Evaluation of a PC-based teleconferencing system for reading chest radiographs.

摘要: Chest radiographs from 50 patients, including 25 with lung cancer, were digitized at a resolution of 100dots inch 40 dots cm and saved in JPEG format low compression ratio. The average size the stored images was 55kByte range 6-86 kByte . Four respiratory specialists observed these on cathode ray tube CRT display PC-based teleconferencing system 800 x 600 pixels. One month later they original chest radiographs. A receiver operating characteristic ROC analysis performed their diagnoses, based five-point confidence scale about presence cancer. observer-specific Az values for ranged 0.801 to 0.944, corresponding conventional 0.926 0.957. No significant differences found between images, which suggests that could be useful diagnosis cancer r...