Aortic root ring sign: multimodality imaging of aortic root abscess.

Aortic root ring sign: multimodality imaging of aortic root abscess H. Liu*, Y.-H. Juan*, Q. Wang, J. Xie, Q. Hou, H. Fei, X. Zhang, H. Zhou, C. Liang, Y.-C. Lin, R.Y. Kwong and S.S. Saboo From the Department of Radiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, GuangZhou, GuangDong, China, Department of Cardiovascular Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA, Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital, Linkou and Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan, Department of Cardiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, GuangZhou, GuangDong, China, Department of Cardiovascular Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, GuangZhou, GuangDong, China, Department of Thoracic Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, GuangZhou, GuangDong, China and Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX, USA