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

Halil Serdar Aslan; Çetin Çelenk; Kadir Han Alver

Article Details

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

Authors:

Halil Serdar Aslan | Çetin Çelenk | Kadir Han Alver

Publisher:

Mugla Sitki Kocman University

Main Topics:

İç Hastalıkları

Journal:

Muğla Sıtkı Koçman Üniversitesi Tıp Dergisi Vol.12 Issue 2, pp.99-104

Document Type:

Article

Publication Date:

8/2025

Document Language:

English

Document ID (Org No.):

2001357183

pISSN:

2148-8118

Keywords:

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 149, significant 5074, advanced 7599, 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.

 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 149, significant 5074, advanced 7599, 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.

 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 149, significant 5074, advanced 7599, 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.

 Bu çalışmanın amacı koroner arter darlıklarının saptanmasında minimal invaziv bir görüntüleme yöntemi olan Koroner Bilgisayarlı Tomografi Anjiografinin 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 Anjiografinin 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.

Article Details

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

Authors:

Halil Serdar Aslan | Çetin Çelenk | Kadir Han Alver

Publisher:

Mugla Sitki Kocman University

Main Topics:

İç Hastalıkları

Journal:

Muğla Sıtkı Koçman Üniversitesi Tıp Dergisi Vol.12 Issue 2, pp.99-104

Document Type:

Article

Publication Date:

8/2025

Document Language:

English

Document ID (Org No.):

2001357183

pISSN:

2148-8118

Stenosis

Conventional Coronary Angiography

Coronary Computed Tomography AngiographyDarlık

Konvansiyonel Koroner Anjiografi

Koroner Bilgisayarlı Tomografi Anjiografi

Issues

Article Details

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

Authors: Halil Serdar Aslan | Çetin Çelenk | Kadir Han Alver

Publisher: Mugla Sitki Kocman University

Main Topics: İç Hastalıkları

Journal: Muğla Sıtkı Koçman Üniversitesi Tıp Dergisi Vol.12 Issue 2, pp.99-104

Document Type: Article

Publication Date: 8/2025

Document Language: English

Document ID (Org No.): 2001357183

pISSN: 2148-8118

Stenosis

Conventional Coronary Angiography

Coronary Computed Tomography AngiographyDarlık

Konvansiyonel Koroner Anjiografi

Koroner Bilgisayarlı Tomografi Anjiografi

Issues

Authors:

Halil Serdar Aslan | Çetin Çelenk | Kadir Han Alver

Publisher:

Mugla Sitki Kocman University

Main Topics:

İç Hastalıkları

Journal:

Muğla Sıtkı Koçman Üniversitesi Tıp Dergisi Vol.12 Issue 2, pp.99-104

Document Type:

Article

Publication Date:

8/2025

Document Language:

English

Document ID (Org No.):

2001357183

pISSN:

2148-8118