A ROC Study Of Detection Accuracy Of Single Pulmonary Nodules By Image Diagnostic Monitors With Different Resolution

Rationale and Objectives: The transition from analog to digital imaging in radiology has been accelerated by the introduction of innovative digital imaging modalities such as direct digital radiography (DR), and with the development of Picture Achieving Communication System (PACS) and digital imaging, the interpretation of images in clinical radiology is facing a new developmental chance and changing rapidly from a procedure based on film and light boxes to one based on computers and monitors. Cathode-ray tube (CRT) monitor-based reading (soft copy reading) is currently thought to be an at least equivalent diagnostic efficiency and accuracy compared to conventional film-based reading, and is now widely accepted in medical practice. Digital imaging diagnoses have two main groups of advantages: those related to digital display and those related to imaging processing.But, as a result of the economical reason, a number of Chinese hospitals to which workstations equiped with lower resolution have been used, zoom and roam capabilities such as window width adjustment and window center adjustment have allowed limitations inherent in the display in order to compensate for the inadequate contrast; however, it is not clear whether such a replace and manipulations will yield results similar to those obtained with the higher-resolution displays or whether they will be acceptable in the clinical environment.