《循环》杂志包含了与心血管疾病相关的临床和实验室研究有关的科学卓越的原创贡献。临床研究包括临床研究和临床试验，涉及心血管医学和外科、流行病学、放射学和病理学等多个学科。
Circulation contains original contributions of scientific excellence concerned with clinical and laboratory research relevant to cardiovascular disease. Clinical research, including clinical studies and trials, are from many disciplines including cardiovascular medicine and surgery, epidemiology, radiology, and pathology.