Hepatic artery classification based on three-dimensional CT
1Department of Biliary-Pancreatic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, China.
Insights
A new classification system for hepatic artery anatomy, called CRL, accurately identifies all variations using 3D visualization. This aids in precise surgical planning for liver procedures.
Area of Science:
- Anatomy
- Medical Imaging
- Surgical Planning
Background:
- Hepatic artery anatomy exhibits significant variation, complicating preoperative surgical planning in hepatobiliary-pancreatic surgery.
- Accurate classification is crucial for successful surgical outcomes.
Purpose of the Study:
- To investigate hepatic artery anatomical variations using 3D visualization and evaluation (3DVE).
- To develop a novel, comprehensive nomenclature system for hepatic artery classification.
Main Methods:
- Analysis of CT images from 770 adults using 3DVE to track hepatic artery origins and courses.
- Development of the CRL (Classification, Representation, and اللفظ) classification system based on arterial origins.
Main Results:
- The CRL classification system identified nine subtypes of hepatic artery variations.
- CRL classification demonstrated superior accuracy (100%) compared to existing systems (87.4-89.2%) in depicting hepatic artery variants in living-donor liver transplant donors.
- Validation against external datasets showed 99.6-100.0% classification accuracy with the CRL system.
Conclusions:
- The CRL classification system effectively encompasses diverse hepatic artery variants.
- This novel system offers improved precision for preoperative planning in liver surgery.
Background:
Precise classification of the hepatic artery is helpful for preoperative surgical planning in hepatobiliary-pancreatic surgery. However, the anatomy of hepatic arteries is variable. This study investigated anatomical variation using three-dimensional visualization and evaluation (3DVE) to develop a nomenclature system.
Methods:
The origin and course of the hepatic artery were tracked and analysed by using three-dimensional visualization of CT images acquired between 2013 and 2017. The new classification and nomenclature system, named CRL, was developed based on the origins of the common, right and left hepatic arteries.
Results:
Scans from 770 adults were evaluated. Preoperative 3DVE correlated better with surgical findings than the original CT images alone. Using the CRL classification system, hepatic arteries were divided into nine subtypes. Only 87·4-89·2 per cent of the hepatic arteries of 610 living-donor liver transplant donors were depicted in Michels', Hiatt's or Varotti's classification, compared with 100 per cent identified by the CRL classification. The CRL classification was validated against external data sets from previous studies, with 99·6-100·0 per cent of patients classified by the CRL system.
Conclusion:
The CRL classification covers hepatic artery variants and may be used for planning liver surgery.
More Related Videos
05:37Author Spotlight: A Non-Invasive Tool to Assess and Differentiate Fat Patterns in Liver Using 3D Dixon MRI
Published on: October 20, 2023
09:32Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging
Published on: December 9, 2021
Related Concept Videos
01:28Imaging Studies for Cardiovascular System V: CT
01:25Abdominal Aorta
The celiac trunk, a singular artery, divides into the left gastric artery, which...
01:11Overview of Systemic Arteries
Systemic circulation is the part of the cardiovascular system that carries oxygenated blood away from the heart to the body's tissues and returns deoxygenated blood back to the...