Document Detail

Prevalence and types of main and right portal vein branching variations on MDCT.
MedLine Citation:
PMID:  16928929     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: Our objective was to investigate the prevalence of variant main and right portal vein ramification in a large group of patients. SUBJECTS AND METHODS: The study group consisted of 200 patients who underwent consecutive contrast-enhanced abdominal CT examinations performed with an 8-MDCT scanner. Two observers evaluated both thin axial sections and 3D maximum-intensity-projection and volume-rendered images for branching patterns of the main and right portal veins. RESULTS: Conventional main portal vein anatomy was present in 64.5% of the patients. In 9.5% of the patients, the main portal vein trifurcated into the left portal and right anterior and posterior portal veins. In 23.5% of the patients, the main portal vein divided into a common left portal vein-right anterior portal vein trunk and the right posterior portal vein. Three patients (1.5%) had miscellaneous variations. Twenty-two (16.8%) of 131 patients with conventional main portal vein branching had variant right portal vein branching, most of which was a trifurcation, followed by an abnormally proximal origin of the segment VII vein from the right portal vein. CONCLUSION: Variant main portal vein branching seems to be very frequent. Common right anterior portal vein-left portal vein trunk is far more common than trifurcation. Although less frequent, variations also occur in right portal vein branching.
Cetin Atasoy; Elif Ozyürek
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  AJR. American journal of roentgenology     Volume:  187     ISSN:  1546-3141     ISO Abbreviation:  AJR Am J Roentgenol     Publication Date:  2006 Sep 
Date Detail:
Created Date:  2006-08-24     Completed Date:  2006-09-12     Revised Date:  2008-02-15    
Medline Journal Info:
Nlm Unique ID:  7708173     Medline TA:  AJR Am J Roentgenol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  676-81     Citation Subset:  AIM; IM    
Department of Radiology, Ankara University Medical School, Ibn-i Sina Hospital, Sihhiye 06100, Ankara, Turkey.
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MeSH Terms
Aged, 80 and over
Congenital Abnormalities / epidemiology
Middle Aged
Portal Vein / abnormalities*,  radiography*
Tomography, X-Ray Computed
Comment In:
AJR Am J Roentgenol. 2007 May;188(5):W492; author reply W493   [PMID:  17449751 ]

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