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Locator

Locator is a display whose primary function is to collect feedback. It shows a volume viewer and let the user click on it to specify the location of a point of interest. Typically, this can be used to collect location data of lesions that were undetected by CADe plug-ins (i.e., false negatives).

Example​

Locator example

Synopsis​

displayStrategy
[
  {
    "feedbackKey": "falseNegatives",
    "caption": "FN Input",
    "type": "Locator",
    "options": {}
  }
]

Data Preparation​

If snapThresholdMm is used, the results.json file must contain lesion candidate locations as described in LesionCandidates.

Options​

type IntegrationOptions = 'off' | 'snapped';

interface LocatorOptions {
  volumeId?: number;
  excludeFromActionLog?: boolean;
  snapThresholdMm?: number | false;
  snapDataPath?: string;
  consensualIntegration?: IntegrationOptions;
}
  • volumeId: (default: 0) Which series to display.
  • excludeFromActionLog: boolean: (default: false) If set to true, nothing will be recorded to the action log regarding this display.
  • snapThresholdMm: number | false: If a number (> 0) is set, when there is a (hidden or displayed) lesion candidate near the clicked location, the clicked point snaps to the nearest candidate.
  • snapDataPath: string: (default: "results.lesionCandidates") Changes where to read the location data from. Used only when snapThresholdMm is set.
  • consensualIntegration: IntegrationOptions: (default: 'none') If this is set to 'snapped' and two or more user entered locations that snapped to the same lesion in the personal mode, they are integrated to one location.