Comparison of 5-megapixel cathode ray tube monitors and 5-megapixel liquid crystal monitors for soft-copy reading in full-field digital mammography.
Purpose: To retrospectively compare the image quality, lesion detection, and the diagnostic efficacy of 5-megapixel (MP) cathode ray tube monitors (CRTs) and 5-MP liquid crystal display monitors (LCDs) for soft-copy reading in full-field digital mammography (FFDM). Materials and Methods: Informed co...
| Published in: | European Journal of Radiology Vol. 76; no. 1; pp. 68 - 73 |
|---|---|
| Main Authors: | , , , , , , , , , , , |
| Format: | research Journal Article |
| Published: |
Elsevier B.V.
Oct2010
|
| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104927617&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104927617 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 0720048X 3S7 jtl: European Journal of Radiology issn: 0720048X maglogo: N pubinfo: dt: Oct2010 vid: 76 iid: 1 pid: 1004 pub: Elsevier B.V. artinfo: ui: 104927617 NLM19481396 2010807501 10.1016/j.ejrad.2009.04.070 NLM19481396 104927617 ppf: 68 ppct: 5 formats: tig: atl: Comparison of 5-megapixel cathode ray tube monitors and 5-megapixel liquid crystal monitors for soft-copy reading in full-field digital mammography. aug: au: Schueller G Schueller-Weidekamm C Pinker K Memarsadeghi M Weber M Helbich TH Schueller, Gerd Schueller-Weidekamm, Claudia Pinker, Katja Memarsadeghi, Mazda Weber, Michael Helbich, Thomas H affil: Department of Radiology, Medical University of Vienna, Vienna, Austria sug: subj: Breast Neoplasms Radiography Computer Terminals Data Display Mammography Equipment and Supplies User-Computer Interface Adolescence Adult Aged Aged, 80 and Over Equipment Design Female Human Industry Middle Age Predictive Value of Tests Radiographic Image Interpretation, Computer-Assisted Retrospective Design Sensitivity and Specificity Nonparametric Statistics Adolescent: 13-18 years Adult: 19-44 years Aged: 65+ years Aged, 80 & over Middle Aged: 45-64 years Female ab: Purpose: To retrospectively compare the image quality, lesion detection, and the diagnostic efficacy of 5-megapixel (MP) cathode ray tube monitors (CRTs) and 5-MP liquid crystal display monitors (LCDs) for soft-copy reading in full-field digital mammography (FFDM). Materials and Methods: Informed consent was waived by the Institutional Review Board for the data analysis. A total of 220 cases were compared with two 5-MP (2048×2560 pixels) CRTs and two 5-MP (2048×2560 pixels) LCDs. Nine aspects of image quality (brightness, contrast, sharpness, noise, skin, fat, retromamillary space, glandular tissue, and detection of calcifications) were evaluated. In addition, the detection of breast lesions (mass, calcifications) and diagnostic efficacy, based on the BI-RADS classification, were correlated with histologic results (n=70) and follow-up (n=150). Results: Each aspect of the image quality was rated significantly better for 5-MP LCDs (p<0.05) compared to the 5-MP CRTs. With 5-MP CRTs, 31 masses and 119 calcifications were detected, compared to 30 and 121 with 5-MP LCDs. The differences in diagnostic efficacy between 5-MP CRTs and 5-MP LCDs were not significant (p=0.157) although 5-MP CRTs yielded two false-negative results. Both lesions were rated BI-RADS 3 with 5-MP CRTs. Both were invasive carcinomas at histology. The sensitivity, specificity, positive and negative predictive values, and accuracy were 0.966, 0.975, 0.933, 0.988, and 0.973 for 5-MP CRTs, compared to 1.0, 0.963, 0.903, 1.0, 0.973 for 5-MP LCDs. Conclusion: The image quality of 5-MP LCDs is significantly better than that of 5-MP CRTs for soft-copy reading in FFDM, based on histologic and follow-up correlation. However, lesion detection and diagnostic efficacy are comparable to 5-MP CRTs. The interpretation of the false-negative results suggests that the characterization of breast lesions with FFDM is not defined solely by the monitors, but is strongly influenced by the radiologist. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|