Évaluation d’un logiciel de reconstruction 3D à l’étude TDM des malformations de l’oreille moyenne

Truy, Éric; Bossard, Daniela S; Coudert, J; Aslam, Saima; Froehlich, Patrick; Trunde, F.; Disant, F.

doi:10.1016/j.aorl.2009.09.003

Cited by 1 publication

(1 citation statement)

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“…They also suggested middle ear 3D-visualisation using CT-data for surgical planning ( 14 ). Truy et al also mentioned image reconstruction method as a practical complement to classical CT images in evaluating constitutional abnormalities of the middle ear ( 15 ). Sun et al concluded that with proper approach, CT virtual endoscopy has the benefit of demonstrating ear ossicles and their connections, which is an excellent supplement of usual CT ( 16 ).…”

Section: Discussionmentioning

confidence: 99%

Comparison of Conventional Versus Spiral Computed Tomography with Three Dimensional Reconstruction in Chronic Otitis Media with Ossicular Chain Destruction

et al. 2016

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Background:Chronic otitis media (COM) can be treated with tympanoplasty with or without mastoidectomy. In patients who have undergone middle ear surgery, three-dimensional spiral computed tomography (CT) scan plays an important role in optimizing surgical planning.Objectives:This study was performed to compare the findings of three-dimensional reconstructed spiral and conventional CT scan of ossicular chain study in patients with COM.Patients and Methods:Fifty patients enrolled in the study underwent plane and three dimensional CT scan (PHILIPS-MX 8000). Ossicles changes, mastoid cavity, tympanic cavity, and presence of cholesteatoma were evaluated. Results of the two methods were then compared and interpreted by a radiologist, recorded in questionnaires, and analyzed. Logistic regression test and Kappa coefficient of agreement were used for statistical analyses.Results:Sixty two ears with COM were found in physical examination. A significant difference was observed between the findings of the two methods in ossicle erosion (11.3% in conventional CT vs. 37.1% in spiral CT, P = 0.0001), decrease of mastoid air cells (82.3% in conventional CT vs. 93.5% in spiral CT, P = 0.001), and tympanic cavity opacity (12.9% in conventional CT vs. 40.3% in spiral CT, P=0.0001). No significant difference was observed between the findings of the two methods in ossicle destruction (6.5% conventional CT vs. 56.4% in spiral CT, P = 0.125), and presence of cholesteatoma (3.2% in conventional CT vs. 42% in spiral CT, P = 0.172). In this study, spiral CT scan demonstrated ossicle dislocation in 9.6%, decrease of mastoid air cells in 4.8%, and decrease of volume in the tympanic cavity in 1.6%; whereas, none of these findings were reported in the patients' conventional CT scans.Conclusion:Spiral-CT scan is superior to conventional CT in the diagnosis of lesions in COM before operation. It can be used for detailed evaluation of ossicular chain in such patients.

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Section: Discussionmentioning

confidence: 99%