Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

The occurrence and distribution features of calcified nodules in coronary arteries determined by intravascular ultrasonography

XU Ying-jia, FANG Wei-yi, YANG Xiang-jun. Department of Cardiology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China  
Objective To investigate the imaging characteristics, the occurrence and the distribution features of coronary calcified nodules by using intravascular ultrasonography (IVUS). Methods Cardiac angiography and IVUS performed during the period from May 2008 to March 2010 were collected. A total of 516 arteries in 207 patients with complete clinical and imaging material were selected. The clinical data and imaging findings were analyzed. Results On IVUS the calcified nodules displayed as a protruded intravascular calcified patch with irregular surface. A total of 105 calcified nodules were detected in 86 vessels of 61 patients. The possible occurrence of coronary calcified nodules was 16% (86/516) for each artery and was 29% (61/207) for each patient. Multiple calcified nodules (≥ 2) occurred in one vessel was detected in 16 vessels with an incidence of 3% (16/516), and multiple nodules in one patient was found in 24 patients (12%, 24/207). The LAD calcified nodules were predominantly located between 0 and 40 mm from the. LAD ostium (84%, 32/38). Most LCX calcified nodules were located in segments between 0 and 40 mm(85%, 23/27). The RCA calcified nodules were evenly distributed in the entire course of RCA. The comparison of the clinical baselines showed that the patients with calcified nodules were slightly older than the patients without calcified nodules. Conclusion TVUS can clearly and accurately reveal the presence of the coronary calcified nodules. Clinically, the coronary calcified nodules are not uncommonly seen, and the lesions are mainly located at the proximal segments of LCA and at the entire course of RCA. The relationship between the presence of coronary calcified nodules and the occurrence of cardiac events needs to be clarified with further prospective studies. (J Intervent Radiol, 2011, 20: 606-609)
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved