Journal article
Assessment of anatomical variation of coronary arteries for sudanese patients using cardiac computed tomography angiography


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Publication Details
Author list: Salem Saeed Alghamdi, Rowa Aljondi, Ikhlas Abdelaziz, Mohamed Yousef, Mustafa Z. Mahmoud, Mugtaba Elgazali, and Abdulrahman Tajaldeen
Publication year: 2020
Journal: International Journal of Biomedicine
Journal name in source: International Journal of Biomedicine
Journal acronym: IJBM
Volume number: 10
Issue number: 2
Start page: 101
End page: 103
Number of pages: 3
ISSN: 2158-0510
Web of Science ID: 000541989800002
PubMed ID:
Scopus ID: 85101288682
eISSN: 2158-0529


Background: The aims of this study were to assess the prevalence of anatomical variation of coronary arteries among
Sudanese patients using cardiac computed tomography angiography (CTA) and to identify the pathological finding for patients
undergoing cardiac CTA.
Methods and Results: This prospective cohort study was conducted with 87 Sudanese patients subjected to cardiac CTA
examination, using a 64-slice CT scanner (Aquillon 64, Toshiba Medical Systems, Tochigi, Japan) with retrospective ECG gating.
Data were collected from 3D reconstruction at optimal phase. The numbers of diagonal and obtuse marginal branches were
counted. The presence of ramus intermedius and origination of the right coronary artery (RCA) from right coronary sinus (RCS)
were also reported.
Findings showed that most patients had one (33.3%) or two (47.1%) diagonal artery branches. In addition, 3.4% of patients
had no diagonal branches, 12.6% had three and 3.4% had more than three diagonal branches arising from the left anterior descending
artery (LAD). About 8% of our patients had no obtuse marginal branch. The majority of patients had one, two and three branches
of the obtuse marginal arising from a left circumflex artery, which amounted to 24.1%, 41.4% and 25.3%, respectively. Only one
patient had more than three obtuse marginal branches. Furthermore, 94.3% of patients presented with RCA originating from RCS,
and 5.7% of patients had an ectopic origin of the left coronary artery (LCA).
Conclusion: This study concluded that there is a wide variation in the number of diagonal and obtuse marginal branches
arising from the left circumflex artery among Sudanese patients. Ramus intermedius was the most common anatomical variation
affecting the coronary artery. Ectopic origination of the RCA is a very rare condition in Sudanese patients.


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Last updated on 2021-14-03 at 09:41