passed through the object
Implementation Method 2
acquire biological information from a sensor that detects the biological information at a second site of the object
Data Source
AI summary
In one embodiment, A medical diagnostic imaging apparatus includes: a scanner that images a first site of an object and generates medical image data, wherein the scanner acquires biological information from a sensor that detects the biological information at a second site of the object that is different to the first site, and images the first site based on the biological information that changes according to a movement at the second site of the object.