Hideki Ota1, J. Kevin DeMarco2, Minako Wakayama3, David C. Zhu2, Kei Takase1, Shoki Takahashi1
1Diagnostic Radiology, Tohoku University Hospital, Sendai, Miyagi, Japan; 2Radiology, Michigan State University, East Lansing, MI, United States; 3Cardiology, Sendai Red Cross Hospital, Sendai, Miyagi, Japan
The purpose of this study was to compare carotid plaque characteristics in Japanese (Asian) and Midwest American (Caucasian) patients with advanced atherosclerosis. Twenty-two Japanese and 32 American men with asymptomatic >50% carotid stenosis and history of coronary artery disease underwent multi-contrast carotid MR imaging. After adjusting for baseline demographic characteristics as possible confounders, Japanese patients more commonly had complicated AHA-type VI plaque, hemorrhage and larger necrotic core than Americans. The present results indicate that the development of carotid atherosclerosis appears different between the two populations with advanced atherosclerosis.