External Raw Scan Data Storage for Retrospective CT Reconstruction

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Solution Overview

Problem

Current medical imaging technologies, such as CT scanners, only temporarily store raw data, making it impossible to perform additional image reconstructions without repeating the scan, which exposes patients to additional radiation and limits diagnostic accuracy and the adoption of new reconstruction algorithms.

Innovation Solution

A system for collecting, storing, and analyzing raw scan data independently of the scanner, allowing for image reconstruction using third-party software and reducing the need for repeat scans by storing raw data in a database for later processing and interpretation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If raw scan data is temporarily stored only on the scanner, then the scanning process is simple and fast, but additional image reconstructions cannot be performed without repeating the scan

Engineering Contradiction:
Improvediagnostic accuracyVSAvoiddata storage system
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent extracts raw scan data from the scanner's temporary storage and transfers it to an external database system. This separation allows the scanner to maintain its simple, fast operation while the external database enables additional reconstructions without requiring repeat scans, thus improving diagnostic accuracy without significantly increasing scanner complexity

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces an external database system as an intermediary between the scanner and reconstruction software. This mediator stores raw data permanently and provides it to multiple reconstruction algorithms, enabling retrospective reconstructions without repeating scans while keeping the scanner itself relatively simple

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If raw scan data is saved for later use, then retrospective reconstructions can be performed, but storage space and data management complexity increase

Engineering Contradiction:
Improvereconstruction flexibilityVSAvoiddata storage volume
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The external database system serves multiple functions: storing raw scan data, enabling retrospective reconstructions, supporting multiple reconstruction algorithms, and providing data to different users. This multi-functionality justifies the storage investment by providing versatile access to the data without requiring separate storage systems for each purpose

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

Solution Approach 2:

The patent performs preliminary action by saving raw scan data immediately after acquisition in an external database. This advance preparation ensures data is available for future retrospective reconstructions and algorithm testing without requiring repeat scans, making the additional storage volume worthwhile for long-term research and diagnostic flexibility

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If only proprietary scanner software is used for reconstruction, then the system is simple to operate, but adoption of new reconstruction algorithms is limited

Engineering Contradiction:
Improvealgorithm diversityVSAvoidsystem usability
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent extracts raw scan data from the proprietary scanner environment and places it in an external database accessible to third-party software. This separation allows researchers and developers to create and test new reconstruction algorithms independently without modifying the scanner's proprietary software, thus increasing algorithm diversity while maintaining the original system's ease of operation

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The external database acts as an intermediary that decouples the scanner's proprietary software from reconstruction algorithms. This mediator allows multiple independent software applications to access the same raw data without interfering with each other or the scanner's operation, enabling algorithm diversity while keeping the scanning process simple and user-friendly

Inventive Principle:
Principle #24Intermediary (Mediator)

4Measurement precision

If repeat scans are performed to obtain additional reconstructions, then more diagnostic information can be obtained, but patients are exposed to additional radiation

Engineering Contradiction:
Improvediagnostic precisionVSAvoidradiation exposure
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent performs preliminary action by permanently storing raw scan data in an external database immediately after acquisition. This advance preparation enables multiple retrospective reconstructions using the same original data, providing enhanced diagnostic precision through different algorithms and parameters without requiring patients to undergo additional radiation exposure from repeat scans

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9691167B1Systems, apparatus and methods for collecting and storing raw scan data and software for performing data processing, image reconstruction and interpretation
Publication Date: 2017.06.27 ITOMOGRAPHY CORP
  • US9691167B1 patent drawing
  • US9691167B1 patent drawing
  • US9691167B1 patent drawing

AI summary

Systems, apparatus and methods for collecting, storing, processing, reconstructing, and interpreting raw scan data from a medical diagnostic imaging scan. Raw data after a scan such as a Computed Tomography (CT) scan is sent to a raw scan database system and image reconstruction system, where image volumes are reconstructed using software from the software bank and sent to a data management system. Raw scan data generated once by a scanner is continuously used at later times to reconstruct images of the patient without having to perform additional patient scans.