title: Computed tomography and magnetic resonance fusion imaging in cholesteatoma preoperative assessment.
abstract: The purpose of this study is to describe a method for developing fusion imaging for the preoperative evaluation of cholesteatoma. In 33 patients diagnosed with cholesteatoma, a high-resolution temporal bone computed tomography (CT) scan without intravenous contrast and propeller diffusion-weighted magnetic resonance imaging (MRI) were performed. Both studies were then sent to the BrainLAB work station, where the images were fused to obtain a morphological and color map. Intraoperative findings coincided with fusion CT-MRI imaging in all but two patients. In addition, one false positive and one false negative case were observed. CT and diffusion-weighted MRI are complementary techniques that should be employed to assess a cholesteatoma prior to surgery in many cases. Hence, to combine the advantages of each technique, we developed a fusion image technique similar to those that are routinely employed for radiotherapy planning and positron emission tomography-CT imaging. Fusion images can prove useful in selected cases.
authors.affiliation: ENT Unit, Surgical Department, Valencia Medical School, University General Hospital, C/E. Soler y Pérez 10-4A-25, 46015, Valencia, Spain. agustincampos1@yahoo.es.
authors.forename: Agustín
authors.initials: A
authors.lastname: Campos
authors.affiliation: Radiology Unit, ERESA, University General Hospital, Valencia, Spain.|Radiology, Catholic University, Valencia, Spain.
authors.forename: Federico
authors.initials: F
authors.lastname: Mata
authors.affiliation: ENT Unit, Surgical Department, Valencia Medical School, University General Hospital, C/E. Soler y Pérez 10-4A-25, 46015, Valencia, Spain.
authors.forename: Rosa
authors.initials: R
authors.lastname: Reboll
authors.affiliation: Radiology Unit, ERESA, University General Hospital, Valencia, Spain.
authors.forename: María Luisa
authors.initials: ML
authors.lastname: Peris
authors.affiliation: ENT Unit, Surgical Department, Valencia Medical School, University General Hospital, C/E. Soler y Pérez 10-4A-25, 46015, Valencia, Spain.
authors.forename: Jorge
authors.initials: J
authors.lastname: Basterra
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D018424:Cholesteatoma, Middle Ear / Q000000981:diagnostic imaging* / Q000601:surgery*; D038524:Diffusion Magnetic Resonance Imaging; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011300:Preoperative Care; D013701:Temporal Bone / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D055815:Young Adult
keywords: Cholesteatoma; Computed tomography; Fusion; Magnetic resonance