CCTA를 이용한 관상동맥 협착과 석회화의 상관관계 분석
Correlation Analysis Between Stenosis and Calcification of Coronary Artery with Using CCTA
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본 연구는 관상동맥질환의 위험인자 중 성별, 연령별 협착률과 혈관 협착과 석회화와의 상관관계를 분석하기 위해 조사대상병원에서 조사 기간 동안 CCTA를 시행한 대상자 586명의 관상동맥의 협착률과 석회화의 유무를 조사하였다. 전체 대상자 중 협착이 있는 사람은 299명으로 이 중 남성 166명(28%), 여성 133명(23%)이었다. 50~70대가 협착이 있는 자의 246명(82.6%)으로 대부분을 차지하였다. 1개의 혈관이상에서 협착률이 50%가 넘는 협착이 있는 자는 299명 중 남성은 60대에서 43명(33.9%), 여성은 70대에서 39명(37.5%)으로 나타났다. Vessel score가 2점 이상 되는 경우가 70% 이상 협착이 있는 자 139명 중에 70명(50.1%)이었고 남성은 60대가 32명(39.5%), 여성은 70대가 27명(46.6%)으로 나타났다. 특징적인 것은 70대에서 Vessel score가 3점이 되는 경우가 14명으로 다른 연령대보다 2~5배까지 많은 결과를 볼 수 있었다. LAD가 77.6%, LCX가 47.5%, RCA가 60.5%의 협착 빈도를 나타내었고 삼중혈관병변(Triple vessel disease)은 남성이 15명(36.6%), 여성이 13명(56.5%)으로 남녀 모두 70대에서 가장 높은 빈도를 나타내었다. 협착이 있는 그룹에서는 196명(33.4%)이 석회화가 있었고, 관상동맥 협착이 없는 그룹에서는 40명(6.8%)만이 석회화가 있었다. 이것은 관상동맥의 협착에 석회화가 절대적인 영향을 미친다고는 볼 수 없지만, 상당히 연관성이 있다고 할 수 있겠다.
Abstract
We surveyed 586 patients who had been examined CCTA. Out of those patients, 299 (52%) has stenosis of coronary arteries; 166 males (28%) and 133 females (23%). Among them 246 stenosis patients (82.6%) are in 50's to 70's. The number of patients with 50% or more stenosis in more than 1 coronary artery is 299 including 43 males (33.9%) in their 60's and 39 females (37.5%) in their 70's. When a vessel score is higher than 2 points, 70 patients (50.1%) among 139 have 70% or more stenosis; 32 males (39.5%) in their 60's and 27 females (46.6%) in their 70's. It is noted that 14 patients in their 70's show more cases compared to other ages up to 2 or even 5 times when a vessel score is 3 points. LAD shows 77.6% of stenosis, LCX 47.5% and RCA 60.5%. Frequency of a triple vessel disease is high for patients in their 70's; 15 males (36.6%) and 13 females (56.5%) for both. 196 people (33.4%) in the group with stenosis have calcification, while only 40 (6.8%) in the group without stenosis have it. It means that calcification has a significant, if not absolute, correlation with stenosis of coronary arteries.
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