Liquid-Crystal Display Monitors and Cathode-Ray Tube Monitors: A Comparison of Observer Performance in the Detection of Small Solitary Pulmonary Nodules
| Autor: | Sung Min Ko, Joon Beom Seo, Byeong-Kyoo Choi, Tae-Hwan Lim, Soon-A Hwang, Kyung-Hyun Do, Koun-Sik Song, Jae Woo Song, Soo Hyun Lee, Jin Seong Lee |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
medicine.medical_specialty
Lung nodule Cathode ray tube Radiography Diagnostic radiology observer performance law.invention Digital image law medicine Humans Radiology Nuclear Medicine and imaging Observer Variation Liquid-crystal display Receiver operating characteristic business.industry Solitary Pulmonary Nodule Nodule (medicine) Gold standard (test) Radiographic Image Enhancement ROC Curve Radiography digital Data Display Original Article Radiology medicine.symptom business Nuclear medicine |
| Zdroj: | Korean Journal of Radiology |
| ISSN: | 2005-8330 1229-6929 |
| Popis: | Objective To compare observer performance using liquid-crystal display (LCD) and cathode-ray tube (CRT) monitors in the interpretation of soft-copy chest radiographs for the detection of small solitary pulmonary nodules. Materials and Methods By reviewing our Medical Center's radiologic information system, the eight radiologists participating in this study (three board-certified and five resident) retrospectively collected 40 chest radiographs showing a solitary noncalcified pulmonary nodule approximately 1 cm in diameter, and 40 normal chest radiographs. All were obtained using a storage-phosphor system, and CT scans of the same patients served as the gold standard for the presence of a pulmonary nodule. Digital images were displayed on both high-resolution LCD and CRT monitors. The readers were requested to rank each image using a five-point scale (1 = definitely negative, 3 = equivocal or indeterminate, 5 = definitely positive), and the data were interpreted using receiver operating characteristic (ROC) analysis. Results The mean area under the ROC curve was 0.8901±0.0259 for the LCD session, and 0.8716±0.0266 for the CRT session (p > 0.05). The reading time for the LCD session was not significantly different from that for the CRT session (37.12 and 41.46 minutes, respectively; p = 0.889). Conclusion For detecting small solitary pulmonary nodules, an LCD monitor and a CRT monitor are comparable. |
| Databáze: | OpenAIRE |
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