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Dissection, digitization, and three-dimensional modelling: a high-fidelity anatomical visualization and imaging

Takamitsu Arakawa¹, Emma Campisi², John Tran²

¹Department of Rehabilitation Sciences, Kobe University Graduate School of Health Sciences, 7-10-2, Tomogaoka, Suma-Ku, Kobe, 654-0142, Japan.

Anatomical Science International

|May 15, 2023

Summary

A new 3D modeling technique precisely maps skeletal muscle architecture, including fiber bundles and attachments. This method enhances anatomical understanding and clinical applications by visualizing complex in situ muscle structures.

Keywords:

Digitization Flexor digitorum superficialis Muscle architecture Muscle modelling Muscle morphology

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Area of Science:

Anatomy
Biomedical Engineering
Computational Biology

Background:

Technological advancements over 25 years have enabled novel methods for tissue analysis.
Understanding skeletal muscle architecture in situ is crucial for anatomical and clinical studies.

Purpose of the Study:

To present a novel three-step methodology for high-fidelity 3D modeling of skeletal muscle and associated neurovascular structures.
To demonstrate the application of this technique using a flexor digitorum superficialis specimen.

Main Methods:

Serial dissection and digitization to collect Cartesian coordinate data of muscle tissues.
Construction of high-fidelity 3D models from coordinate data to represent in situ spatial arrangements.
Development of computational methods to quantify 3D architectural parameters like fiber length and pennation angle.

Main Results:

Successful generation of detailed 3D models capturing the spatial arrangement of contractile and connective tissue elements.
Accurate quantification of muscle architectural parameters in three-dimensional space.
Demonstration of high-fidelity outcomes using a flexor digitorum superficialis specimen.

Conclusions:

The dissection, digitization, and 3D modeling methodology offers a unique approach to studying muscle architecture in situ.
This technique facilitates detailed analysis of fiber bundle arrangements and their attachments.
Successful knowledge translation from laboratory findings to clinical settings has been achieved.