Search results for "Virtual endoscopy"
showing 3 items of 3 documents
Virtual endoscopy of the inner ear and the auditory canal.
2000
To assess the role of virtual endoscopy (VE) in the examination of intracisternal structures and of the inner ear, we studied the anatomy of the labyrinth and internal auditory canal using the original CT slices and VE on the unaffected side in three female and three male patients, age range 3–46 years, with contralateral retrocochlear hearing loss. We also examined seven patients with different pathological findings. VE was performed using an advanced postprocessing program with high- resolution 3D data sets of CT (1–1.5 mm thickness, pitch 1.25) and MRI-CISS-3D (constructive interference in steady state) images of the basal cisterns (1.5 T, slice thickness 0.7–1 mm). VE provides an endosc…
Segmentation and virtual exploration of tracheobronchial trees
2003
Abstract The tracheobronchial tree as part of the lung is part of one of the most important organs of the human body. Inhaled air is distributed to the alveolus where oxygen and carbon dioxide exchange between air and blood takes place. In this paper, we introduce the virtual endoscopy system VIVENDI to perform virtual inspections of tracheobronchial trees based on their segmentation and of the complementing blood vessels. It is based on a hybrid segmentation pipeline which enables the segmentation of vascular and tracheobronchial structures down to the seventh generation of the bronchi.
Coloscopie virtuelle — par tomodensitométrie (CTDM) et résonance magnétique (CRM) — dans la détection des polypes coliques et des lésions néoplasiques
2005
Tant chez l’homme que chez la femme, le cancer colorectal (CCR) constitue la deuxieme cause de deces dans les pays occidentaux. Par consequent, le depistage du cancer colorectal et de ses precurseurs est un important probleme de sante publique. L’utilisation de la coloscopie par tomodensitometrie computee (CTDM) et par resonance magnetique (CRM), mieux connue sous l’appellation coloscopie virtuelle, rencontre un succes populaire croissant. Le present article a pour but de passer en revue les donnees de la litterature, d’etablir l’etat actuel de la coloscopie virtuelle, et de predire son impact potentiel sur la pratique actuelle et future en gastro-enterologie.