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Segmentation and Linear Measurement for Body Composition Analysis using Slice-O-Matic and Horos

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Linea alba 3D morphometric variability by CT scan exploration.

P Gueroult^1,2, V Joppin³, K Chaumoitre^4,5

¹Laboratoire de Biomécanique Appliquée, Aix Marseille Univ, IFSTTAR UMR T24, Marseille, France. gueroult.pierre@gmail.com.

Hernia : the Journal of Hernias and Abdominal Wall Surgery

|January 4, 2024

Summary

This summary is machine-generated.

This study reveals the Linea alba

Keywords:

3D reconstruction Anatomy CT scan Linea alba Sagitta

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Area of Science:

Anatomy
Medical Imaging
Biomedical Engineering

Background:

The Linea alba's width, often measured by inter-rectus distance, is a significant risk factor for incisional hernias and their recurrence.
Previous anatomical descriptions of the Linea alba were limited, lacking detail on width, location variability, and curvature.

Purpose of the Study:

To conduct a comprehensive 3D anatomical analysis of the Linea alba.
To emphasize and document the anatomical variations of the Linea alba across diverse demographics.

Main Methods:

Utilized open-source software for 2D sagittal plane and 3D reconstructions from 117 patient CT scans.
Measured Linea alba length, curvature (sagitta), and continuous width.
Assessed variations in relation to demographic factors and body mass index (BMI).

Main Results:

The Linea alba exhibits a rhombus shape, with maximum width (4.4 ± 1.9 cm) at the umbilicus, wider above than below.
Linea alba length (37.5 ± 3.6 cm) increased with BMI and was shorter in women.
Width increased with age and BMI; curvature (sagitta) was greater in obese individuals and with age.

Conclusions:

This study offers an exhaustive 3D anatomical description of the Linea alba, including novel insights into its curvature.
The 3D reconstruction method provides patient-specific anatomical details of the Linea alba.
Further research is warranted to correlate these 3D anatomical findings with pathologies like hernias and diastasis recti.