RESEARCH ARTICLE |
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Year : 2014 | Volume
: 2
| Issue : 2 | Page : 9 |
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Conus artery in coronary CT angiography
Agnieszka Mlynarska1, Rafal Mlynarski2, Maciej Sosnowski3
1 Unit of Noninvasive Cardiovascular Diagnostics, Medical University of Silesia; Department of Electrocardiology, Upper Silesian Cardiology Center; Unit of Internal Nursing, Medical University of Silesia, Katowice, Poland 2 Unit of Noninvasive Cardiovascular Diagnostics, Medical University of Silesia; Department of Electrocardiology, Upper Silesian Cardiology Center, Katowice, Poland 3 Unit of Noninvasive Cardiovascular Diagnostics; Division of Cardiology, Medical University of Silesia, Katowice, Poland
Correspondence Address:
Agnieszka Mlynarska Unit of Noninvasive Cardiovascular Diagnostics, Unit of Internal Nursing and Department of Electrocardiology, Upper Silesian Cardiology Center, Medical University of Silesia, Katowice Poland
Source of Support: None, Conflict of Interest: None
DOI: 10.5812/acvi.19641
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Background: The conus artery is usually the first branch of the right coronary artery (RCA) and passes around the right ventricular outflow tract.
Objectives: To examine whether it is possible to visualize the conus artery in multi-slice computed tomography (CT).
Patients and Methods: In 79 consecutive patients (aged 56 ± 12.9 years; 13 women), 64-slice CT was performed due to a suspicion of coronary artery disease. The standard protocol for scanning with retrospective gating was used for all the patients.
Results: It was possible to visualize the conus artery in coronary CT angiography in 64 (81%) patients. The course of the conus artery in the right ventricle was commonly in the outflow tract direction. The conus artery was visualized at a distance of 33.2 ± 16.3 mm. The average diameter of the conus artery was 2.3 ± 0.8 mm. The conus artery most frequently originated from the first segment of the right coronary artery (53%) and directly from the aorta (37.9%). In the rest of the cases, there was a common trunk for both vessels (CA/RCA).
Conclusions: In most cases, the conus artery can be visualized in cardiac CT. A description of the conus artery should be a part of the standard clinical coronary CT angiography description.
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