Objective By discussing molybdenum target mammogrphy technique,the importance of standardization of operation are understood further. Methods 300 patients were examined in CC and MLO position with computed X-ray mammography. The main points of mammogrphy technique are summarized. Results 97% of the 300 mammogrphic films meet the requirements of imaging and clinical diagnosis. Mammogram in CC and MLO position can display breast glands clear and glands interval connective tissue, fat, blood vessels and soft tissue and lesions size, shape and location as well. Conclusion The standardization of mammography is the kdy to early and accurate diagnosis of breast imaging lesions.

Objective To use high and low condition to get contrast radiography of nasal bone photograph to raise the image quality. Methods 75 cases with nasal bone injury were adopted as the subjects. Results In 75 cases of nasal bone wound,93% could meet the demand. Conclusion Nasal bone side position photography in high and low codition can rasie the image quality and meet the clinical diagnosis demand in maxium degraee.