CC BY-NC-ND 4.0 · The Arab Journal of Interventional Radiology 2018; 02(03): S19
DOI: 10.1055/s-0041-1730696
Abstract

Understanding the Internal Iliac Artery Branching System Using Yamaki Classification

Ibrahim Abulaziz Alghamdi
King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
,
Randa Hussien Alyafeai
King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
,
Junaid Islam
King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
,
Majed Ahmed Ashour
King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
,
Zia Zergham
King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
› Author Affiliations

Background: Understanding the internal iliac artery (IIA) anatomy is paramount in interventional radiology daily practice with the paradigm shift toward endovascular management of various emergency and elective procedures in male pelvis. In 1998, Yamaki et al. established a modified classification system for the IIA anatomy based on the branching pattern of three major arteries: superior gluteal artery (SGA), inferior gluteal artery (IGA), and internal pedundal artery (IPA). Group A was found in 60%–80% of populations, Group B in 15%–30%, Group C in 5%–7%, and Group D in only 0.2%. The purpose of our study is to review the IIA branching anatomy in Arab population using the same classification system and compare it with the internationally published numbers. Methods: A total of 50 thin collimated computed tomography angiograms of healthy male kidney donors, aged between 17 and 47 years (median 27), were evaluated. A hundred pelvic halves were studied individually with and without three-dimensional reformats of the IIAs for the branching pattern applying Yamaki classification system. In Group A, the IGA and IPA make a common trunk (anterior division) while the SGA forms the posterior division. In Group B, the posterior division is formed by a common trunk between the SGA and IGA while the IPA forms the anterior division. The IIA trifurcates into those three major vessels in Yamaki Group C. Finally, in Group D, the SGA and IPA form a common trunk as the anterior division while the IGA forms the posterior division. Results: Among the evaluated 100 IIAs, Yamaki Group A was found in 79%, Group B in 14%, and Group C in 7%. Group D pattern was not observed in our sample. Conclusion: The IIA branching pattern in Arab population in our study is similar to the Yamaki classification system, where group A is the most common followed by Group B and Group C.



Publication History

Article published online:
11 May 2021

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