The reduction of inter- and intra-observer variability for defining regions of interest in nuclear medicine View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1985-10

AUTHORS

P. C. Jackson, M. Jones, C. E. Brimble, J. Hart

ABSTRACT

The use of region-of-interest (ROI) techniques to quantify data obtained in radionuclide images is common-place. However, the reproducibility of quantitation due to inter- and intra-observer variations using particular methods of deriving ROIs is often not appreciated. We examined such variations in the results obtained by four independent observers of varying experience using four methods of depicting a ROI about an organ. The set of image data consisted of renal scans with varying target-to-background ratios, and the ROI facilities included two edge-detection methods. The results indicated that, once observers were experienced with edge-detection methods, a lower inter- and intra-observer variation could be achieved, although the technique of ‘shrinking’ a ROI about a subjectively chosen display level was reasonably satisfactory. In terms or reproducibility, the least satisfactory method of depicting a ROI was the commonly used manually guided ‘bug’ around arbitarily chosen display levels representing the boundary of an organ. More... »

PAGES

186-189

References to SciGraph publications

  • 1981-05. A fully automated determination of the left ventricular region of interest in nuclear angiocardiography in CARDIOVASCULAR AND INTERVENTIONAL RADIOLOGY
  • 1981-08. Fully automated data acquisition, processing, and display in equilibrium radioventriculography in EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
  • 1981-01. An edge detection algorithm for use in radionuclide imaging in EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/bf00251372

    DOI

    http://dx.doi.org/10.1007/bf00251372

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1006842585

    PUBMED

    https://www.ncbi.nlm.nih.gov/pubmed/4065155


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