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Table 2 Definition of the morphological parameters

From: Reproducibility of image-based computational models of intracranial aneurysm: a comparison between 3D rotational angiography, CT angiography and MR angiography

Morphological parameter

Abbreviation

Definition

Size

The maximum perpendicular height of the IA

Aspect ratio

AR

The ratio of the maximum perpendicular height to the average neck diameter

Neck area

NA

The minimum area of the neck

Parent vessel diameter

PVD

The diameter of the parent vessel

Size ratio

SR

The ratio of maximum aneurysm height to the PVD

Aneurysm angle

AA

The angle of inclination between the aneurysm and its neck plane

Surface distance

SD

The symmetrical Hausdroff distance between two models