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Comparison Between CRT and LCD Displays for Full-Field-Digital-Mammography (FFDM) Interpretation

  • Chiara Del Frate
  • Alexia Bestagno
  • Viviana Londero
  • Raffaella Pozzi Mucelli
  • Valerio Salomoni
  • Massimo Bazzocchi
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4046)

Abstract

Purpose: To evaluate efficacy and diagnostic accuracy of BARCO LCD 5Mpixel displays, compared to BARCO CRT 5Mpixel displays in full-field-digital-mammography (FFDM) interpretation.

Material and Methods: FFDM mammograms obtained by 100 patients, were analyzed by three independent radiologists experienced in breast imaging, using two different CRT and LCD displays. All cases were selected by a fourth radiologist in order to cover several possible ages and types of breast. Half of cases were negative and half were positive for malignancy, proven by percutaneous biopsy. Readers were blinded to history of patients, ultrasound examination and biopsy results. To minimize recall bias, an interval of at least 30 days between interpretations of each case on two different monitors was chosen. Each reader evaluated cases classifying them according the ACR BIRADS categories. Moreover, they assigned a rate (0-100) corresponding to the Probability of Malignancy (POM) of each case classified into BIRADS categories 3 to 5. Finally, they assigned a rate (0-100) corresponding to reading confidence.

Analysis included ROC curves of POM for each doctor and for pooled data, sensitivity and specificity for the BIRADS≥3 and BIRADS≥4 thresholds for each doctor and for pooled data, and finally main results of “Multireader- Multicase ROC Analysis Of Variance”. For each analysis a comparison was made between the two monitors.

Results: No statistical significance was seen between the two displays regarding POM, sensitivity and specificity, nor for single reader either for pooled data.

Conclusions: This study provides a reasonable assurance that the examined CRT and LCD display systems are comparable for FFDM interpretation.

Keywords

Liquid Crystal Display Digital Mammography Digital Mammogram Minimize Recall Bias False Positive Fraction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Chiara Del Frate
    • 1
  • Alexia Bestagno
    • 1
  • Viviana Londero
    • 1
  • Raffaella Pozzi Mucelli
    • 1
  • Valerio Salomoni
    • 1
  • Massimo Bazzocchi
    • 1
  1. 1.Insitute of RadiologyUniversity of UdineItaly

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