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A novel automated solution

to measure aortic diameter

Augmented radiology for vascular aneurysm or ARVA aims to automate the assessment of maximum
diameter of the aorta. It is created and developed by surgeons from the Marie Lannelongue Hospital of
1
Paris, Saint-Joseph Hospital Group (Paris, France) in collaboration with Incepto, a European specialist in
artificial intelligence (AI) applied to the medical field. 1, 2

This new application is one of its kind in the world to fully automate the measurement of aortic
aneurysms and can effectively assist radiologists and vascular surgeons in the diagnosis and follow-up

of aneurysms. ARVA uses a dozen algorithms based on more than 1,000 scans annotated by experts
1, 2
and generates a pre-filled report that can be integrated into the radiologist's or surgeon’s workflow. 1, 2

Accurate measurements of aortic diameter requires thorough analysis of scans and is an extremely
time-consuming process. Such measurements are complicated too because the aorta often becomes
1, 2
tortuous in presence of an aneurysm. With this AI-based tool, diameter of the aorta can be measured
1, 2
precisely, thus helping a clinician to evaluate the possibilities of a surgery. 1, 2

ARVA automatically measures diameters per segment (S1 to S7) of the entire aorta, from its root near
the heart to its division into two iliac arteries in the abdomen. It provides a report including a
2
three-dimensional (3D) reconstruction of the aorta, a schematic representation of the aorta by segment,

stent detection, measurement of the largest diameter by segment and an oblique section of the largest
diameter detected. One of the major benefits of ARVA is the comparison of measurements between
1, 2
different scans and standardisation of the measurement that saves time of surgeons and radiologists. 2

The data of ARVA measurements on healthy and pathological aortas with and without stents have been

published in the European Journal of Vascular and Endovascular Surgery, showing a median deviation of
1.2 mm compared to the measurement performed by an expert. 2

Reference:

1) Researchers create novel solution for automatic measurement of maximum aortic diameter. Vascular News November 1, 2021. Accessed February 8, 2022.
https://vascularnews.com/researchers-announce-creation-of-arva/

2) Adam C, Fabre D, Mougin J, Zins M, Azarine A, Ardon R, d'Assignies G, Haulon S. Pre-surgical and Post-surgical Aortic Aneurysm Maximum Diameter
Measurement: Full Automation by Artificial Intelligence. Eur J Vasc Endovasc Surg. 2021 62(6):869-877. doi: 10.1016/j.ejvs.2021.07.013.