Juan Zhang has completed her MD from the age of 25 years from Liaoning Medical University, China. She has been a radiologist for 15years. Now she is special in ultrasound diagnose, working and researching in Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China. He has published 17 papers in reputed journals. Her research area mainly focus on ultrasound diagnose of small organs disease including thyroid cancer and breast cancer. The correlations between the expression of C-erB-2, CD34 and ER in breast cancer patients and the signs of conventional ultrasonograghy and ultrasound elastography is her current research which improve that Combination of up-regulated expression of C-erB-2, CD34, and ER and signs of ultrasound can improve the diagnosis of BC.