Title: Primary study on the immediate change of myocardial perfusion after PCI using selective myocardial contrast echocardiography in coronary diseases
Abstract: Objective To explore the immediate change of myocardial perfusion after percutaneous coronary intervention (PCI) using selective myocardial contrast echocardiography (MCE) in patients with coronary diseases. Methods Contrast pulse sequencing (CPS) MCE with contrast agent SonoVue via coronary route was performed in 14 patients with coronary diseases before PCI, and immediately after PCI. The myocardial imaging effects were compared; and segmental microvascular blood flow minivalue was calculated with the CUSQ off-line software. Results Clear images of myocardium were obtained immediately after injecting contrast agent into coronary arteries. Contrast imaging of the left ventricle and myocardium were well displayed in all the patients. Among the 14 patients, coronary arteries were reopened in 12, and still occlusive in the remaining 2. Before PCI, 13 patients had decreased perfusion in the segments of stenotic/occlusive coronary arteries, and 1 had good collateral circulation on angiogram and good perfusion on MCE. In the 12 patients who had successful PCI, MCE displayed immediate improvement of perfusion of infracted segment in 11 patients compared with preoperation (P0.05); only 1 had no significant change. Myocardial segmental microvascular blood flow minivalue also increased after PCI. Conclusions PCI therapy can improve the myocardial microcirculation immediately and effectively; and selective CPS MCE can reveal the reperfusion status of myocardium precisely, rapidly and effectively.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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