Investigate Usage of Myocardial Perfusion Scan before Patients of Coronary Arterial Disease Received Percutaneous Coronary Dilatation

Abstract

Background: The correct diagnosis of coronary arterial diseases (CAD) should be acquired by non-invasive approach of myocardial perfusion scan (MPS) or invasive approach of coronary angiography (CA) before patients of CAD received percutaneous coronary dilatation. According to the guideline, non-invasive approach of MPS is used for primary examination and then CA for secondary procedure to examine when patients had positive MPS result. The aim of this study is to investigate utilization of MPS and CA one year before patients of CAD received percutaneous coronary dilatation.Materials and methods: The research data is a randomized, systemic sampling cohort data of 500,000 beneficiaries for National Health Insurance Research Database from 2004 to 2008. Data contained outpatient services and the inpatient services data of patients. Our research included the patients of CAD that received percutaneous coronary dilatation from 2004 to 2008. The frequency of MPS and CA a year before percutaneous coronary dilatation was analyzed, respectively.Results: Between 2004 and 2008, there were 1148 patients of CAD that received percutaneous coronary dilatation, including 7 (0.61%) patients that received MPS only, 906 (78.92%) patients that received CA only, 217 (18.90%) patients that received MPS then CA, 11 (0.96%) patients that received CA then MPS and 7 (0.61%) patients that received no MPS and no CA. In gender, both males and females had the similar distribution of the utilization. The number of men under the age of 64 was more than that of the 65 years of age or older. Otherwise, the number of women is concentrated in the 65 years of age or older.Conclusion: : Our results showed that the utilization of MPS then CA one year before patients of CAD received percutaneous coronary dilatation was 18.90% that accounted for only about 20 percent of the number of the patients of CAD that received percutaneous coronary dilatation, and practical aspects of the existence of a significant gap. Furthermore, the number of the hospitals with nuclear medicine is less than those with cardiac catheterization. It is worth to set up the department of nuclear medicine to provide the MPS in patients with suspected CAD to get accurate diagnosis and the favorable therapy.