Study of Morphological Characteristics of Calcified Plaques and Luminal Stenosis of Coronary Artery at 64-slice Computed Tomographic Coronary Angiography
10.3969/j.issn.1002-1671.2010.04.008
- VernacularTitle:不同形态冠状动脉钙化与冠状动脉狭窄的多层螺旋CT相关性研究
- Author:
Jinguo Lü
;
Bin LU
;
Xiang TANG
;
Xiongbiao CHEN
;
Zhihui HOU
;
Shihang JIANG
;
Ruping DAI
;
Yongjian WU
;
Shubin QIAO
;
Yuejin YANG
- Publication Type:Journal Article
- Keywords:
heart;
coronary artery calcification;
coronary heart disease;
tomography,X-ray computed
- From:
Journal of Practical Radiology
2010;26(4):485-491
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the correlation between morphological characteristics of coronary artery calcified plaques and luminal stenosis of local coronary artery segments with 64-slice computed tomography.Methods One hundred and eleven patients who had undergone 64-slice computed tomographic coronary angiography(CTCA)and conventional coronary angiography(CAG)were retrospectively analyzed.The calcified plaques were classified as punctate,nodular,strip-like and nubbly in long-axis view of coronary artery lumen,and were classified as crescent,semilunar,round moon and circinate in short-axis view.The morphologic characteristics of these calcified plaques on CTCA were retrospectively analyzed and compared with luminal stenosis of CAG results.Results Among 528 calcified coronary segments which were analyzed in 111 patients,there were 383(72.5%)punctate calcified plaque segments and 145(27.5%)of non-punctate plaques.There were 34(23.4%,34/145)non-punctate calcified plaques which caused severe stenosis(≥75%),including 4(11.8%)nodular,8(23.5%)stripe-like and 22(64.7%)nubbly calcified plaques on the long-axis view,and 0(0.0%)cresent,8(23.5%)semilunar,18(52.9%)round moon and 8(23.5%)circinate calcified plaques on the short-axis view.The ratios of different morphological coronary artery calcifications which caused severe stenoses were significantly different with each other(all P＜0.01).Conclusion Different figures of coronary artery calcified plaques demonstrate different degrees of stenoses of local coronary artery lumen.Severe stenoses were mostly caused by nubbly calcified plaque on long-axis view,round moon and circinate calcified plaque on short-axis view.
