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药物应激显像是无创伤性检测冠心病(CAD)和评价不能充分运动患者预后的一种重要方法。替代运动应激试验检测CAD及其程度的理想方案是静脉注射潘生丁、腺苷和多巴酚丁胺的(201)~铊((201)~Tl)和(99m)~Tc-sestamibi((99m)~Tc-MIBI)单光子发射型计算机断层显像(SPECT)灌注显像的药物应激。标准剂量的潘生丁和腺苷可使心肌血流量增加3～5倍。虽然腺苷引起心肌血流量的增加比潘生丁大、达到最大血流增加的患者多,但明显冠脉狭窄的检出率两者相仿。潘生丁、腺苷和多巴
Medical stress imaging is an important method of noninvasive detection of coronary artery disease (CAD) and prognosis of patients who do not exercise adequately. An ideal alternative to exercise stress testing for detection of CAD and its extent is intravenous injection of (201) ~ thallium (201 ~ Tl) and (99m) ~ Tc-sestamibi (99m ) ~ Tc-MIBI) single photon emission computed tomography (SPECT) perfusion imaging of drug stress. Standard doses of dipyridamole and adenosine can increase myocardial blood flow 3 to 5 times. Although adenosine caused an increase in myocardial blood flow greater than dipyridamole, reaching the largest number of patients with increased blood flow, but the apparent detection rate of both coronary stenosis similar. Dipyridamole, adenosine and dopa