Vergleich der Monitor- und Alternatorbefundung von digitalen Thoraxaufnahmen mittels eines computergestützten Verfahrens

Autor:	Karin A. Herrmann, M. Schätzl, Ulrich Fink, C. Pistitsch, Fink Bk, P. Miller, D. Heckermann, W. Kenn, M. F. Reiser
Rok vydání:	1998
Předmět:	Receiver operating characteristic business.industry Computer science Image quality Software tool Radiography Significant difference Area under curve Radiology Nuclear Medicine and imaging Gold standard (test) Nuclear medicine business Digital radiography
Zdroj:	RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 169:38-44
ISSN:	1438-9010 1438-9029
DOI:	10.1055/s-2007-1015047
Popis:	PURPOSE To compare softcopy and hardcopy reading of chest radiographs a software tool was designed for creating lesions with clearly defined size, location and contrast. METHOD An ROC study was performed using a set of chest radiographs with 300 simulated small nodules and linear details displayed on film and on a 1 K monitor. Six observers participated in the study. ROC curves were generated on the basis of 7200 decisions. RESULTS There was no significant difference in observer performance overall (AUC = Area under curve). Monitor: 0.84 +/- 0.08 vs. AUC, Film: 0.84 +/- 0.08). Slight, but not statistical significant differences were found in the detection of low-contrast lung nodules and of linear lung details. CONCLUSION Soft-copy reading using a high quality 1 K CRT display provides the same accuracy for the detection of subtle computer-simulated lesions as hardcopy reading. A software tool could be used for assigning optimal characteristics of CRT- and hardcopy displays using clearly defined lesions as a gold standard.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d1eb337597cb6e52fb8dcf272e80dccd https://doi.org/10.1055/s-2007-1015047 Zobrazit plný text záznamu