Computer-aided analysis of orbital volume: a novel technique

Area of Science:

• Radiology
• Medical Imaging
• Ophthalmology

Background:

• Accurate volumetric analysis of the orbit is crucial for diagnosing and managing various orbital conditions.
• Existing methods for orbital volume measurement can be time-consuming and prone to variability.

Purpose of the Study:

• To evaluate the accuracy and efficiency of a novel software tool, Maxillo, for semiautomatic volumetric analysis of the orbit.
• To assess the software's performance regarding intraoperator, interoperator, and interscan variability.

Main Methods:

• The Maxillo software was used to analyze orbital CT datasets.
• Intraoperator error was assessed by repeated measurements by a single operator.
• Interoperator error was evaluated across three operators.
• Interscan variability was examined using scans from different CT scanners.
• Analysis time for 52 orbits was recorded.

Main Results:

• Low intraoperator error (0.08 cc) and interoperator error (0.18 cc) were observed.
• A trend towards increased error was noted for repeated scans on different CT scanners.
• The average analysis time per orbit was 138 seconds.

Conclusions:

• Maxillo is an accurate and efficient tool for semiautomatic orbital volume evaluation.
• The software demonstrates good reliability for analyzing nontraumatized orbits.