The Role of Coronary Computed Tomography Angiography in Detecting Coronary Artery Stenosis

Year 2025, Volume: 12 Issue: 2, 99 - 104, 28.08.2025

Halil Serdar Aslan , Çetin Çelenk , Kadir Han Alver

https://doi.org/10.47572/muskutd.1605140

Abstract

The aim of this study is to evaluate the role of Coronary Computed Tomography Angiography, a minimally invasive imaging method, in detecting coronary artery stenosis. This study retrospectively analyzed the coronary artery segments of 66 patients who underwent both Conventional Coronary Angiography and Coronary Computed Tomography Angiography at Ondokuz Mayıs University Hospital between May 2005 and November 2007. These patients were referred with indications such as angina pectoris, stent evaluation, or suspected coronary artery disease. Coronary artery segments were categorized into proximal, mid, and distal groups using the classification system defined by the American Heart Association. The degree of stenosis was evaluated based on the following classification: mild (1–49%), significant (50–74%), advanced (75–99%), and total occlusion (100%). The data obtained from Coronary Computed Tomography Angiography were retrospectively compared with the findings from Conventional Coronary Angiography. According to these findings, the sensitivity and specificity of Coronary Computed Tomography Angiography across all groups were calculated as 87% and 97%, respectively. Atherosclerotic changes in proximal segments led to a decrease in specificity, while difficulties in assessing distal segments resulted in reduced sensitivity. These results demonstrate that Coronary Computed Tomography Angiography, as supported by the literature, is a promising alternative method for detecting coronary artery stenosis. With advancements in technology, it is poised to become an effective tool for diagnosing coronary artery disease, which is rapidly increasing in prevalence in industrialized societies, and for screening asymptomatic patients who are at risk.

Keywords

Stenosis , Conventional Coronary Angiography , Coronary Computed Tomography Angiography

Ethical Statement

In our study, data collected prior to 2020 were used, and ethical approval was not obtained as the study was derived from doctoral research. A signed declaration stating that ethical approval was not required has been uploaded to the system.

Koroner Arter Darlıklarının Saptanmasında Koroner Bilgisayarlı Tomografi Anjiyografinin Rolü

Abstract

Bu çalışmanın amacı koroner arter darlıklarının saptanmasında minimal invaziv bir görüntüleme yöntemi olan Koroner Bilgisayarlı Tomografi Anjiografi’nin rolünü değerlendirmektir. Çalışma Mayıs 2005 ve Kasım 2007 tarihleri arasında Ondokuz Mayıs Üniversitesi Hastanesinde Anjina pektoris, stent kontrolü, koroner arter hastalığı şüphesi olan hem Konvansiyonel Koroner Anjiografi hem de Koroner Bilgisayarlı Tomografi Anjiografi yapılmış 66 hastanın koroner arter segmentleri darlık yönünden retrospektif değerlendirmeye alındı. Koroner Bilgisayarlı Tomografi Anjiografi ile koroner arter segmentleri American Heart Association sınıflaması kullanılarak proksimal, orta ve distal gruplara ayrıldı. Darlık düzeyleri hafif (%1-49), anlamlı (%50-74), ileri (%75-99) ve oklüzyon (%100) sınıflaması ile değerlendirildi. Elde edilen veriler Konvansiyonel Koroner Anjiografi sonuçları ile retrospektif olarak karşılaştırıldı. Bu verilere göre tüm gruplarda Koroner Bilgisayarlı Tomografi Anjiografi’nin duyarlılığı %87, özgüllüğü %97 olarak hesaplanmıştır. Proksimal segmentlerdeki aterosklerotik değişiklikler özgüllüğün azalması, distal segmentlerin değerlendirilmesindeki güçlük ise duyarlılığın azalması olarak yansımıştır. Bu bulgularla; koroner arter darlıklarının saptanmasında, yapılan çalışmalarda desteklemekte ki Koroner Bilgisayarlı Tomografi Anjiografi, gelişen teknoloji ile birlikte, endüstriyel toplumlarda yaygınlığı hızla artan koroner arter hastalıkları tanısında ve risk altındaki asemptomatik hastaların taranmasında alternatif bir yöntem olmaya adaydır.

Keywords

Darlık , Konvansiyonel Koroner Anjiografi , Koroner Bilgisayarlı Tomografi Anjiografi

Ethical Statement

Çalışmamızda, 2020 öncesinde toplanan veriler kullanılmıştır ve çalışma, tıpta uzmanlık tezi araştırmasından türetilmiş olduğundan etik onay alınmamıştır. Etik onayın gerekliliği olmadığına dair imzalı bir beyan, sisteme yüklenmiştir.

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