Normal Variation of Right Gastric Artery Origin on Abdominal Angiogram.
10.3348/jkrs.1997.37.3.443
- Author:
Hyoung Seuk KIM
1
;
Yun Hwan KIM
Author Information
1. Department of Diagnostic Radiology, Anam Hospital, Korea University Medical Center.
- Publication Type:Original Article
- Keywords:
Arteries, gastric;
Angiography;
Normal variants
- MeSH:
Angiography;
Angiography, Digital Subtraction;
Arteries*;
Hepatic Artery;
Humans;
Mesenteric Artery, Superior
- From:Journal of the Korean Radiological Society
1997;37(3):443-447
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To evaluate the normal variations in the origin of the right gastric artery (RGA), as seen on abdominal angiogram. MATERIALS AND METHODS: Four hundred and twenty-six patients underwent celiac and superior mesenteric arteriogram, and in 154, the origin of the RGA was identified (M:F=116:38 ; mean age, 56 years ; range, 6-84 years). Digital subtraction angiography were performed in 101 patients, and conventional angiography in 53 ; we thus evaluated the origin of the RGA, normal variation of the hepatic artery, and the relationship between them. RESULTS: The origin of the RGA was the proper hepatic artery (PHA) in 43% of cases (n=67), the left hepaticartery (LHA) in 41% (n=63), the common hepatic artery (CHA) in 9% (n=14), the right hepatic artery (RHA) in 4% (n=6),and the gastroduodenal artery (GDA) in 3% (n=4). of these 154 patients, 126 (82%) showed a normal hepatic artery branching pattern, with both hepatic arteries arising from the PHA ; in 18 patients (12%), the RHA arose from the superior mesenteric artery (SMA), and in 6 patients (4%), the LHA arose from the left gastric artery (LGA). In 4 patients (3%), other branching patterns of the hepatic artery were noted. In 16 of 18 patients (89%) whose RHA arose from the SMA, the RGA originated in the LHA ; in the other two, the RGA arose from the GDA and CHA, respectively. CONCLUSION: In 43% of cases, the main site from which the RGA originated was the PHA, and in 41%, the LHA, as seen on abdominal angiogram. Where the RHA arose from the SMA, its most frequent site of origin, seen in 89% of cases, was the LHA. The exact recognition of the origin of the RGA, as seen on abdominal angiogram, could lead to a reduction of transarterial chemoembolization-related gastric complications.
