Article Dans Une Revue Clinical Anatomy Année : 2024

Three-dimensional reconstruction of King Henri IV s paranasal sinuses and mastoid cells

Résumé

Purpose: The preserved head of King Henri IV of France (life 1553-1610, reign 1589-1610) has survived to the present day thanks to high-quality embalming and favorable conservation conditions. The aim of this study was to examine Henry IV s upper resonant cavities and mastoids using an original and innovative forensic three-dimensional segmentation method. Methods: The paranasal sinuses and mastoid cells of King Henri IV of France were studied by cross-referencing available biographical information with clinical and flexible endoscopic examination and computed tomography (CT-scan) imaging. The paranasal sinuses and mastoid cells were delineated and their volumes were assessed using ITK-SNAP 4.0 software (open-source). Graphical representations were created using Fusion 360® (Autodesk Inc., San Rafael, CA, USA) and MeshMixer® (Autodesk Inc., San Rafael, CA, USA). Results: Paranasal sinus tomodensitometry revealed abnormalities in shape and number. Henri IV of France suffered from sinus aplasia. Neither the left sphenoid nor left frontal sinus contrasted sharply, and a remarkable pneumatization of the right clinoid processes extended throughout the height of the right pterygoid process. The total volumes of Henri IV s mastoid air-cells were estimated at 27 and 26 mL, respectively, for the right and left sides, exceeding the normal mean and the maximum of modern subjects by a wide margin. No sign of chronic ear or sinus condition was found. Conclusions: An innovative method has been developed in forensic medicine to establish hypotheses about the growth and respiratory conditions of the face.

Dates et versions

hal-04724692 , version 1 (07-10-2024)

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Robin Baudouin, Angélique Amelot, Isabelle Huynh-Charlier, Quentin Lisan, Stéphane Hans, et al.. Three-dimensional reconstruction of King Henri IV s paranasal sinuses and mastoid cells. Clinical Anatomy, 2024, ⟨10.1002/ca.24172⟩. ⟨hal-04724692⟩
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