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用放射性同位素研究心血管疾病已有50余年历史。直至近十余年来,由于器械设备的进展,包括γ照相机和电子计算机的应用,新的、半衰期短和低能量放射性同位素的不断出现,使核心脏病学迅速发展,并广泛用于临床。 核心脏病学是一种无创性检查方法,仅需静脉注入小剂量放射性同位素,即可显示心肌灌注、细胞存活性和解剖结构的改变;还可获取心脏功能方面的资料。这些是其他常规检查方法所不能得到的。这种检查可以重复数次,便于连续随访观察,而不致对病人造成放射性损害。现今核心脏病学检查方法有三大类:
Cardiovascular diseases have been studied for more than 50 years with radioisotopes. Until recently, nuclear cardiology was rapidly developed due to advances in instrumentation and equipment, including the use of gamma cameras and electronic computers, and the advent of new, short-lived and low-energy radioisotopes and their widespread use in the clinic. Nuclear cardiology is a noninvasive method of examining cardiac perfusion, cell viability, and anatomic changes simply by intravenous injection of a small dose of radioisotope. Information on cardiac function can also be obtained. These are other methods of routine inspection can not get. This test can be repeated several times to facilitate continuous follow-up observation without causing radiological damage to the patient. There are three main types of nuclear cardiology checkups today: