Comparison of clinical application between CR and DR in the chest radiography

Objective To compare the clinical applications of computed radiography(CR)and direct digital X-ray radiography(DR)two kinds of imaging methods in chest radiography,in order to assist the practical work.Methods CR1000 cases of chest imaging and DR1000 cases are extracted.The patients between with CR and DR are comparatively analyzed by using a range of applications,photographic methods,X ray dose,imaging time,image quality,image conditioning and processing.Results The quality of the images was classified into grades A,B,C.Grade A accounted for 70.2%,and photo speed was 60/hour in DR group;grade A accounted for 57.4%,and photo speed was 30/hour in CR group.Conclusion DR is better than CR in image quality and grade A,but each has its own advantages and disadvantages.