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Segment IV hepatic artery in potential donors for living related liver transplantation: Evaluation with
Rashed Nazer1, Ahmed Kamal Nasir Khan1, Awais Ahmed1
1Shifa International Hospital, Islamabad.
Insights
Multi-detector computed tomography angiography effectively evaluated segment IV hepatic arterial anatomy and its variations in potential liver donors. This non-invasive technique identified normal and aberrant arterial patterns crucial for transplant evaluations.
Area of Science:
- Radiology
- Vascular Anatomy
- Transplant Surgery
Background:
- Accurate anatomical knowledge of the liver's segment IV arteries is critical for successful liver transplantation.
- Variations in hepatic arterial anatomy can pose significant risks during surgical procedures.
Purpose of the Study:
- To evaluate the anatomical variations of the segment IV hepatic artery in potential liver donors.
- To assess the utility of multi-detector computed tomography (MDCT) in visualizing these variations.
Main Methods:
- Retrospective analysis of 455 potential liver donor CT scans performed between January 2012 and June 2017.
- Two experienced radiologists independently analyzed MDCT images for segment IV artery origin and variations.
- Classification of segment IV artery origins into six types based on their anatomical source.
Main Results:
- A total of 455 potential donors (65.7% male) were analyzed.
- Normal segment IV arterial anatomy was observed in 68.8% of cases (313/455).
- Aberrant or variant anatomy was present in 31.2% of cases (142/455), with origins from the left hepatic artery being most common (62.6%).
Conclusions:
- MDCT angiography is a rapid, reliable, and non-invasive method for assessing segment IV hepatic arterial anatomy.
- The study highlights the prevalence of anatomical variations, emphasizing the importance of pre-operative imaging in liver donor assessment.
Objective:
To assess segment IV hepatic arterial anatomy and its variation on multi-detector computed tomography in potential liver donors.
Methods:
The retrospective study was conducted at Shifa International Hospital, Islamabad and comprised data of potential liver transplant donors related to the period between January 2012 and June 2017. Computed tomography scans were performed using multi-detector scanners. Images were transferred to work station for postprocessing and were analysed regarding the origination and variation of the arteries by two independent experienced radiologists.
Results:
Of the 455 patients whose records were evaluated, 299(65.7%) were males and 156(34.3%) were females. Six types of segment IV artery were defined based on their points of origin: left hepatic artery 285(62.6%), right hepatic artery 111(24.4 %), proper hepatic artery 9(1.8 %), common hepatic artery 29(6.4%), gastro duodenal artery 3(0.7 %), and dual 18(4.1 %).313 of total cases (68.8%) had normal anatomy with no variation. Those with aberrant/variant anatomy constituted 142(31.2%) of the total.
Conclusions:
Multi-detector computed tomography angiography was found to be a fast, reliable and non-invasive technique that could evaluate normal as well as anatomical variants of segment IV arteries.
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