ROC-study of a teleradiology workstation versus film readings

Jan Størmer, S. R. Bolle, T. Sund, G. E.R. Weller, J. N. Gitlin

Research output: Contribution to journalArticlepeer-review


Purpose: We have used receiver operating characteristic (ROC) analysis to compare screen assessment of digitized radiographic films transmitted by a teleradiology system, with evaluation of the original radiographs on film. Material and Methods: The material contained 120 cases (about 50% with selected pathology) that were difficult to diagnose. Four radiologists each evaluated half of the cases on film, and half on computer screen. The screen display was 1024x836 pixels with 8 bits/pixel. Results: We found the accuracy and sensitivity of the teleradiology system to be clearly inferior to film evaluation. Conclusion: Improvement is needed both in the teleradiology system, and in the training of radiologists to work on the electronic workstation.

Original languageEnglish (US)
Pages (from-to)176-180
Number of pages5
JournalActa Radiologica
Issue number1
StatePublished - Jan 1997


  • ROC analysis
  • Teleradiology, digitization

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging


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