Interactive OCT and CT image fusion module for clinical otology

Anatomy and pathology

Optical coherence tomography (OCT) is a promising imaging modality for clinical otology. It produces real-time, high-resolution transcanal, transtympanic images of the middle ear (ME) with high soft-tissue contrast. However, its diagnostic applications in otology are limited by its field of view (FOV) and shadowing artifact.

This web-based interactive educational module on temporal bone and middle ear anatomy addresses this gap by offering users a platform to familiarize themselves with both the normal anatomy of the middle ear and a selection of pathological cases by the courtesy of Dr. David P Morris and Dr. Nael Shoman, including trauma and cholesteatoma, as observed through in-vivo imaging at our clinic. This module showcases an image fusion technique that augements standard computerized tomography (CT) and OCT for improved clinical interpretation. This results in a composite image that combines the wide FOV and excellent boney delineation of CT with the high resolution and soft-tissue contrast of OCT for better ME images than with either modality alone.

Exploration of middle ear anatomy

A 3D anatomical journey

In this interactive 3D rendering of middle ear OCT images (case by the courtesy of Dr. Robert Adamson), you're invited to navigate and explore the anatomical structures within. Here, one can appreciate the delicate features and intricate arrangement of those structures, including the tympanic membrane (eardrum), ossicles (tiny bones), and the promontory (bony protrusion).