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Usefulness of Non EPI-DWI-MRI / CT 3D Static Co-registration Prior to Surgery of Cholesteatomas

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02903550
Recruitment Status : Unknown
Verified March 2018 by Assistance Publique Hopitaux De Marseille.
Recruitment status was:  Recruiting
First Posted : September 16, 2016
Last Update Posted : March 13, 2018
Information provided by (Responsible Party):
Assistance Publique Hopitaux De Marseille

Brief Summary:

Cholesteatoma is a destructive and expanding pathologic condition consisting of keratin pearl arising from a squamous epithelium in the middle ear and/or mastoid process. Evolution consists in a destruction of the ossicles as well as their possible spread through the base of the skull into the brain. Surgical treatment is required to prevent infectious or functional complications. A recurrence after surgery occurs in approximately 10% of patients and rarely affects initial site. Surgical treatment is the only care option for recurrent cholesteatoma. Various locations such as surgical approach cavity, mastoid, hypotympanum are seen. Temporal bone CT is performed prior to surgery for added information on bone erosions especially of ossicules, tegmen tympani, facial nerve canal of internal ear. Due high anatomical resolution and complex anatomy, temporal bone CT is usually displayed with Magnetic Resonance Imaging (MRI) in operating room to help surgical guidance .

Imaging especially using MRI is the cornerstone for diagnosis in asymptomatic patients. Since 2006, non echo planar imaging (EPI) Diffusion weighted imaging (DWI) Magnetic resonance imaging (MRI) (sequences has shown high accuracy to depict recurrent cholesteatoma. If EPI sequences had a high rate of diffeomorphic atefacts whereas non EPI sequences using either HAlf-Fourier acquisition Single-shot Turbo spin-Echo (HASTE) or Fast-spin-echo demonstrates less magnetic susceptibility artifacts. Multimodality fusion between NonEPI-DWI-MRI and computerized tomography (CT) is a rational promising tool to rise the performance for cholesteatomas delineation. The performances of NonEPI-DWI-MRI in assessing lesion spread and volume are still unknown and needs further investigations. The aim of the study is to assess the DWI-MRI/CT fusion feasibility, reproducibility and the accuracy prior to surgery propectively compared to surgical findings.

Condition or disease

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Study Type : Observational
Estimated Enrollment : 20 participants
Observational Model: Other
Time Perspective: Prospective
Official Title: Usefulness of Non EPI-DWI-MRI / CT 3D Static Co-registration Prior to Surgery of Cholesteatomas
Study Start Date : August 2015
Actual Primary Completion Date : August 2017
Estimated Study Completion Date : March 2018

Resource links provided by the National Library of Medicine

Primary Outcome Measures :
  1. Determination of the lesion on the scanner with the help of MRI, but without having merged both methods [ Time Frame: UP to 18 months ]
  2. Measure of the lesion volume in mm3 [ Time Frame: Up to 18 months ]

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

Patient who had surgery and suspicion of recurrence of cholesteatoma for whom it is prescribed:

  • MRI with diffusion through systematic monitoring after treatment of acquired cholesteatoma of the middle ear: between 12 and 18 months and 4 years
  • If positive MRI scanner producing a rock without injection in the preoperative assessment

Inclusion Criteria:

- Adult woman or man who had surgery and suspicion of cholesteatoma recurrence

Exclusion Criteria:

  • Chronic renal failure
  • Contraindications to MRI

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT02903550

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Contact: Arthur VAROQUAUX

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Hôpital de La Timone - Assistance Publique Hôpitaux de Marseille Recruiting
Marseille Cedex 05, France, 13385
Contact: Arthur VAROQUAUX   
Sponsors and Collaborators
Assistance Publique Hopitaux De Marseille
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Study Director: Urielle DESALBRES Assistance Publique Hôpitaux de Marseille
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Responsible Party: Assistance Publique Hopitaux De Marseille Identifier: NCT02903550    
Other Study ID Numbers: 2015-27
First Posted: September 16, 2016    Key Record Dates
Last Update Posted: March 13, 2018
Last Verified: March 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Undecided
Additional relevant MeSH terms:
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Skin Diseases