X-ray CT Apparatus Integrating Chest and Lesion Plans

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Solution Overview

Problem

Conventional X-ray CT apparatuses require multiple scans and increased radiation exposure when imaging a patient's entire chest and specific lesion sites, leading to prolonged examination times and patient discomfort.

Innovation Solution

The X-ray CT apparatus integrates two plans to set a third plan by combining a first plan for the entire chest and a second plan for the lesion site, modulating X-ray tube current and helical pitch to reduce radiation exposure and enhance spatial resolution, allowing for a single imaging process with improved efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple scans are performed to image the entire chest and specific lesion sites, then image quality for both areas is improved, but radiation exposure increases and examination time is prolonged

Engineering Contradiction:
Improveimage qualityVSAvoidradiation exposure
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent merges multiple imaging plans (entire chest scan and lesion site scan) into a single integrated imaging plan. The planning circuitry combines the first plan for the entire chest and the second plan for the lesion site into a third plan that can be executed in one scanning operation, thereby reducing radiation exposure while maintaining image quality for both areas.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent implements dynamic adjustment of scanning parameters during the imaging process. The system dynamically modulates X-ray tube current and adjusts helical pitch based on the integrated plan, optimizing radiation dose distribution across different anatomical regions while ensuring adequate image quality for both the entire chest and specific lesion sites.

Inventive Principle:
Principle #15Dynamics

2Area of stationary object

If multiple scans are performed to image the entire chest and specific lesion sites, then comprehensive imaging coverage is achieved, but examination time is prolonged

Engineering Contradiction:
Improveimaging coverageVSAvoidexamination time
Core Design Contradiction:
Area of stationary objectVSLoss of time

Solution Approach 1:

The patent combines multiple imaging plans into a single integrated plan that covers both the entire chest and specific lesion sites. This merging allows the imaging system to acquire all necessary data in one continuous scanning operation rather than requiring separate scans, thereby reducing examination time while maintaining comprehensive imaging coverage.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent enables continuous data acquisition throughout the imaging process by integrating multiple plans into one seamless scanning operation. The system continuously collects imaging data for both the entire chest and lesion sites without interruption, eliminating the time loss associated with repositioning and re-scanning that would occur with multiple separate scans.

Inventive Principle:
Principle #20Continuity of useful action

3Adaptability or versatility

If separate imaging plans are used for the entire chest and lesion site, then imaging requirements for each area are met, but device complexity increases

Engineering Contradiction:
Improveimaging capabilityVSAvoidplan integration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal planning system that can handle multiple imaging requirements simultaneously. The planning circuitry is designed to integrate different types of imaging plans (entire chest and lesion site) into a single unified plan, making the system multi-functional and adaptable to various imaging scenarios without requiring separate dedicated systems for each imaging type.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 reduces radiation exposure, shortens examination time, and enhances image quality by integrating data acquisition conditions for the entire chest and lesion site, enabling more efficient and comfortable medical examinations.

Implementation Method 1

a gantry 10 configured to radiate X-rays onto an examined site of a patient P, to detect the X-rays that have passed through the patient P

Methodology Applied
Scientific EffectX-ray generation: X-Ray

Data Source

PatentUS10939879B2X-ray CT apparatus
Publication Date: 2021.03.09 CANON MEDICAL SYST CORP
  • US10939879B2 patent drawing
  • US10939879B2 patent drawing
  • US10939879B2 patent drawing

AI summary

An X-ray CT apparatus according to an embodiment includes setting circuitry. The setting circuitry is configured to set a third plan for a patient, by integrating together a first plan for the patient and a second plan for the patient.