Objectives To evaluate the relation between myocardial blood flow (MBF) reserve and percent ventricular wall thickening (%WT) at rest and during dobutamine administration in the presence of chronic coronary stenosis when resting MBF is normal.

• 目的 评价静息和多巴酚丁胺负荷时室壁增厚百分率 (%25WT)与心内膜下心肌血流 (MBF)储备的关系。