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A ROC (Receiver Operating Characteristic) plot is a graphical tool used to assess the performance of a binary classification model by illustrating the trade-off between sensitivity (true positive rate) and specificity (false positive rate). By plotting sensitivity against 1 - specificity across various threshold settings, the ROC curve shows how well the model distinguishes between classes, with a curve closer to the top-left corner indicating a more accurate model. The area under the ROC curve...
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ROCView: prototype software for data collection in jackknife alternative free-response receiver operating

J Thompson1, P Hogg, S Thompson

  • 1Department of Nuclear Medicine, Furness General Hospital, Barrow-in-Furness, UK. john.thompson@mbht.nhs.uk

The British Journal of Radiology
|May 11, 2012
PubMed
Summary
This summary is machine-generated.

ROCView is a web-based tool for image display and response capture (IDRC) in observer studies. It enables consistent data collection for receiver operating characteristic analysis from any location.

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Area of Science:

  • Medical Imaging
  • Radiology Informatics

Background:

  • Accurate reader response recording is crucial for observer performance studies.
  • Existing methods for collecting reader responses can be cumbersome and location-dependent.

Purpose of the Study:

  • To introduce ROCView, a novel web-based image display and response capture (IDRC) solution.
  • To facilitate consistent and flexible data collection for free-response receiver operating characteristic (FROC) studies.

Main Methods:

  • ROCView provides a web-based platform for image display and response capture.
  • It allows observers to localize and rate findings using mouse clicks on a continuous or ordinal scale.
  • The system supports multiple imaging modalities and randomized image presentation.

Main Results:

  • ROCView enables unsupervised image evaluation from any location with consistent display conditions.
  • It records up to nine mark-rating pairs per image, with unmarked images defaulting to a score of zero.
  • True-positive and false-positive reports are downloadable for analysis.

Conclusions:

  • ROCView offers a user-friendly and adaptable solution for observer response studies.
  • The software has the potential to aid in assessing the performance differences of various imaging methods.
  • This tool can enhance the efficiency and accessibility of FROC paradigm studies.