Study on Assessment Techniques for ICT Scanner Spatial Resolution Measurement

This paper represents the subjective method and objective method, which were dedicated to the assessment of spatial resolution in CT system, and analyses the influence rule of scan parameters on the spatial resolution of CT image. The comparative study of the two methods was carried out in 3 ICT systems under the same condition, and it was found that the test result of subject method was significantly higher than the result of object method, and then the test result and relationship between two methods was discussed.