X-ray CT Scan Plan Timing Chart Interface

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Solution Overview

Problem

Conventional X-ray computed tomographic apparatuses face difficulties in intuitively and clearly understanding the overall scan sequence and operability due to the display of scan plans in table form, especially with increased scan mode options and imaging speed, which complicates dynamic and multi-slice imaging.

Innovation Solution

The introduction of a scan plan support apparatus that generates a timing chart to visually represent the scan sequence, allowing operators to intuitively understand and modify scan conditions, including tube current and scan intervals, through a graphical interface, enhancing both visibility and operability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If scan plans are displayed in table form with text, then operability and visibility of individual scan conditions are improved, but intuitive understanding of the overall scan sequence deteriorates

Engineering Contradiction:
ImproveoperabilityVSAvoidunderstanding of scan sequence
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The patent transforms the one-dimensional table display into a two-dimensional timing chart that visually represents the scan sequence over time. The timing chart adds a temporal dimension to the display, showing scan intervals and sequence order graphically rather than just in tabular form, thereby improving intuitive understanding while maintaining operability.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If multiple scan modes are supported simultaneously, then imaging versatility is improved, but scan plan complexity increases

Engineering Contradiction:
Improveimaging versatilityVSAvoidscan plan complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the complex scan plan into individual scan elements that can be independently configured and visualized. Each scan element represents a discrete imaging task with specific parameters, allowing operators to manage multiple scan modes by breaking them down into manageable units rather than dealing with a monolithic complex plan.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The timing chart serves as an intermediary visualization tool that simplifies the representation of complex multi-mode scan plans. It provides a graphical interface that mediates between the complex underlying scan parameters and the operator's need for intuitive understanding, making it easier to plan and manage diverse imaging sequences.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3111848B1X-ray computed tomographic apparatus and scan plan support apparatus
Publication Date: 2019.11.27 TOSHIBA MEDICAL SYST CORP
  • EP3111848B1 patent drawingFigure 1
  • EP3111848B1 patent drawingFigure 2
  • EP3111848B1 patent drawingFigure 3

AI summary

A scan plan support apparatus for supporting development of a scan plan for X-ray computed tomography comprises a scan planning unit (200) adapted to generate data of a scan planning window including a time chart in which a plurality of scan elements are arranged based on start times of scans in a time direction. The scan plan support apparatus further comprises a display unit (116) for displaying the scan planning window on the basis of the generated data. Each scan element represents a scan mode type and dose index of X-ray scan, and the time chart represents the dose index of X-ray scan over time in each scan element.