Variations in origin of middle hepatic artery, a CT angiographic study

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Title	Variations in origin of middle hepatic artery, a CT angiographic study
Authors	Stuti Tandon¹, Garima Sehgal², Manjari Lohani³, Raveendra Singh Rajpoot⁴*, Deepanshu Shukla⁵, Rehan Ahmed⁴ & Saket Kumar⁴
Affiliation	¹Department of Anatomy, Integral Institute of Medical Sciences and Research, Integral University, Lucknow, India; ²Department of Anatomy, King George's Medical University, Lucknow, India; ³Department of Anatomy, Prasad Institute of Medical Sciences, Lucknow, India; ⁴Department of Radiodiagnosis, Dr. K. N. S. Memorial Institute of Medical Sciences, Barabanki, Uttar Pradesh, India; ⁵Department of Anatomy, T. S. Misra Medical College and Hospital, Lucknow; *Corresponding author
Email	Stuti Tandon - E-mail: tandondrstuti@gmail.com Garima Sehgal - E-mail: garimasehgal@kgmcindia.edu Manjari Lohani - E-mail: manjari.lohani@gmail.com Raveendra Singh Rajpoot - E-mail: drrsrajpoot@yahoo.com Deepanshu Shukla - E-mail: dr.deepanshushukla@gmail.com Rehan Ahmed - E-mail: dr.rehan_ahmed@yahoo.com Saket Kumar - E-mail: saketlko@yahoo.com
Article Type	Research Article
Date	Received October 1, 2025; Revised November 15, 2025; Accepted November 15, 2025, Published November 15, 2025
Abstract	A detailed understanding of hepatic arterial and portal venous anatomy is essential for liver-centric therapies and surgical procedures, especially transplantation. This cross-sectional CT angiographic study was conducted on 50 subjects (12–75 years) at King George’s Medical University, Lucknow. The proper hepatic artery divided into Right Hepatic Artery (RHA) and Left Hepatic Artery (LHA) in 93.1% of cases, while trifurcation was rare (4%); overall, 42% showed arterial variations. The middle hepatic artery (MHA) most commonly arose from the LHA (44.7%) or RHA (31.9%), with dual arterial supply to segment IV in 6% of cases. Identifying these variations through CT angiography is crucial for preoperative planning to optimize surgical outcomes and reduce complications.
Keywords	HAS variations, CT angiography, left hepatic artery, right hepatic artery, middle hepatic artery, hepatic artery proper
Citation	Tandon et al. Bioinformation 21(11): 4260-4266 (2025)
Edited by	Neelam Goyal & Shruti Dabi
ISSN	0973-2063
Publisher	Biomedical Informatics
License	This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.